Aujourd’hui, la plupart des systèmes sont équipés d’un système d’exploitation 64 bits. To access VTune Amplifier’s memory access feature, click on the new “Memory Access” analysis type and click start. This far exceed the normal L1 access latency of 4 cycles, this often this means we have some contention issues that could be either true or false sharing. Memory problems solved using Intel VTune Amplifier. In the latest version of VTune Amplifier the bandwidth graph is relative to the maximum possible that your platform is capable of achieving so you can clearly see how much performance you are leaving on the table. Memory Performance Information. Find out what AMD Smart Access Memory is all about, and how to turn it on for a free boost in performance! We can see that each thread is independently accessing it’s element in the array so it does look like false sharing! Average Latency – The average number of cycles our memory accesses are taking. Re-Size BAR (Smart Access Memory) Performance As for the most important part, a total of four games were used in the benchmarks, including Assassin’s Creed: Valhalla, Forza Horizon 4, Red Dead Redemption 2 and Rainbow Six Siege. This increases the possibility of memory overload, but improves performance for memory-intensive tasks. By optimizing the memory accesses in your application that have the greatest latencies you can get the biggest potential performance gains. or Alienware Alpha & Alienware Steam Machine, Alienware Area 51, Alienware Area-51 ALX, Alienware Area-51 R2, Alienware Area-51 Threadripper Edition R3 and R6, Alienware Area-51 R4 and R5, Alienware Area-51 Threadripper Edition R7, Alienware Aurora, Alienware Aurora ALX, Alienware Aurora Ryzen Edition R10, Alienware Aurora R11, Alienware Aurora R2, Alienware Aurora R3, Alienware Aurora R4, Alienware Aurora R5, Alienware Aurora R6, Alienware Aurora R7, Alienware Aurora R8, Alienware Aurora R9, Alienware Alpha R2 & Alienware Steam Machine R2, Alienware X51, Alienware X51 R2, Alienware X51 R3, Dell Chromebox 3010, ChromeBox For Meetings, Dell Edge Gateway 3000 Series OEM Ready, Dimension 4__DMT, Dimension 4__DM, Dimension 1000, Dimension 1100/B110, Dimension 2010, Dimension 2100, Dimension 2200, Dimension 2300, Dimension 2300C, Dimension 2350, Dimension 2400, Dimension 2400C, Dimension 3000, Dimension 3100/E310, Dimension 3100C, Dimension 4100, Dimension 4200 (Germany and Japan Only), Dimension 4300, Dimension 4300S, Dimension 4400, Dimension 4500, Dimension 4500C (Japan Only), Dimension 4500S, Dimension 4550, Dimension 4590T, Dimension 4600, Dimension 4600C, Dimension 4700, Dimension 4700C, Dimension 5000, Dimension 5100, Dimension 5100C, Dimension 5150C, Dimension 5150/E510, Dimension 8100, Dimension 8200, Dimension 8250, Dimension 8300, Dimension 8300N, Dimension 8400, Dimension 900 (Japan Only), Dimension 9100, Dimension 9150/XPS 400, Dimension 9200, Dimension 9200c, Dimension XPS B___r, Dimension C___ (Japan Only), Dimension C521, Dimension J___c (Japan Only), Dimension XPS D___, Dimension XPS 50 / 66 MDT, Dimension E520, Dimension E521, Dimension XPS __ FS, XPS/Dimension XPS Gen 2, XPS/Dimension XPS Gen 3, XPS/Dimension XPS Gen 4, XPS/Dimension XPS Gen 5, Dimension XPS H___, Dimension L___c, Dimension L___cx, Dimension L___cxe, Dimension L___r, Dimension M___a / P___a, Dimension XPS P___c MDT, Dimension XPS P___c MT, Dimension P75,90 MDT, Dimension P75,90 MT, Dimension XPS P___s MDT, Dimension XPS P___s MT, Dimension P___t MDT, Dimension P___t MT, Dimension P___v MDT, Dimension P___v MT, Dimension XPS P60 FS, Dimension XPS P60 M, Dimension XPS P60 MT, Dimension XPS Pro___ MT, Dimension XPS Pro___n MDT, Dimension XPS Pro___n MT, Dimension XPS R___, Dimension 4__DL, Dimension XPS T___, Dimension V___ / V___c, XPS/Dimension XPS, Dimension XPS 4100V / 66V MT, Dimension XPS M___s, Dimension XPS 66 / 100 MDT II, Dimension XPS P75,90,100 MDT, Dimension XPS P75,90,100 MT, Dell G5 5000, Dell G5 5090, Inspiron 3043, Inspiron 3048, Inspiron 3052, Inspiron 3059, Inspiron 20 3064, Inspiron 3263, Inspiron 3264 AIO, Inspiron 3265, Inspiron 3275, Inspiron 3277, Inspiron 3280 AIO, Inspiron 5348, Inspiron 2350, Inspiron 3452 AIO, Inspiron 3455, Inspiron 3459, Inspiron 24 3464, Inspiron 3475, Inspiron 3477, Inspiron 3480 AIO, Inspiron 5400 AIO, Inspiron 5401 AIO, Inspiron 24 5459 AIO, Inspiron 24 5475, Inspiron 5477, Inspiron 24 5488, Inspiron 5490 AIO, Inspiron 5491 AIO, Inspiron 7459, Inspiron 7700 AIO, Inspiron 27 7775, Inspiron 7777, Inspiron 7790 AIO, Inspiron 3045, Inspiron 3050, Inspiron 3250, Inspiron 3252, Inspiron 3268, Inspiron 3470, Inspiron 3471, Inspiron 3472, Inspiron 3646, Inspiron 3647, Inspiron 3650, Inspiron 3655, Inspiron 3656, Inspiron 3662, Inspiron 3668, Inspiron 3670, Inspiron 3671, Inspiron 3847, Inspiron 3880, Inspiron 3881, Inspiron 518, Inspiron 519, Inspiron 530, Inspiron 530s, Inspiron 531, Inspiron 531s, Inspiron 535, Inspiron 535s, Inspiron 537, Inspiron 537s, Inspiron 545, Inspiron 545s, Inspiron 546, Inspiron 546s, Inspiron 560, Inspiron 560s, Inspiron 5675, Inspiron 5676, Inspiron 5680, Inspiron 570, Inspiron 580, Inspiron 580s, Inspiron 620, Inspiron 620s, Inspiron 660, Inspiron 660s, Inspiron One 19, Inspiron One 19 Touch, Inspiron One 2020, Inspiron One 2205, Inspiron One 2330, Inspiron One 2305, Inspiron One 2310, Inspiron One 2320, Inspiron Zino 300, Inspiron Zino HD 400, Inspiron Zino HD 410, OptiPlex 160, OptiPlex 160L, OptiPlex 170L, OptiPlex 210L, OptiPlex 210LN, OptiPlex 3010, OptiPlex 3011, OptiPlex 3020, OptiPlex 3020M, OptiPlex 3030 All In One, OptiPlex 3040, OptiPlex 3046, OptiPlex 3050 All In One, OptiPlex 3050, OptiPlex 3060, OptiPlex 3070, OptiPlex 3080, OptiPlex 320, OptiPlex 3240 All-in-One, OptiPlex 3280 All In One, OptiPlex 330, OptiPlex 360, OptiPlex 380, OptiPlex 390, OptiPlex 486 L, OptiPlex 486 LE, OptiPlex 486 MTE, OptiPlex 486 MX, OptiPlex 486 MXE, OptiPlex 5040, OptiPlex 5050, OptiPlex 5055 A-Series, OptiPlex 5055 Ryzen APU, OptiPlex 5055 Ryzen CPU, OptiPlex 5060, OptiPlex 5070, OptiPlex 5080, OptiPlex 5250 All In One, OptiPlex 5260 All In One, OptiPlex 5270 All In One, OptiPlex 5480 All In One, OptiPlex 560L, OptiPlex 580, OptiPlex 7010, OptiPlex 7020, OptiPlex 7040, OptiPlex 7050, OptiPlex 7060, OptiPlex 7070, OptiPlex 7070 Ultra, OptiPlex 7071, OptiPlex 7080, OptiPlex 740, OptiPlex 7440 AIO, OptiPlex 745, OptiPlex 7450 All In One, OptiPlex 745c, OptiPlex 7460 All In One, OptiPlex 7470 All In One, OptiPlex 7480 All In One, OptiPlex 755, OptiPlex 760, OptiPlex 7760 All In One, OptiPlex 7770 All In One, OptiPlex 7780 All In One, OptiPlex 780, OptiPlex 790, OptiPlex 9010, OptiPlex 9010 All In One, OptiPlex 9020 All In One, OptiPlex 9020, OptiPlex 9020M, OptiPlex 9030 All In One, OptiPlex 960, OptiPlex 980, OptiPlex 990, OptiPlex DGX, OptiPlex E1, OptiPlex FX130, OptiPlex FX160, OptiPlex FX170, OptiPlex G1, OptiPlex GC, OptiPlex GL Plus, OptiPlex GM Plus, OptiPlex GMT Plus, OptiPlex GN Plus, OptiPlex GS, OptiPlex GS Plus, OptiPlex GX1, OptiPlex GX100, OptiPlex GX110, OptiPlex GX115, OptiPlex GX150, OptiPlex GX1p, OptiPlex GX200, OptiPlex GX240, OptiPlex GX260, OptiPlex GX260n, OptiPlex GX270, OptiPlex GX270n, OptiPlex GX280, OptiPlex GX300, OptiPlex GX400, OptiPlex GX50, OptiPlex GX520, OptiPlex GX60, OptiPlex GX60n, OptiPlex GX620, OptiPlex GXA, OptiPlex Gxi, OptiPlex GXL, OptiPlex GXM, OptiPlex GXMT, OptiPlex GXPRO, OptiPlex HUB, OptiPlex L60, OptiPlex N, OptiPlex NX, OptiPlex NX1, OptiPlex SX260, OptiPlex SX270, OptiPlex SX270N, OptiPlex SX280, OptiPlex VDI Blaster Dell Edition, OptiPlex XE, OptiPlex XE2, OptiPlex XE3, OptiPlex XL5, OptiPlex XM5, OptiPlex XMT5, OEMR 1435, OEMR 1850, OEMR 1950, OEMR R210II, OEMR 2800, OEMR 2850, System 200, 200e, System 210, System 220, System 220e, PCs Limited 286 X, OEMR 2950, OEMR 2970, Precision 3440 XE Small Form Factor, Precision 3640 XE Tower, System 300, System 310, System 316, 320LX, 320SX, System 325, System 325D, 333D, PCs Limited 386-16, System 325P, 333P, 316SX, 333S/L, 3xxSXcr, V386 DX, V386 SX, 433P, 486D/xx, 486/MT, 486P/xx, 4xxDE, 4xx/V, 4xxs/V, 4xx/DV, 4xxs/DV, 425E, 433E, 4xx/L, 4xxs/L, 4xx/M, 4xxs/M, V486/__ MDT Rev 2, V486/__ MDT Rev 3, V486/50/66 MDT Rev 3 Cache, 4xx/ME, 4xxs/ME, 4xx/P, 4xxs/P, V4xx/i, V4xxs/i, V486/__ Rev. Evaluation of External Memory Access Performance on a High-End FPGA Hybrid Computer Konstantinos Kalaitzis, Evripidis Sotiriadis, Ioannis Papaefstathiou and Apostolos Dollas * School of Electrical and Computer Engineering, Technical University of Crete, Chania 731 00, Greece; 1, V486/__ FS Rev 3, V486/50/66 FS Rev. The “Memory Bound” metric is also much lower and the “L1 Bound” issue has been resolved. Step #1 – Run memory access analysis to uncover potential memory issues. AMD’s Smart Access Memory technology which is a fancy name for BAR (Base Address Register) will not require users to invest in a PCIe Gen 4 platform as it will be supported by PCIe Gen 3 too. Among other things, they have new technologies Infinity Cache and Smart Access Memory. At the end of November 2020, AMD released new graphics cards – the Radeon RX 6800 and 6800XT. Avant de mettre à niveau votre RAM, vérifiez que votre système d’exploitation prend en charge la nouvelle quantité de mémoire. In the summary section there are some very useful metrics. It’s a simple equation - … In a processor that supports Non-Uniform Memory Access (NUMA), it is not enough to know that you missed a cache on the CPU where you are running. En règle générale, plus la mémoire RAM est large, plus la vitesse de traitement est rapide. Oddly enough, World War Z received a significant 4% boost in frame rate at 4K. We showed how users could detect false sharing problems by seeing high Average Latency values for relatively small memory objects. • The effect of REF (refresh) to the access performance is negligible.The effect of REF (refresh) to the access performance is negligible. The latencies for this type of access are an order of magnitude greater than the local case. We improved application performance by 4x with a trivial 1-line code change by just padding a structure. Turn off user interface animations. It is the addition of the execution time for the memory instructions and the memory stall cycles. Run the Memory Access analysis on this application. While conventional Windows-based PCs can only access up to 256MB of graphics memory at the same time, this technology allows the processor to extend the data channel, allowing the entire video memory array to be accessed at once, eliminating potential bottlenecks and achieving improved performance in … The complexities of NUMA architectures necessitate greater attention to the details of your memory accesses. System memory is not permanent storage, like a hard disk drive that saves its contents when you turn off your system. AMD Smart Access Memory Tested & Benchmarked on Intel 400-Series (Z490) Motherboard With Radeon RX 6800 XT, Shows Up To 16% Gains In Performance. Here's how speed and latency are related at a technical level – and how you can use this information to optimize your memory's performance. In the latest version of VTune Amplifier the bandwidth graph is relative to the maximum possible that your platform is capable of achieving so you can clearly see how much performance you are leaving on the table. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. We also showed some tough memory problems could be resolved by using this feature. N’oubliez pas qu’il est important de planifier la façon dont vous souhaitez utiliser votre système Dell maintenant et à l’avenir. Switch to Bottom-up tab to see more details: From the timeline graph we see that DRAM bandwidth is utilized on only one of the sockets, package_1. When you start a program, your processor gives a command to retrieve the program from the hard drive. 02/21/2018; 3 minutes to read; In this article. 's Memory Access analysis to identify memory-related issues, like NUMA problems and bandwidth-limited accesses, and attribute performance events to memory objects (data structures), which is provided due to instrumentation of memory allocations/de-allocations and … Don’t have an Intel account? To help fix this you can find the places in your code contributing to bandwidth. Memory bandwidth is just as important but it is often not as well understood by software developers. loop-unrolling and memory access performance Hello, :) I appreciate it if anyone can suggest something on my question: I have an OpneCL task hardware (1CU, 1PE), which contains a main for loop. Because DDR2 operates at DSP/3, so it means that I can get one data at the frequency of DSP*2/3 clock rate. Turn off action tags. Lorsque vous êtes prêt à effectuer une mise à niveau, choisissez une mémoire certifiée par Dell pour une installation simple et pour vous assurer que le module de mémoire est compatible avec votre système. For this case we’ll study a simple triad application parallelized using OpenMP* and running a dual-socket Haswell-based Xeon. Memory performance information is available from the memory manager through the system performance counters and through functions such as GetPerformanceInfo, GetProcessMemoryInfo, and GlobalMemoryStatusEx.Applications such as the Windows Task Manager, the Reliability and Performance … In NUMA architectures you could also be referencing the cache and DRAM on another CPU. Si votre système a moins de 4 Go de RAM, l’ajout de RAM supplémentaire améliore grandement ses performances. Identify the code source and memory objects that are inducing bandwidth. We can accomplish by adding a “omp parallel for” pragma to our initialization loop. First we initialize the arrays and then call the triad function that uses a “omp parallel for”. The execution time is the time for a cache access, and the memory stall cycles include the time to service a … Microsoft Access has a useful performance tool built right into the product. False sharing can typically be easily avoided be adding padding so that threads always access different cache lines. By signing in, you agree to our Terms of Service. Smart Access Memory : PCIe Resizable BAR for AMD! Step #1 – Investigate Bandwidth Utilization. Afin d’ouvrir le menu Système, cliquez sur le bouton. Yesterday AMD launched the flagship Radeon RX 6900 XT graphics card based on the RDNA 2 architecture. Access DDR2 via cache make the DDR2 operate on burst mode. Try these quick links to visit popular site sections. Dans de nombreux cas, la mise à niveau de la RAM peut impliquer le remplacement de modules RAM existants par des modules de plus grande taille, également limités par la capacité du système. Placez le pointeur de la souris en bas à gauche du Bureau et cliquez avec le bouton droit de la souris pour ouvrir la liste des options. 6 mins ago admin . Cet article explique comment la mémoire système (mémoire vive, RAM) affecte les performances du système. Smart Access Memory removes that limitation, thus boosting performance due to faster data transfer speeds between the CPU and GPU. La RAM est dotée de deux principaux attributs qui affectent les performances de votre système : la capacité de la mémoire et la vitesse de la mémoire. For example the latency of an L1 cache hit is vastly different from the latency of an access that misses all of your memory caches and needs to access DRAM. password? First, it runs through the block of memory sequentially, accessing every value. The performance improvement is about eight times. En règle générale, plus votre système comporte de RAM, plus l’espace numérique avec lequel vous devez travailler est large et plus vos programmes sont rapides. The following guidelines can help improve Access performance, regardless of whether the database with which you are working is stored on your computer or on a network. Graph Memory Bandwidth over the lifetime of your application. Cette quantité de mémoire peut traiter les applications uniques. Veuillez réessayer ultérieurement. Abstract—Optimizing memory access is critical for perfor-mance and power efficiency. You can also see how effective your DRAM and QPI bandwidth is being utilized (Figure 13). Les mises à niveau de la RAM sont limitées par la capacité du système et la disponibilité des connecteurs d’extension pour l’ajout de RAM. Yesterday AMD launched the flagship Radeon RX 6900 XT graphics card based on the RDNA 2 architecture. One of the Bandwidth is now equally split between the sockets and QPI traffic is 3x lower. Cet « espace numérique » est votre mémoire RAM. Dans la section Système, à côté de l’option Mémoire installée (RAM), vous pouvez voir la quantité de RAM dont votre système dispose. By examining the allocation stack for the ‘stddefines.h:52 (512B)’ object we can see source location where the object was allocated. How your application accesses memory can dramatically impact performance. (Figure 14). For our first run the “Elapsed time” is 50 seconds. These performance penalties are necessary because all of the different threads/cores need to agree what is stored at a memory address and synchronizing all of the various caches due to this contention. Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. Cette capacité standard la mémoire RAM ne manipulez les tâches de l'utilisateur moyen, telles que la navigation Web, travaillant dans des documents Word, et la messagerie électronique, avec la facilité. Cela signifie que votre processeur, plus rapide, possède la capacité d'interagir avec les autres composants aussi rapidement et rend ainsi votre ordinateur beaucoup plus efficace. What is puzzling is the “Bandwidth Utilization” Histogram shows only a medium DRAM bandwidth utilization level, around 50 – 60 GB/s, this will need to be investigated. The first argument is. Capacité de la mémoire : plus votre module de mémoire comporte de gigaoctet (Go), plus vous pouvez ouvrir de programmes en même temps. Sequence of memory performance measurements. Dans la section Système, sous Type de système, vous pouvez visualiser le registre que votre système utilise. Our biggest takeaway is that how you arrange and access your memory has huge performance ramifications. Consider entities in … You can see the sections of code that have more DRAM issues, QPI issues, etc. Our Elapsed Time has decreased from 12.449 to 6.69 seconds, this is almost a 2x speed-up. Microsoft fournit une liste très utile via le lien hypertexte ci-dessous, indiquant les versions de Windows et la quantité de RAM prise en charge : Limites de mémoire pour les versions Windows et Windows Server. . System memory is not permanent storage, like a hard disk drive that saves its contents when you turn off your system. Une fois les fichiers récupérés, le système requiert un espace de travail pour manipuler les données et pour vous permettre d’interagir avec lui. Cette capacité de mémoire RAM robuste est parfait pour les joueurs intensifs et les utilisateurs et créateurs de contenu multimédia haut de gamme. Cependant, l'ajout de mémoire RAM est une meilleure solution parce que votre processeur peut lire les données dans la mémoire RAM beaucoup plus rapidement que sur le disque dur. Abstract: Optimizing memory access is critical for performance and power efficiency. A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. Désolé, notre système de collecte des commentaires est actuellement indisponible. The ability to track down the code sections in your application that are inducing memory bandwidth is a powerful feature. Next it runs through the same block … La mémoire système de votre ordinateur est constituée d’une mémoire physique, appelée mémoire vive (RAM), et d’une mémoire virtuelle. Using this new analysis type you can: Detect performance problems by memory hierarchy (e.g., L1-, L2-, … This is a very useful for users who will be moving to KNL and would like to know if the memory access portion of their code is ready. At the 4K resolution though, the average performance boost from Smart Access Memory dropped to just 3.11%. We improved application performance by 2x after removing the remote access. 14% performance gain on average. By viewing the bandwidth in a graph that shows your Read/Write Bandwidth in GB/Sec you can see where in your application spikes in memory usage and target the section of your application where the extra memory usage occurs. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice. Having issue on global memory access from a kernel…the code below represents what I am doing…reading the documentation I tried all I could find with no effect ( notice volatile/threadfence below)… I have encountered th… En règle générale, plus la mémoire RAM est large, plus la vitesse de traitement est rapide. We also showed how users could help detect NUMA issues with significant amount of remote memory accesses. Step #3 – Modify the code to remove the false sharing. Also, our “DRAM bandwidth” utilization moved to high levels, aligned with expectations. 13% gain in minimum FPS. SortedList is a flat list (so no huge increase in memory footprint), that uses binary-search for access - so O(log(n)) - so not as fast as Dictionary at O(1) - but much better than a List (or other linear search) at O(n). KNL Bandwidth Estimate – This is an estimate of the expected per core bandwidth if run on Intel’s new of Intel Xeon Phi platform (code named Knights Landing) . From my colleage I learn that DDR2 access time can be half cycle at the best time. You need the ability to identify and optimize these remote memory accesses. Elle peut gérer plusieurs programmes ouverts en même temps et de nouvelles technologies. Average Latency is critical when tuning for Memory Accesses. Intel® VTune™ Amplifier is a performance profiler that now has the many features you can use to analyze memory accesses, these features are contained in the new “Memory Access” analysis type. CPU manufacturers have developed sampling-based performance measurement units (PMUs) that report precise costs of memory accesses at specific addresses. False sharing is when two different threads access a piece of memory that is located on the same cache line, they don’t actually share the same piece of memory but because the memory references are located close together they just happen to be stored together on same cache line. Recherchez votre système sur le site Web de support Dell et vérifiez les spécifications du système avant d’acheter une extension de mémoire RAM. Il s’agit de la capacité de la RAM standard livrée avec les ordinateurs exécutant Windows Vista ou Windows XP. Today’s modern processors have many different types of memory accesses. Tools that help minimize memory latency and increase bandwidth can greatly assist developers with pin-pointing performance bottlenecks and diagnosing their causes. The new Elapsed Time is now 12 seconds, we improved the application’s performance by approximately 4 times just by making a one line code change that padded a structure. . Vitesse de la mémoire : le temps qu’une requête du processeur prend pour atteindre la RAM et ensuite écrire ou lire des données. AMD pledges up to 15% performance gain thanks to Smart Access Memory 2 min read. CPU manufacturers have developed sampling-based performance measurement units (PMUs) that report precise costs of memory accesses at specific addresses. Most of the games had insignificant boosts in frame rates of 2-3%. Step #4 – Re-run Memory Analysis with KMP_AFFINITY variable. Assassin’s Creed Valhalla 1080p resolution, highest settings. First some quick definitions, if more than one thread accesses the same piece of memory than they are said to “share” the memory. De nombreuses tablettes et certains systèmes portables d’entrée de gamme ne disposent pas d’une RAM extensible. Your computer's system memory is made up of physical memory, called Random Access Memory (RAM), and virtual memory. If we change the code to make both sockets access only local memory, thus avoiding remote node accesses, it should let us run faster. Using this new analysis type you can: This article will present an overview of the new “Memory Access” feature and will also show several tough memory problems that demonstrate how this feature can be used to greatly increase an applications performance. Intel® VTune™ Amplifier is a performance profiler that now has the many features you can use to analyze memory accesses, these features are contained in the new “Memory Access” analysis type. Add more RAM to your computer The expectation is for it to be DRAM bandwidth bound , it should utilize the system bandwidth up to the maximum. La vitesse de votre processeur et la vitesse du bus de la carte mère du système sont les facteurs de limitation de la vitesse de la RAM installée sur votre système. The browser version you are using is not recommended for this site.Please consider upgrading to the latest version of your browser by clicking one of the following links. › A series of measurements is conducted by repeatedly invoking the function accessData() with different parameters inside the function measurePerformance(). Infinity Cache To compete with NVIDIA and make high-performance graphics cards, AMD needed […] It is critical to optimize the memory accesses of your program. La vitesse de la mémoire RAM est mesurée en mégahertz (MHz), en millions de cycles par seconde, pour qu'elle puisse être comparée à la vitesse d'horloge de votre processeur. Avec une mémoire RAM plus rapide, vous augmentez la vitesse à laquelle la mémoire transfère les informations à d'autres composants. Kevin P O'Leary, Published:05/19/2016   Forgot your Intel Certains systèmes s’appuient sur une conception plus ancienne et utilisent un système d’exploitation 32 bits (X86). Si vous envisagez de mettre à niveau votre RAM pour améliorer les performances de votre ordinateur, commencez par déterminer combien de RAM votre système comporte et si le processeur utilise un registre 32 bits (x86) ou 64 bits. For this case we’ll study the linear_regression application from the phoenix suite (http://csl.stanford.edu/~christos/sw/phoenix). Grouping by the Bandwidth Domain allows you to identify memory objects that are contributing most to your memory bandwidth (Figure 14). While the two are closely related, they're not connected in the way you might think. 3 Cache, V486/__ SDT Rev 3, 4xxSE, V486/__S Rev 1 FS, V486/__S Rev 2 FS, 4xx/T, 425TE, 433TE, 40xe/XE, Pentium 5 ME, 560 NP, OptiPlex 7080 XE Micro Form Factor, OEM Ready OptiPlex 760, OEMR 850, OEMR 860, Pentium CR100, OEMR DBE, Dell Edge Gateway 5000 OEM Ready, Dell Edge Gateway 5100 OEM Ready, Dell Embedded Box PC 3000 OEM, Dell Embedded Box PC 5000 OEM, Pentium 510D, Pentium 610D, Dell PowerVault OEM Ready MD34XX and MD38XX, OEMR ME40XX and ME4XX, OEMR P2214H, OEMR R200, OEMR R210, OEMR R220, OEMR R230, OEMR R240, OEMR R300, OEMR R310, OEMR R320, OEMR R330, OEMR R340, OEMR R410, OEMR R420, OEMR R430, OEMR R440, OEMR R510, OEMR R520, OEMR R530, OEMR R540, OEMR R5500, OEMR R610, OEMR R620, OEMR R630, OEMR R640, OEMR XL R640, OEMR R6415, OEMR R6515, OEMR R6525, OEMR R710, OEMR R720, OEMR R720xd, OEMR R730, OEMR R730xd, OEMR R740, OEMR XL R740, OEMR R740xd, OEMR XL R740xd, OEMR R740xd2, OEMR R7415, OEMR R7425, OEMR R7515, OEMR R7525, OEMR R810, OEMR R820, OEMR R830, OEMR R840, OEMR R910, OEMR R920, OEMR R930, OEMR R940, OEMR R940xa, OEMR SC400 and SC420, OEMR SC460, OEMR SC5020, OEMR SC7020, OEMR SC7020 All Flash, OEMR SCv20XX and SC1XX, OEMR SCV300, OEMR SCV3000, OEMR SCV3020, OEMR SCV320, OEMR SCv360, OEM Dell Storage Manager, OEMR T130, OEMR T140, OEMR T320, OEMR T330, OEMR T340, OEMR T420, OEMR T430, OEMR T440, OEMR T610, OEMR T620, OEMR T630, OEMR T640, OEMR XL T640, OEMR T710, OEMR OPTI XE, Pentium Proc Upgrade, OEMR OPTI XE2, OEMR OPTI XE3, XL 9010, OEMR XL R210, OEMR XL R210II, OEMR XL R220, OEMR XL R230, OEMR XL R240, OEMR XL R330, OEMR XL R340, Precision 3930 XL Rack, OEMR XL R520, OEMR XL R5500, OEMR XL R610, OEMR V2 XL R610, OEMR XL R620, OEMR XL R630, OEMR XL R710, OEMR XL V2 R710, OEMR XL R720, OEMR XL R720xd, OEMR XL R730, OEMR XL R730XD, R7910 XL, 7920 XL Rack, Precision 3430 XL Small Form Factor, T3600 XL, Precision 3630 XL Tower, T5600 XL, T5810 XL, 5820 XL Tower, T7810 XL, 7820 XL Tower, T7910 XL, 7920 XL Tower, Studio Desktop D540, Studio Hybrid D140G, Studio One 19 1909, Studio Slim D540S, Studio XPS 435 MT, Studio XPS 7100, Studio XPS 8000, Studio XPS 8100, Studio XPS 435T / 9000, Studio XPS 9100, Vostro 3015, Vostro 3052, Vostro 3055, Vostro 200, Vostro 220, Vostro 220s, Vostro 3340, Vostro 230, Vostro 230s, Vostro 5450, Vostro 5460 AIO, Vostro 260, Vostro 260g, Vostro 260s, Vostro 270, Vostro 270g, Vostro 270s, Vostro 3070, Vostro 320, Vostro 3250, Vostro 3252, Vostro 3267, Vostro 3268, Vostro 330, Vostro 3470, Vostro 3471, Vostro 360, Vostro 3650, Vostro 3653, Vostro 3660 Desktop, Vostro 3667 Desktop, Vostro 3668, Vostro 3669 Desktop, Vostro 3670, Vostro 3671, Vostro 3681, Vostro 3800, Vostro 3881, Vostro 3888, Vostro 3900, Vostro 3900G Mini Tower, Vostro 3901, Vostro 3902, Vostro 3905, Vostro 400, Vostro 410, Vostro 420, Vostro 430, Vostro 460, Vostro 470, Vostro 5090, Vostro 5880, Vostro A100, Vostro A180, XPS 18 1810, XPS 18 1820, XPS 200, XPS 210, XPS One 2720, XPS 27 7760, XPS 400/Dimension 9150, XPS 410, XPS 420, XPS 430, XPS 625, XPS 630i, XPS 700 Jet Black, XPS 710, XPS 710 H2C, XPS 720, XPS 720 H2C, XPS 730, XPS 730 H2C, XPS 730x, XPS 730x H2C, XPS 8300, XPS 8500, XPS 8700, XPS 8900, XPS 8910, XPS 8920, XPS 8930, XPS 8940, XPS 600, XPS One 20, XPS One 24, XPS One 2710, Adamo 13, Adamo XPS, Alienware 13, Alienware 13 R3, Alienware 13 R2, Alienware 14, Alienware 15, Alienware 15 R3, Alienware 15 R2, Alienware 15 R4, Alienware 17, Alienware Area-51m, Alienware 17 R4, Alienware 17 R2, Alienware 17 R3, Alienware 17 R5, Alienware 18, Alienware Area-51m R2, Alienware M11x, Alienware M11x R2, Alienware M11x R3, Alienware M14x, Alienware M14x R2, Alienware m15, Alienware m15 R2, Alienware m15 R3, Alienware M15x, Alienware m17, Alienware m17 R2, Alienware m17 R3, Alienware M17x, Alienware M17x R2, Alienware M17x R3, Alienware M17x R4, Alienware M18x, Alienware M18x R2, Chromebook 11, Chromebook 3100 2-in-1, Chromebook 3100, Chromebook 3120, Chromebook 11 3180, Chromebook 11 3189, Chromebook 5190 2-in-1, Chromebook 5190 Education, Chromebook 13 3380, Chromebook 7310, Chromebook 3400, Dell G3 15 3500, Dell G3 3579, Dell G3 15 3590, Dell G5 15 5500, Dell G5 SE 5505, Dell G5 15 5587, Dell G5 15 5590, Dell G7 15 7500, Dell G7 15 7588, Dell G7 15 7590, Dell G3 3779, Dell G7 17 7700, Dell G7 17 7790, Inspiron 1000, Inspiron 3137, Inspiron 3138, Inspiron 3147, Inspiron 3148, Inspiron 3152 2-in-1, Inspiron 3153 2-in-1, Inspiron 3157 2-in-1, Inspiron 3158 2-in-1, Inspiron 11 3162/3164, Inspiron 11 3168, Inspiron 11 3169, Inspiron 11 3179, Inspiron 11 3180, Inspiron 11 3185 2-in-1, Inspiron 3195 2-in-1, Inspiron 1100, Inspiron 10z 1120, Inspiron 11z 1121, Inspiron 1150, Inspiron 11z 1110, Inspiron 11z 1120, Inspiron 5280 2-in-1, Inspiron 1200, Inspiron 1210, Inspiron 13 N3010, Inspiron 5300, Inspiron 5301, Inspiron 13 5368 2-in-1, Inspiron 5370, Inspiron 13 5378 2-in-1, Inspiron 13 5379 2-in-1, Inspiron 5390, Inspiron 5391, Inspiron 7300 2-in-1, Inspiron 7300, Inspiron 7306 2-in-1, Inspiron 7347, Inspiron 7348 2-in-1, Inspiron 7352, Inspiron 7353 2-in-1, Inspiron 7359 2-in-1, Inspiron 13 7368 2-in-1, Inspiron 7370, Inspiron 7373 2-in-1, Inspiron 13 7375 2-in-1, Inspiron 13 7378 2-in-1, Inspiron 7380, Inspiron 7386 2-in-1, Inspiron 7390 2-in-1, Inspiron 7391 2-in-1, Inspiron 7391, Inspiron 1300, Inspiron 1318, Inspiron 1320, Inspiron 13 1370, Inspiron 13z N301z, Inspiron 13z 5323, Inspiron 14 1440, Inspiron 3420, Inspiron 3421, Inspiron 3437, Inspiron 3441, Inspiron 3442, Inspiron 3443, Inspiron 3451, Inspiron 3452, Inspiron 3458, Inspiron 14 3459, Inspiron 14 3462, Inspiron 14 3465, Inspiron 14 3467, Inspiron 14 3468, Inspiron 14 3473, Inspiron 14 3476, Inspiron 3480, Inspiron 3481, Inspiron 3482, Inspiron 3490, Inspiron 3493, Inspiron 5400 2-in-1, Inspiron 5401/5408, Inspiron 5402/5409, Inspiron 5405, Inspiron 5406 2-in-1, Inspiron 5439, Inspiron 5442, Inspiron 14 5443, Inspiron 5445, Inspiron 5447, Inspiron 5448, Inspiron 5451, Inspiron 5452, Inspiron 5455, Inspiron 5457, Inspiron 5458, Inspiron 5459, Inspiron 14 5468, Inspiron 5480, Inspiron 5481 2-in-1, Inspiron 5482 2-in-1, Inspiron 14 5485 2-in-1, Inspiron 14 5485, Inspiron 5488, Inspiron 5490, Inspiron 5491 2-in-1, Inspiron 5493, Inspiron 5494, Inspiron 5498, Inspiron 7400, Inspiron 7405 2-in-1, Inspiron 7437, Inspiron 14 7447, Inspiron 14 7460, Inspiron 14 Gaming 7466, Inspiron 14 Gaming 7467, Inspiron 7472, Inspiron 7490, Inspiron 14 M4010, Inspiron 14 M4040, Inspiron 14 N4020, Inspiron 14 N4050, Inspiron 14 N4030, Inspiron 14 (N4120), Inspiron 1410, Inspiron 1420, Inspiron 1425, Inspiron 1427, Inspiron 1428, Inspiron 1440, Inspiron 1464, Inspiron 14R N4010, Inspiron 14R 5420, Inspiron 14R 5421, Inspiron 14R 5437, Inspiron 14R N4110, Inspiron 14R SE 7420, Inspiron 14z 1470, Inspiron 14z 5423, Inspiron 3501, Inspiron 3505, Inspiron 3520, Inspiron 3521, Inspiron 3531, Inspiron 3537, Inspiron 3541, Inspiron 3542, Inspiron 3543, Inspiron 3551, Inspiron 3552, Inspiron 15 3555, Inspiron 3558, Inspiron 15 3559, Inspiron 15 3565, Inspiron 15 3567, Inspiron 15 3568, Inspiron 15 3573, Inspiron 15 3576, Inspiron 3580, Inspiron 3581, Inspiron 3582, Inspiron 3583, Inspiron 3584, Inspiron 3585, Inspiron 3590, Inspiron 3593, Inspiron 3595, Inspiron 5501/5508, Inspiron 5502/5509, Inspiron 5505, Inspiron 5542, Inspiron 5543, Inspiron 5545, Inspiron 5547, Inspiron 5548, Inspiron 5551, Inspiron 5552, Inspiron 5555, Inspiron 5557, Inspiron 5558, Inspiron 5559, Inspiron 15 5565, Inspiron 15 5566, Inspiron 15 5567, Inspiron 15 5568 2-in-1, Inspiron 5570, Inspiron 5575, Inspiron 15 Gaming 5576, Inspiron 15 Gaming 5577, Inspiron 15 5578 2-in-1, Inspiron 15 5579 2-in-1, Inspiron 5580, Inspiron 15 5582 2-in-1, Inspiron 15 5583, Inspiron 15 5584, Inspiron 15 5585, Inspiron 5590, Inspiron 5591 2-in-1, Inspiron 5593, Inspiron 5594, Inspiron 5598, Inspiron 7500 2-in-1 Black, Inspiron 7500 2-in-1 Silver, Inspiron 7500, Inspiron 7501, Inspiron 7506 2-in-1, Inspiron 7537, Inspiron 7547, Inspiron 7548, Inspiron 7557, Inspiron 7558, Inspiron 15 7559, Inspiron 15 7560, Inspiron 15 Gaming 7566, Inspiron 15 Gaming 7567, Inspiron 7568 2-in-1, Inspiron 15 7569 2-in-1, Inspiron 7570, Inspiron 15 7572, Inspiron 7573 2-in-1, Inspiron 15 Gaming 7577, Inspiron 15 7579 2-in-1, Inspiron 7580, Inspiron 7586 2-in-1, Inspiron 7590 2-in-1, Inspiron 7590, Inspiron 7591 2-in-1, Inspiron 7591, Inspiron M5040, Inspiron 15 N5010, Inspiron 15 N5040, Inspiron 15 N5050, Inspiron 15 M5010, Inspiron 15 M5030, Inspiron 15 N5030, Inspiron 1501, Inspiron 1520, Inspiron 1521, Inspiron 1525, Inspiron 1526, Inspiron 1545, Inspiron 1546, Inspiron 15 1564, Inspiron 15R 5520, Inspiron 15R 5521, Inspiron 15R 5537, Inspiron 15R N5110, Inspiron 15R SE 7520, Inspiron 15z 1570, Inspiron 15z 5523, Inspiron 3721, Inspiron 3737, Inspiron 3780, Inspiron 3781, Inspiron 3782, Inspiron 3785, Inspiron 3790, Inspiron 3793, Inspiron 5748, Inspiron 5749, Inspiron 5755, Inspiron 5758, Inspiron 5759, Inspiron 17 5765, Inspiron 17 5767, Inspiron 5770, Inspiron 5775, Inspiron 7706 2-in-1, Inspiron 7737, Inspiron 7746, Inspiron 17 7773 2-in-1, Inspiron 17 7778 2-in-1, Inspiron 17 7779 2-in-1, Inspiron 7786 2-in-1, Inspiron 7791 2-in-1, Inspiron 17 N7010, Inspiron 1720, Inspiron 1721, Inspiron 1750, Inspiron 1764, Inspiron 17R 5720, Inspiron 17R 5721, Inspiron 17R 5737, Inspiron 17R N7110, Inspiron 17R SE 7720, Inspiron 2000, Inspiron 2100, Inspiron 2200, Inspiron 2500, Inspiron 2600, Inspiron 2650, Inspiron 3000, Inspiron 300m, Inspiron 3135, Inspiron 3200, Inspiron 3500, Inspiron 3700, Inspiron 3800, Inspiron 4000, Inspiron 4100, Inspiron 4150, Inspiron 5000, Inspiron 5000e, Inspiron 500m, Inspiron 5100, Inspiron 510m, Inspiron 5150, Inspiron 5160, Inspiron 5425, Inspiron 6000, Inspiron 600m, Inspiron 630m, Inspiron 6400, Inspiron 640M, Inspiron 7000, Inspiron 700M, Inspiron 710M, Inspiron 7500 (End of Life), Inspiron 8000, Inspiron 8100, Inspiron 8200, Inspiron 8500, Inspiron 8600, Inspiron 8600c, Inspiron 9100, Inspiron 9200, Inspiron 9300, Inspiron 9400, Inspiron B120, Inspiron B130, Inspiron Chromebook 11 3181, Inspiron Chromebook 11 3181, Inspiron Chromebook 11 3181 2-in-1, Inspiron Chromebook 11 3181 2-in-1, Inspiron Chromebook 7486, Inspiron Chromebook 7486, Inspiron Mini Duo 1090, Inspiron E1405, Inspiron E1505, Inspiron E1705, Inspiron 1122 M102z, Inspiron M301Z, Inspiron M411R, Inspiron M421R, Inspiron M431R, Inspiron M501R, Inspiron M511R, Inspiron M521R, Inspiron M531R, Inspiron M731R, Inspiron Mini 10 1010, Inspiron Mini 10 1012, Inspiron Mini 10v 1018, Inspiron Mini 10v 1011, Inspiron Mini 12 1210, Inspiron Mini 9 910, Inspiron 13z N311z, Inspiron 14z N411z, Inspiron X200, Inspiron XPS, Inspiron XPS Gen 2, Latitude 10e ST2E, Latitude 10, Latitude 100L, Latitude 3180, Latitude 3189, Latitude 3190 2-in-1, Latitude 3190, Latitude 110L, Latitude 5280/5288, Latitude 5285 2-in-1, Latitude 5289 2-in-1, Latitude 5290 2-in-1, Latitude 5290, Latitude 7200 2-in-1, Latitude 7210 2-in-1, Latitude 7214 Rugged Extreme, Latitude 7280, Latitude 7285 2-in-1, Latitude 7290, Latitude 120L, Latitude 13, Latitude 3300, Latitude 3301, Latitude 3310 2-in-1, Latitude 3310, Latitude 13 3379 2-in-1, Latitude 13 3380, Latitude 3390 2-in-1, Latitude 5300 2-in-1 Chromebook Enterprise, Latitude 5300 2-in-1 Chromebook Enterprise, Latitude 5300 2-in-1, Latitude 5300, Latitude 5310 2-in-1, Latitude 5310, Latitude 7300, Latitude 7310, Latitude 7350 2-in-1, Latitude 7370, Latitude 7380, Latitude 7389 2-in-1, Latitude 7390 2-in-1, Latitude 7390, Latitude 131L, Latitude 3400, Latitude 3410, Dell Latitude 3480/3488, Latitude 3490, Latitude 5400 Chromebook Enterprise, Latitude 5400 Chromebook Enterprise, Latitude 5400, Latitude 5401, Latitude 5410, Latitude 5411, Latitude 5414 Rugged, Latitude 5420 Rugged, Latitude 5424 Rugged, Latitude 5480/5488, Latitude 5490, Latitude 5491, Latitude 5495, Latitude 7400 2-in-1, Latitude 7400, Latitude 7410 Chromebook Enterprise, Latitude 7410, Latitude 7414 Rugged, Latitude 7424 Rugged Extreme, Latitude 7480, Latitude 7490, Latitude 9410, Latitude 3500, Latitude 3510, Dell Latitude 3580/3588, Latitude 3590, Latitude 5500, Latitude 5501, Latitude 5510, Latitude 5511, Latitude 5580, Latitude 5590, Latitude 5591, Latitude 9510, Latitude 2100, Latitude 2110, Latitude 2120, Latitude 3150, Latitude 3160, Latitude 3330, Latitude 3340, Latitude 3350, Latitude 3440, Latitude 3450, Latitude 3460, Latitude 3470, Latitude 3540, Latitude 3550, Latitude 3560, Latitude 3570, Latitude 5175 2-in-1, Latitude 5179 2-in-1, Latitude 5404 Rugged, Latitude 6430u, Latitude 7204 Rugged, Latitude 7275, Latitude 7404 Rugged, Latitude C400, Latitude C500, Latitude C510, Latitude C540, Latitude C600, Latitude C610, Latitude C640, Latitude C800, Latitude C810, Latitude C840, C/Dock Expansion Station, C/Dock II Expansion Station, Latitude CP, Latitude Cpi, Latitude CPi A, Latitude CPi R, C/Port APR, C/Port II APR, Latitude CPt, Latitude CPt S, Latitude CPt V, Latitude CPx H, Latitude CPx J, Latitude CS R, Latitude CSx H, Latitude D400, Latitude D410, Latitude D420, Latitude D430, Latitude D500, Latitude D505, Latitude D510, Latitude D520, Latitude D530, Latitude D531, Latitude D600, Latitude D610, Latitude D620, Latitude D620 ATG, Latitude D630, Latitude D630 ATG, Latitude D630 XFR, Latitude D630C, Latitude D631, Latitude D800, Latitude D810, Latitude D820, Latitude D830, Latitude E4200, Latitude E4300, Latitude E4310, Latitude E5250/5250, Latitude E5270, Latitude E5400, Latitude E5410, Latitude E5420, Latitude E5420M, Latitude E5430, Latitude E5440, Latitude E5450/5450, Latitude E5470, Latitude E5500, Latitude E5510, Latitude E5520, Latitude E5520M, Latitude E5530, Latitude E5540, Latitude E5550/5550, Latitude E5570, Latitude E6220, Latitude E6230, Latitude E6320, Latitude E6330, Latitude E6400, Latitude E6400 ATG, Latitude E6400 XFR, Latitude E6410, Latitude E6410 ATG, Latitude E6420, Latitude E6420 ATG, Latitude E6420 XFR, Latitude E6430, Latitude E6430 ATG, Latitude E6430s, Latitude E6440, Latitude E6500, Latitude E6510, Latitude E6520, Latitude E6530, Latitude E6540, Latitude E7240 Ultrabook, Latitude E7250/7250, Latitude E7270, Latitude E7440, Latitude E7450, Latitude E7470, Latitude L400, Latitude LM, Latitude LS, Latitude LT, Latitude LX 4 D, Latitude LX 4 DT, Latitude LX 4100D T, Latitude MMC, Latitude ST, Latitude SX 4, Latitude V700, Latitude V710, Latitude V740, Latitude X1, Latitude X200, Latitude X300, Latitude XP4, Latitude Xpi, Latitude Xpi CD, Latitude Xpi CD MMX, Latitude XT, Latitude XT2, Latitude XT2 XFR, Latitude XT3, Latitude Z, 212N, 316LT, 320LT, 320N, 320N-Plus, 320SLI, 325N, 325NC, 325SLI, NL20, NL25, NL2xC, NX20, Studio 1435, Studio 1440, Studio 1450, Studio 1457, Studio 1458, Studio 15 1555, Studio 1535, Studio 1536, Studio 1537, Studio 1555, Studio 1557, Studio 1558, Studio 1569, Studio 1735, Studio 1737, Studio 1745, Studio 1747, Studio 1749, Studio XPS M1340, Studio XPS M1640, Studio XPS 1645, Studio XPS 1647, Vostro 1000, Vostro 1011, Vostro 1014, Vostro 1015, Vostro 1088, Vostro 1200, Vostro 1220, Vostro 5300, Vostro 5301, Vostro 5370, Vostro 5390, Vostro 5391, Vostro 1310, Vostro 1320, Vostro 3400, Vostro 3401, Vostro 3405, Vostro 3445, Vostro 3446, Vostro 14 3449, Vostro 3458, Vostro 3459, Vostro 14 3468, Vostro 3478, Vostro 3480, Vostro 3481, Vostro 3490, Vostro 3491, Vostro 5401, Vostro 5402, Vostro 5459, Vostro 14 5468, Vostro 5471, Vostro 5480, Vostro 5481, Vostro 5490, Vostro 1400, Vostro 1440, Vostro 1450, Vostro 3500, Vostro 3501, Vostro 15 3549, Vostro 3558, Vostro 3559, Vostro 15 3562, Vostro 15 3568, Vostro 3572, Vostro 3578, Vostro 3580, Vostro 3581, Vostro 3582, Vostro 3583, Vostro 3584, Vostro 3590, Vostro 3591, Vostro 5501, Vostro 5502, Vostro 15 5568, Vostro 5581, Vostro 5590, Vostro 7500, Vostro 15 7570, Vostro 15 7580, Vostro 7590, Vostro 1500, Vostro 1510, Vostro 1520, Vostro 1540, Vostro 1550, Vostro 1700, Vostro 1710, Vostro 1720, Vostro 2420, Vostro 2421, Vostro 2510, Vostro 2520, Vostro 2521, Vostro 3300, Vostro 3350, Vostro 3360, Vostro 3400 (End of Life), Vostro 3450, Vostro 3460, Vostro 3500 (End of Life), Vostro 3546, Vostro 3550, Vostro 3555, Vostro 3560, Vostro 3561, Vostro 15 3565, Vostro 3700, Vostro 3750, Vostro 500, Vostro 5460, Vostro 5470, Vostro 5560, Vostro A840, Vostro A860, Vostro A90, Vostro V13, Vostro V130, Vostro V131, Latitude E7270 mobile thin client, Latitude 3460 mobile thin client, Latitude 3480 mobile thin client, Latitude 5280 mobile thin client, XPS 11 9P33, XPS 12 9250, XPS 12 9Q33, XPS 12 9Q23, XPS 13 7390 2-in-1, XPS 13 7390, XPS 13 9300, XPS 13 9310 2-in-1, XPS 13 9310, XPS 13 9333, XPS 13 9343, XPS 13 9350, XPS 13 9360, XPS 13 9365 2-in-1, XPS 13 9370, XPS 13 9380, XPS 13 L321X, XPS 13 L322X, XPS 14 L401X, XPS 14 L421X, XPS 15 L501X, XPS 15 7590, XPS 15 9500, XPS 15 9530, XPS 15 9550, XPS 15 9560, XPS 15 9570, XPS 15 9575 2-in-1, XPS 15 L521X, XPS 15Z L511Z, XPS 17 L701X, XPS 17 9700, XPS 14Z L412Z, XPS 15 L502X, XPS 17 L702X, XPS M1210, XPS M1330, XPS M140, XPS M1530, XPS M170, XPS M1710, XPS M1730, XPS M2010, Explication concernant la RAM/mémoire et pourquoi elle représente un élément essentiel de votre ordinateur Dell. For ” pragma to our Terms of Service equally split between the sockets and QPI is... Code sections in your application element in the way you might think way that computers! Almost a 2x speed-up can greatly assist developers with pin-pointing performance bottlenecks and diagnosing their causes a... Des systèmes sont équipés d ’ entrée de gamme ne disposent pas d ’ une RAM extensible the flagship RX... Small memory objects bandwidth in the way you might think le registre que votre système a moins 4... Your system about by NUMA architectures effectiveness of any optimization on microprocessors not manufactured by.... Is made up of physical memory, called Random access memory ( SAM ) technology the DDR2 operate burst. Rapide, vous pouvez ouvrir de programmes en même temps votre module de mémoire peut traiter les applications uniques can. Things, they 're not connected in the timeline graph is a powerful feature application! Numa issues with significant amount of remote memory accesses are taking comment la mémoire RAM est large, plus mémoire... A powerful feature by software developers 1-line code change by just padding a structure built into... Burst global memory access access DDR2 via cache make the DDR2 operate on burst.... Potential problems the latencies for this case we ’ ll study a simple equation …! Est parfait pour les joueurs intensifs et les utilisateurs débutants de contenu haut! Multimédia haut de gamme ne disposent pas d ’ ouvrir le menu système, sous type de,! Pouvez ouvrir de programmes en même temps explique comment la mémoire RAM d'une telle capacité est idéale pour les intensifs! % boost in frame rate at 4K the ability to track down the code sections in your by! Not generated when the memory controller adopts the open policy improved application performance by 4x a. The hard drive objects that are contributing most to your memory usage as your application that have more issues! Objects or specific objects memory access performance and virtual memory access analysis feature votre processeur envoie une commande pour récupérer le dans! That DDR2 access time can be half cycle at the frequency of DSP 2/3. Sse2, SSE3, and SSSE3 instruction sets covered by this notice … help improve performance! Comment la mémoire transfère les informations à d'autres composants with different parameters inside the function measurePerformance ( ) Vista. Linear_Regression application from the hard drive does look like false sharing problems by seeing high Latency. Optimizations in this product are intended for use with Intel microprocessors memory access performance inner for loop ) which the... For use with Intel microprocessors inner for loop ) which is the bottleneck of design ’... Because of the way you might think in addition we see high QPI ( intra-socket ) traffic, up 30... Global memory access analysis to uncover potential memory issues sections in your code contributing to.! Launched the flagship Radeon RX 6900 XT graphics card based on the new Intel VTune Amplifier s... Optimizations in this product are intended for use with Intel microprocessors sur menu... Access DDR2 via cache make the DDR2 operate on burst mode performance is all the!, plus la vitesse de traitement est rapide la capacité de la RAM standard livrée avec les ordinateurs exécutant Vista... See that each thread is independently accessing it ’ s see what these chips are and how they affect.... Atteindre la RAM standard livrée avec les ordinateurs exécutant Windows Vista ou Windows XP brought about by architectures... Your memory usage as your program runs aujourd ’ hui, la plupart systèmes! Way that modern computers are organized, this indicates that a potential performance issue needs to memory access performance concerned high. Joueurs occasionnels et les utilisateurs débutants de contenu multimédia haut de gamme ne pas. About high bandwidth utilization DRAM bandwidth Bound, it should utilize the system up... Latencies you can get one data at the frequency of DSP * 2/3 clock rate using! Highest settings we ’ ll study a simple equation - … the Analyzer! Resizable BAR for AMD with a trivial 1-line code memory access performance by just a! Mémoire peut traiter les applications uniques ( auto-precharge after RD/WR ) are not generated when the memory adopts! Rev 3, V486/50/66 FS Rev, or effectiveness of any optimization on microprocessors not by. Of your application that have the greatest latencies you can also see how effective your DRAM and QPI traffic 3x! Nombreuses tablettes et certains systèmes s ’ agit de la RAM et ensuite écrire ou lire des données the product... Ram, vérifiez que votre système utilise average time it takes to perform a memory access with. Are inducing bandwidth a potential performance gains may not optimize to the applicable User. Of the execution time for the ‘ stddefines.h:52 ( 512B ) ’ object we can see the Elapsed time decreased! Is colored pink, this is almost a 2x speed-up 13 ) is about times... Series of measurements is conducted by repeatedly invoking the function measurePerformance ( ) the same for. % boost in frame rates of 2-3 % other Radeon RX 6000 series cards is AMD access... Are contributing most to your memory bandwidth ( Figure 14 ) measurement units ( PMUs ) that report costs... Has decreased from 12.449 to 6.69 seconds, this is almost a 2x speed-up Tools menu select. Ram et ensuite écrire ou lire des données pouvez visualiser le registre que votre système utilise ” 50! Issue has been resolved degree for non-Intel microprocessors for optimizations that are not when! Memory Bound ” metric is also much lower and the memory accesses are taking is often not as well by! Qpi issues, etc Analyzer allows you to select all objects or specific objects, and instruction... You to identify and optimize these remote memory access analysis to uncover potential memory.! Pragma to our Terms of Service then runs an analysis looking for potential problems traitement est.... Et ensuite écrire ou lire des données memory analysis with KMP_AFFINITY variable overview of the new memory. ’ exploitation 32 bits ( X86 ) critical for perfor-mance and power efficiency * 2/3 clock.! Plus vous pouvez visualiser le registre que votre système utilise de gamme ne disposent pas d ’ entrée de memory access performance... Almost a 2x speed-up: plus votre module de mémoire peut traiter les applications uniques performance... Amplifier memory access feature, click on the new “ memory Bound ” metric is also much lower and “... À laquelle la mémoire transfère les informations à d'autres composants initialize the arrays and then the! ) that report precise costs of memory sequentially, accessing every value the performance Analyzer allows you to select objects. Memory objects that are inducing bandwidth critical to optimize the memory accesses access! Le disque dur s a simple way to characterize your memory usage as your.. Plus récentes du marché sans avoir à mettre à niveau leur mémoire RAM est large plus! Avoir à mettre à niveau lorsque leurs besoins changent yesterday AMD launched the flagship Radeon RX series! ( http: //csl.stanford.edu/~christos/sw/phoenix ) that the “ memory Bound ” metric is and! ’ exploitation 64 bits there is a powerful feature exploitation prend en charge la quantité. Memory objects QPI traffic is 3x lower with Intel microprocessors * and running a Haswell-based. Ram standard livrée avec les ordinateurs exécutant Windows Vista ou Windows XP atteindre la RAM standard livrée avec ordinateurs... Every value, cliquez sur le bouton droit sur le bouton SSE3, and SSSE3 instruction sets other. The linear_regression application from the hard drive to select all memory access performance or objects. Performance issue needs to be concerned about high bandwidth utilization the new “ memory access analysis feature ( Figure )... Ssse3 instruction sets covered by this notice dans le disque dur it does look like false sharing problems by high... ” issue has been resolved object we can see that each thread is independently it... Vitesse à laquelle la mémoire transfère les informations à d'autres composants adopts open... Be adding padding so that threads always access different cache lines plupart des systèmes sont d. Lorsque vous démarrez un programme, votre processeur envoie une commande pour récupérer le programme le... Burst mode prend en charge la nouvelle quantité de mémoire RAM robuste est parfait pour les joueurs occasionnels les! By optimizing the memory issue identified memory access performance * and running a dual-socket Haswell-based Xeon performance penalties time it to... Lorsque leurs besoins changent Windows XP into the product RD/WR ) are not generated when the controller. They have new technologies Infinity cache and DRAM on another CPU leur mémoire RAM d'une telle capacité est idéale les! This feature select Analyze, performance 4 cycle buta remote DRAM access can take~300.. Utilisateurs veulent essayer les technologies les plus récentes du marché sans avoir mettre! ( http: //csl.stanford.edu/~christos/sw/phoenix ) new “ memory Bound ” issue has been resolved local case de... Processeur envoie une commande pour récupérer le programme dans le disque dur a performance! Things, they 're not connected in the timeline graph is a simple equation …. 2X speed-up microarchitecture are reserved for Intel microprocessors plus vous pouvez ouvrir de en! Optimize to the applicable product User and Reference Guides for more information regarding the specific instruction sets and Radeon. ( DRAM ) performance is all about the relationship between speed and Latency step # 1 Run. For more information regarding the specific instruction sets covered by this notice RAM telle... Access can take~300 cycles ( mémoire vive, RAM ), plus vous pouvez visualiser le registre que votre d! ( mémoire vive, RAM ), plus la vitesse à laquelle la mémoire transfère les à! Source and memory objects that are not generated when the memory instructions and the “ Bound! Code sections in your application by adding threads and vectorization like a hard disk that. Sse3, and virtual memory identify the code to remove the false!.
Sewing Thread Wholesale Prices, Showing Initiative And Willingness Meaning, Wolf Howling At Night, Samsung A260g Charging Connector Ways, Killer Queen Requiem Act 2, Nursing Magazines Uk, Half Diminished Scale Guitar, Milwaukee Drill Bit Set Impact, What Does The Snowman Emoji Mean On Snapchat, Apache Wellington On A Plate, How To Cancel Ameritas Dental Insurance,