Questions tagged [performance]
For questions concerning computer, or computer-related, performance. Please include metrics in your questions.
4,420
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Intel turbo boost - in reality
I have an Intel i7-3630QM processor in my laptop. Its speed is supposed to be from 2.4 to 3.4 GHz in turbo boost mode.
In reality, will it ever run all cores on full speed (3.4GHz mentioned above) ...
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Why does my laptop's CPU intermittently run REALLY slow?
My laptop's CPU is an Intel P8400, rated for operation at 2.26GHz.
However, sometimes it starts running really slow: the computer becomes nigh unusable, and utilities like CPU-Z show clock speeds in ...
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What can go wrong if I put more RAM on a computer than it's processor supports according to Intel ARK?
I have recently aquired a PCBOX Kant 4 ; a very basic computer that just works for the work I do and everyday use.
So far I pleased with it, it performs much better than I expected (I guess stuff ...
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Why do smartphones have up to eight cores but many laptops still only have two? [closed]
I have been looking at buying a new smartphone as well as a new laptop. What has struck me as odd is that many smartphones now have quad cores or even octa cores, yet many laptops still only use dual ...
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Enabling Intel HD Graphics can increase memory speed?
I found that enabling Intel HD Graphics in device manager can increase memory speed about 17%. I also used Prime95 to test memory speed, and same result is found. (Prime95 results are highly dependent ...
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Raid 0 Performance Decreased
I was trying to understand the performance benefits of RAID. I created 4 virtual disks in Windows 10 (10 GB each). I then set up 2 of them as Stripped volumes and the other 2 as spanned volumes. Now I ...
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How to load entire process memory from swap quickly (linux)?
I run a bunch of CPU-hungry processes in parallel; they normally use a few GB of memory each. From time to time they allocate large amount of memory too (say 150-250GB). Usually at most one of the ...
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Show dial up connection status in Task Manager
In Windows 8.1, Task Manager shows Wi-Fi, Disk, CPU usage graph in Performance tab. But, it doesn't shows usage of a dial up internet connection. How can I add dial up stats in task manager.
Here are ...
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RAID 5 degraded performance
I'm currently rebuilding my fileserver, but because of SATA port limitations, I can only use 5 disks at a time. I've remove a drive from my original RAID, so I've been able to create a new degraded ...
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Is one core of an i7 much faster than a Core 2 Duo core at the same clock speed? [closed]
Since the app I'm running runs only as a single process, it only uses one core.
I have a Core 2 Duo 2.4 GHz now. I'm wondering if I purchased a Core i7 2.4 GHz, would it usually complete general CPU ...
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Why is the CPU Usage History pane "split" in Windows Task Manager / Performance
In Windows Task Manager, under the Performance tab, Page File Usage History is shown in a continuous pane, while the CPU Usage History is split up into 8 narrow panes, which make it look like the ...
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Install 64-bit Ubuntu or 32-bit?
I'll be receiving a new notebook in a few days and was planning on running Ubuntu on it as it's compatible and the notebook has no OS pre-installed. The specifications are: Core 2 Duo, T6600, 4 GB ...
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Why would CrystalDiskMark report a drive as faster (in some tests) with bitlocker on?
I have a cheap Linx 10v64 tablet - Intel Atom x5-z8300, 4GB RAM, 64 GB eMMC module.
I am considering enabling bitlocker on the main (OS) drive but am concerned about the effect on performance given ...
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Robocopy and fragmentation
While copying large number of files, it's quite often to use multiple threads with RoboCopy (/MT[:n] option). Can this cause fragmentation on the destination drive? Sometimes I use Beyond compare for ...
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Will the performance of my Laptop increase if I migrate from Ubuntu 14.04 32 bit to 16.04 64 bit?
I have i5-3230M CPU @ 2.60GHz processor and 8GB RAM
in my Thinkpad T530 laptop.
Normally I have 6-7 pinned (gmail, whatsapp, slack, keep etc) and up to 10 open tabs in Chrome, virtualbox with ...
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High non-paged pool with no stack specified
So, I followed a guide https://superuser.com/a/988819/662442 to trace a non-paged leak of 4Gb of RAM. In vain. After loading symbolds, no stack is shown for my tag. I can't find any clue as to what to ...
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Windows 7 mysterious memory usage
I am using a windows 7 machine to play a game, among other things, which was running smoothly for years, up until now. It's not a big problem but sometimes I notice drops in fps from 60 to 40 for a ...
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Windows 10 working poorly
I have Windows 10 insider (technically now it's not an insider anymore but let's say that beta) and some days ago it started working poorly.
I have my Samsung 850 EVO SSD fully used then it's now ...
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Why is my computer so slow when copying lots of small files from an external drive to another [duplicate]
Using Linux, I am copying with rsync 60Gb of files cut in very small files (1MB each)
I thought copying would be limited by the maximum writing speed of the destination hard drive but it seems my ...
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Windows 7 64bit - terrible performance, CPU only running at 800 MHz
My relatively new i7-4790K @ 4.00GHz has been exhibiting terrible performance since I bought it a few months ago.
The machine feels extremely sluggish. CPU utilization at rest, as reported by ...
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What is the difference in instruction completion rate, instruction throughput, instructions per clock? [closed]
From what I understand:
ICR (Instruction Completion Rate): Is (# of instructions / time)
Instruction Throughput: Is usually an average of the number of instructions completed each clock cycle.
IPC (...
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Will an SSD keep a computer from slowing down over time?
Will a SSD keep a computer from slowing down over usage compared to a computer with a mechanical hard drive?
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Game is very slow to load when computer is starting
One of a game I play (Overwatch, not to mention it) is very slow to load when the computer, using windows 10 x64, has been started for less than [at least] 5 to 10 minutes. VRAM usage is really low ...
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Maximum RAM size bottleneck in i5-750 CPU with GA-P55-UD2 motherboard, can I tweak this to accept 32gb?
So I have a somewhat dated CPU (i5-750) and motherboard (GA-P55-UD2 rev 1.0) that are spec'd up to 16gb RAM, but that was when 8gb RAM sticks did not exist. I have read one thread where two users with ...
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Performance of RAMFS
I am profiling some computation (video transcoding) on large datasets. Since I did not want my results to be influenced by I/O time (the system I am using has old/slow spinning disks) I though that ...
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Does larger RAM mean higher CPU performance?
While doing a School exam paper I saw the question:
State two characteristics, other than size of cache memory, that can improve performance of CPUs.
I answered:
Number of cores - Correct ✓
Size ...
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Which would be better to overclock VRAM or GPU for gaining performance boost?
I have an AMD Radeon HD7750 Saphire 1GB GDDR5 Edition which is getting pretty outdated and I don't have enough money to get another video card.
To solve this I started OC-ing it using CCC.
The thing ...
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Does the CPU TDP value reflect the same power usage even if the clock speeds are different?
Okay guys, so the new Macbook Pro's just got released yesterday. Apple make it difficult, but I can reverse-engineer the CPU models from their limited spec-details...
So I can get a i7-6920HQ, or a ...
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Can you help me solve Windows 10 strange performance issue
I have this really strange performance problem with Windows 10. And I am not entirely sure what is causing it.
When ever I boot my computer up after it's been off for some time, and load in... if I ...
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SSD upgrade underperforming
I upgraded my Windows 7 PC from a Samsung Spinpoint F4EG HD204UI HDD to a SanDisk Pulse SDSSDP-128G-G25 SSD but, unlike seemingly everyone else in the world, I have never noticed a performance ...
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Consistent, brief graphics freezing/stuttering in online games only
I have been having issues with this for months now and every customer support I've contacted has given up on me. I thought maybe I could get help here.
Problem description
Since June, in my online ...
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How do I optimize MySQL Server for better performance? [closed]
Recently I had to work with a legacy system. Working with it took a lot of my time because many of the tables were not normalized properly. Due to maintenance issues it is impossible to change. My ...
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What is the performance difference of a Virtual Machine vs the Physical host?
Where I work we are running relatively powerful PCs using the Debian Linux Distribution. However for certain programs which we need to install it would be better to have CentOS and these would be our ...
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Unseeming boot loop on laptop running Windows 8.1
I have an Acer Aspire E1-410 which is running Windows 8. Currently when I turn it on, it takes around 5-10 minutes to boot up and during the boot sequence, it seems that it is stuck on a black screen ...
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Speed with multi-cpu motherboard
I'm looking at building a dual-cpu system, but I was wondering if there were any concerns with bottlenecks that I should be aware of since data is going to two different places now. I know that each ...
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Asus Republic of Gamers 0.75 Ghz speed
I am having troubles with this laptop it runs very slow at 0.75 Ghz.
Windows 10 64bit with all drivers updated.
The power plan of Windows already been set to 100% for both minimum and maximum ...
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Why is piping 'dd' through gzip so much faster than a direct copy?
I wanted to backup a path from a computer in my network to another computer in the same network over a 100 Mbit/s line. For this I did
dd if=/local/path of=/remote/path/in/local/network/backup....
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Firefox bottleneck with lot's of tabs open?
I'm currently using Firefox 28.0 on a windows 7 system on a SSD. Sometimes, when I do some research, I open about 180+ tabs on my machine. This makes firefox super slow, without using the SSD or CPU ...
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What explains the effect of the NB parameter when using the HPL benchmark
I executed the HPL benchmark on different homogeneous 8-node clusters of single board computers.
It is obvious (see figure 1) from the results that the NB parameter has a strong impact on the ...
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Chrome dev tools are slow
When I use Chrome dev tools it is unbearably slow. The scrolling in a source file (JS) takes cca 1s before jumping to next location. Selection of a text in source file takes also cca 1s. I had to ...
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Is my HDD about to die ? (Erratic benchmark results)
From a live USB I got the following results from a hard drive benchmark tool :
The partition is the first out of 3 from a 1TB SATA WD-blue drive, used as storage (no OS running from it).
I have ...
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I've a good graphic card but if I change the quality at YouTube it still stays the same
I am having an issue with the quality of videos or browser games, I guess.
The issue happends as example at agar.io that its first smooth and later it looks like 50 fps or something like and later it ...
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Can the transfer rate of SATA limit the performance of a RAID array?
Let's say I have 4 drives and each of them has a transfer rate (random/sequential,read/write, it doesn't matter for the purpose of this question) of 250Mb/s. I put them in RAID 0. This means that I ...
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Why are my games slower on battery power, even with the power plan set to High Performance?
My laptop is capable of running most games on high settings at decent frame rates. However, if the power cable gets unplugged while I'm playing, the game immediately starts slowing down, even if I'm ...
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Why does Adobe Reader use so much CPU?
I have noticed that every time I open Adobe Reader on my laptop, my cooling fans start revving up. When I open task manager it shows that a background process called Adobe RdrCEF is taking up usually ...
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Windows 10 Task Manager: CPU Speed Rises Above Maximum Speed
I wonder if it Windows 10 changing behaviour in recent major update. I am using Windows 10.0.10586. I am well aware of TurboBoost that mentioned in this SuperUser question. My CPU could hit 2.70GHz in ...
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How to read temperature with Intel Extreme Tuning Utility?
I recently downloaded Intel Extreme Tuning Utility and I've been unable to find where the CPU temperature is displayed. I've even found where to select whether temps are displayed in Fahrenheit or ...
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7200 rpm 6 Gb/s SATA disk on a 3 Gb/s controller
I have a couple of ST500DM002-1BD142 drives (6 Gb/sec interface) on an IHC10 3 Gb/sec interface AHCI-capable controller. Will there be much of the performance improvement if I will switch these disks ...
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Linux Embedded Controller editor
Does anyone know of an Embedded Controller editor for Linux?
I currently use Read & Write Utility
When using Windows to set my fan between 25%-50% because without it my laptop idles at 50°c
When ...
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Why is it so slow to open up a 50 MB text file in a GUI text editor?
I've always wondered why is it so slow to open up a 50 MB text file, either in Notepad++ in Windows or Pluma in Linux.
I have a computer with 16 GB of RAM, can't the OS just put the whole file in RAM ...
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