For questions concerning computer, or computer-related, performance. Please include metrics in your questions.

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How to analyse disk performance issues visible in Windows Resource Monitor?

I'm using Windows Resource Monitor and I observe poor response times of >250ms. I know which application is ultimately requesting the files, but the disk access is monitored under the System process. ...
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42 views

Is there a performance improvement when considering partition size during HDD partition?

I am having a 320GB (298GB usable) HDD. I want to partition it. Generally, Is there a recommended fixed size for partitioning so as to get more performance? Like in what case will the performance ...
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61 views

Deleting a folder with huge number of subfolders is very slow in Windows

I have a hierarchy of folders (millions of them) and I want to delete the parent node. It's OK and it gets deleted. My CPU usage becomes 100% on all logical cores, but the memory doesn't complain and ...
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13 views

Samsung 530U4E ultrabook ultraslow

I have a 530U4E samsung ultrabook but this computer is desperately slow. Every application I launch takes sometimes incredible amounts of time (firefox needed a minute to launch) I recently upgraded ...
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23 views

Benchmarking a process to run on another server

I am not too sure if there's a simple answer to this. At the moment, I have a Linux process. I can monitor this process like any other and see it's CPU/Memory utilisation. How would I be able to ...
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158 views

Chrome scrolling stutters on Macbook Pro 13 (2015) and doesn't on old iMac 2011

I have an iMac from 2011 with AMD Radeon HD 6770M 512 MB and I just bought a new Macbook Pro (early 2015) with Intel Iris Graphics 6100 1536 MB. I enter the same page on both computers on Chrome and ...
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40 views

Lightweight OS for Acer 5532

I have this old laptop with the following specification: Processor: 1.6GHz AMD Athlon 64 TF-20 Ram : 3GB DDR2 SDRAM 800MHz Storage : 160GB at 5,400rpm Graphics : ATI Mobility Radeon HD 3200 ...
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30 views

Read Speed 50% Slower Than Expected

have an issue with our internal network that I’ve been trying to troubleshoot for the past two days with no luck, wondering if I can get any answers or ideas that we haven’t thought of yet. We have a ...
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17 views

What programs are most affected by slow write speeds?

I'm specifically referring to "power user" programs that will be slowed significantly or crash as a result of slow write speeds. I will most likely make use of Serato DJ, Adobe Illustrator, XCode, ...
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45 views

Hard drive usage very high all the time

I have a problem with very high hard drive usage. Computer of my colleague (Sony VAIO) was working very slowly, it had Windows 10 Technical Preview, so I had to reinstall system. I installed Windows 8 ...
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71 views

2 Separate servers running Windows Server 2012-R2 are suddenly very slow

Alright, so this problem has me stumped. We occasionally provide remote assistance to some of our customers, most often using Team Viewer. Yesterday morning, one of our customers reported that our ...
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48 views

What does “losing a second of transactions” mean in MySQL?

Setup: Homeserver with Owncloud using MySQL as database. Problem: I/O on server HDD slows sync down to several days per 70k small files. Solution: ...or at least a workaround that I found is to ...
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42 views

How to tell how much swap a Windows process actually uses?

In Windows 8.1 x64, I'm running a VBox machine that is configued to use 5200MB RAM. The host OS has 16GB of RAM, however often the other open programs add up and fill up the memory. My theory is that ...
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130 views

Slow Speeds over Wi-Fi

I have cable Internet that averages about 35 MB/sec down and 7MB/sec up, but been having intermittent Wi-Fi problems for several months now. I’ve changed my router a couple times to no avail. I’m ...
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24 views

Is NBTI CPU aging, and how does it affect a PC under normal conditions?

There was a question here on SU, if a CPU can age: Is the performance of a CPU affected as it ages? the answer in short No I read a newspaper article (unfortunately in German) referencing a research ...
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56 views

Homedir via NFS: How to improve performance?

I would like to improve the login speed on my NFS clients. Just logging in via lightdm and starting KDE takes approx 35 seconds. Could be somewhat faster, no? One option would be to improve NFS ...
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127 views

Will using the dedicated graphics card improve performance?

I have a HP 1000-1205TX Notebook PC which has a Intel® Core™ i3-2328M Processor and AMD Radeon HD 7450M (1 GB DDR3 dedicated) graphics card. The processor also has integrated graphics. I am running ...
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23 views

Single Hypervisor storage deduplication using a filer VM : performances

I'm looking forward to use a dedicated server as an hypervisor using VMware ESXi, and I would like to find a way to have storage deduplication and save some disk space. The idea would be to create a ...
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46 views

Browsers Causing CPU Thrashing

Whether I use Chrome or IE my CPU starts to go crazy. I'm not sure what kind of web content causes this. Streaming? I have a fresh install of Windows 7 x64 and I'm using IE 11 and Chrome ...
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47 views

Difference in Mac Pro processing power / Understanding GeekBench scores

I have heard that GHz is not any longer a valid measure of CPU speed, but then is CPU speed and number of cores a reliable measure of CPU power? I generally read on the net, "well, it depends what ...
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21 views

What is theoretical max benefit from read speeds under RAID5?

I have a 5 drive RAID5 with mdadm. When I do hdparm -Tt on all the constituent drives I find the slowest is about 230MB/s. Is the maximum theoretical limit of read speeds going to be (5-1)*230 or ...
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41 views

Something is blocking and slowing Windows 7 down when I loose the network connection

I've experienced this multiple times on various Windows installations on various work related devices. Sometimes when my laptop looses it's connection to the Intranet, the whole systems seem to hang. ...
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34 views

Never reach smooth, constant 60 fps in 3D applications regardless of graphics settings

I have a Radeon R9 290 (though this also happened on my previous card, a 6850) and it seems that only a select few games run at a constant, smooth 60fps. This has no relation to graphics settings as ...
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85 views

How do I capture multiple and specific processes performance user logman/perfmon?

Currently I have created a logman counter to monitor an entire system using the following command: logman create counter genericLogging -o C:\PerfLogging\data.blg -f bincirc -c "\LogicalDisk(*)\% ...
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366 views

Slow Gnome shell?

it's been a few days that my Fedora 22 is acting really slow. When I write text, it takes a few ms to appears, the mouse moves by jumps (not smooth). I have rebooted the computer multiple times, it's ...
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125 views

XPERF View - Unknown process at svhost.exe flushing Disk

I have followed instructions to detect performance problems in Windows 7 by using Windows Performance Toolkit (xbootmgr and xperfview as shown here). The reason is because I still do not understand ...
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61 views

Keep smooth desktop slideshow transition without other animations in Windows

I like to disable animations in Windows at work because it feels a lot lighter and faster, so I have the following configuration: However, I also have multiple wallpapers that change every hour ...
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51 views

Microsoft, Revit and Photoshop are slow on my HP ENVY 15 TouchSmart. Any suggestions to improve?

I am trying to use Microstation, Revit and Photoshop in my laptop but even though I would expect I to go super smooth I need to spend time waiting for it to respond. My laptop is an HP ENVY 15 ...
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27 views

Router internet suddenly failed

My router is a Netgear Nighthawk R7000. Going to routerlogin.com has been slower and slower recently, going from instant loading of settings to taking 10-15 seconds on every page, failing to load the ...
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43 views

Accessing local pages results in “waiting for localhost” for a few seconds each loadtime with MAMP

I've researched already but never found the solution, only that it might have to do with the name resolution in osx bonjour. Problem is i am running MAMP 3.4 in the normal version for local web ...
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64 views

Exteremly Slow Microsoft Excel operation in LENOVO G550 series Laptop; Shall I add more RAM?

I am doing complex Macro operations in Excel 2007/2013 which generates random numbers and does many multiplications/divisions in each cell value. It also copies data to multiple worksheets and text ...
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16 views

Entire network sluggish after virus

I am almost positive that I got a virus from en.savefrom.net, although both Windows Defender and Avast found nothing. The Internet has become sluggish for all devices on the network, including PCs, ...
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60 views

How can I create a RAM disk and install Firefox into it?

I've a Fedora 22 64-bits system running under a notebook with Intel Core i3 processor and 7.7GB of RAM. I only use about 2~3GB of RAM (with everything I need) and I want to speed up my system, so I've ...
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863 views

Often mouse stutter on windows 10

I have a really annoying issue where windows 10 freezes/stutters almost every second for a small period of time. It's best noticeable when I move my mouse around in circles. As the mouse moves, every ...
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58 views

Is there a pentium equivalent of any i-series processor?

I have a confusion with speed of processors and I want to know what makes say, i3 faster than pentium processor which pentium doesn't have? If we add more GHz to pentium will it be same as i3 in some ...
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23 views

How to choose graphics card update (for 3D Vision gaming)

I have a fairly-decent gaming computer at home but I am not satisfied about its performance on Far Cry 4 with 3D Vision enabled. Even at 720p@24Hz resolution the game becomes often laggy. Surely my ...
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277 views

Router getting ridiculously slow internet connection on 2.4GHz band

I've got an ASUS RT-AC68U router which is performing perfectly fine at 5GHz. However, download speeds don't get faster than 25kbps on the 2.4GHz band. I have a 10mbps broadband Internet connection. ...
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20 views

Handling exported reports from BI portal in Excel 2010 causing performance issues?

So, I'm going to try to describe this the best I can. Multiple uses at my office will often export large reports from the BI system of the SAP web portal. These files can be as large as 25-50mb, ...
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59 views

Computer slowed down - no virus/fragmentation issues I can see

OK, here's an obvious question which typically gets the "fragmented drive and/or virus and/or too many programs running" answer. The thing is, I'm not a dummy (I'm a software engineer, although not ...
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47 views

How can Chrome browser cookies cause internet issues?

Alright, so I'll make this as short and concise as possible. I have both DishNET and mobile data/hotspot for internet. I noticed DishNET was really slow today(I would estimate less than 5KB), so I ...
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53 views

Internet is slow on some websites: Can't login to StackExchange using Google account

I recently switched to windows 8.1 (64 bit) on my new laptop. While the internet for some websites is fast enough, but it slows down on some other websites and even doesn't open them, for example I ...
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214 views

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 like ***. I have my Samsung 850 evo ssd FULLY USED then it's now ...
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197 views

Native Windows Libraries Under Wine

As we know, Wine has the ability to run windows native Dlls instead of it's own library files. For example you can use the original d3dx9.dll instead of wine's own d3dx9.dll implementation. Does ...
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43 views

Slow-down of Web Applications due to Windows DPI Scaling?

I have increased DPI scaling from 100% to 125% to improve display readability. The result looks quite pleasant on my 24" screen (resolution 1920 x 1200). Now, a colleague warns me that certain web ...
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18 views

Data transfer in sql server 2008

I have following requirement In SQL server 2008,Trying to implement in stored procedure source table T with 100000 records need to be insert into destination table T1.A Job will be schedule for ...
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154 views

Windows 8.1 Slow startup for 16GB RAM

I have lenovo Y50 laptop with 16GB RAM and 1TB hdd, When I start system, or start from hybernet mode, It consumes 100% HDD usage for 5-7 minutes, after digging this issue, I got the root cause is ...
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111 views

Getting best performance out of a virtual machine

Host Machine: Windows 8.1 Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz 2.40 GHz RAM: 24GB System Type: 64 bit OS, x84 processor What I've been running as a virtual machine Windows 7 12GB Memory 2 ...
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88 views

Excel performances: INDIRECT+ADDRESS VS CELL+OFFSET

Using Excel I can achieve the same result using two different approaches, here are the formulas: A) =INDIRECT(ADDRESS(5+MATCH($A$16,Aliquote!$A$5:$A$15,0),1,1,1,"Aliquote")) B) ...
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84 views

Large TTFB on Vagrant

I have a ttfb of approximately 15-20 seconds on a VVV vagrant install. I am using virtual box on windows 7 in case that makes any difference. I have tried reprovisioning and also tried increasing the ...
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19 views

What is the difference between monitoring only one host and cloud?

With the cloud computingtechnology is used very extensively, I am very curious about what is is the difference between monitoring only one host and cloud. For example, I can use top or ps command in ...