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

learn more… | top users | synonyms (3)

0
votes
0answers
169 views

Graphics stuttering in 3D Games

Every time I play a game, I experience random stuttering of video and the FPS counter very briefly goes down to 0. This stuttering can be seen in this YouTube video, with the most obvious stuttering ...
0
votes
0answers
92 views

Linux, vim and ssh: why is vsplit slow?

As soon as I have more than one file visible with a vertical split (= :vsplit) the moves and screen refresh become sluggy. I've noticed that on many different Linux systems (old and my very recent ...
0
votes
0answers
257 views

Computer became slow recently

System Specs: Windows 8.1 64-bit Intel Core i7-4700MQ CPU @ 2.40GHz, 8.0GB RAM, Intel HD Graphics 4600 / NVIDIA Geforce 750M GT Computer has been recently slow. This includes startup ...
0
votes
0answers
17 views

My System speed seems slower than the components would predict

I run an Intel 4770k CPU overclocked to 4.6 GHz, 32 GB G-Skills DDR RAM, primary boot drive Samsung 840 SSD, 10 TB auxiliary drives, 3 GB Radeon video, 1000 W PSU, Zalman GS 1200 case with Windows 8 ...
0
votes
0answers
52 views

How can I improve the performance of my audio software?

I am running OtsAV on Windows XP. The way it works is by buffering a small amount of data from the hard drive just before it needs to play it. It used to give flawless sound no matter what else was ...
0
votes
0answers
22 views

Low Memory Performance

I am currently benchmarking some of my code to see where the bottleneck is. My memory is DDR3 1066MHz DualChannel Mode This should result in 17GB/s peak memory performance. With my code I am ...
0
votes
0answers
88 views

why is my sort slower with more ram?

System specs below. I recently purchased 2X4 RAM: Corsair XMS3 8 GB (2 x 4GB) 1333 MHz PC3-10666 240-Pin DDR3 Memory Kit CMX8GX3M2A1333C9 I already had 2X2 in there for a total of 12GB: Corsair ...
0
votes
0answers
69 views

What is fastest way to backup a disk image over LAN?

Sometimes I boot sysrescd or a similar live linux on a PC to backup the hardrive over local network to my server. I noticed many times, that the transfer speed is not optimal (slower than HDD and ...
0
votes
0answers
529 views

Automatic Maintenance Significantly Slows Down Computer

Problem I've found on several occasions that I've gone to use my computer only to find that it's practically unusable; just about everything runs extremely slowly. Symptoms The action center flag ...
0
votes
0answers
150 views

Will IIS8.5 do a better job for WebDAV data sharing than Apache in terms of performance and file locking?

Right now I am using Synology's built-in WebDAV function, which I think is based on Apache server. The issue i am having are basically slow transferring speed and missing file locking ability. The ...
0
votes
0answers
35 views

Excel consuming absurd amount of memmory

I have a excel file consuming a huge amount of memmory, something ~500mb. The file contains only one sheet, no images or scripts and its size is only 719kb. I have checked all suggested solutions ...
0
votes
0answers
169 views

Xcode keeps showing the beachball when I select something

When I select something in the xcode editor and then try to select some other text, the spinning beachball comes up and i have to wait for a couple of seconds before i can continue working. I have the ...
0
votes
0answers
61 views

Windows 8 notebook, 100% disk activity

I don't know what is happening, i have spikes in which the disk activiy goes up to 100% for 10 secs, once every minute or so. During those events I cannot see any process writing or reading from disk ...
0
votes
0answers
17 views

mksquashfs performance depends on CPU load?

I'm trying to realize is mksquashfs performance depends on CPU load? While I'm compress the same data, i'm always get different by md5sum archives. Is this persist in compression size of archive? ...
0
votes
0answers
1k views

Switching between integrated and discrete graphics on alienware 14?

I recently received a new alienware 14 in the mail and was having some issues switching between integrated and discrete graphics. When I used the inbuilt benchmark tests in Just Cause 2 i pulled in a ...
0
votes
0answers
60 views

Clock vs Cache in Gaming

I'm curious, I have two processors laying around that I won't name due to the rules of this site, however, one of them is Quad-Core, with a 12MB L2 cache and a clock speed of 2.67GHz. The other is ...
0
votes
0answers
38 views

Why is the Windows 7/8 translucent selection so laggy?

In Windows 7 (and 8), the translucent selection rectangle is getting slower, 'laggier' as the selection area gets larger. For example, creating a selection area of roughly 1500 x 1000 pixels on the ...
0
votes
0answers
192 views

Computer slow when there is over 8GB RAM

My motherboard is a Sapphire pure black X58, with 6 ram slots ( tri-channel ) and 3x 2GB G.Skill PC12800 PI series on them, and when I received for free 6x 2BG G.skill PC12800 NQ series I wanted to ...
0
votes
0answers
70 views

Slow startup due to event log

My computer takes roughly 10-15 minutes to startup. I found that if I disable Windows Event Log in msconfig that startup is normal again. This is on windows 7. I am guessing that the event log is ...
0
votes
0answers
16 views

About Connection Speed

I have this problem for months and I couldn't solve this. It's really weird problem for me. I have a cable modem NetMaster and additionally TP-Link Router (to extend wireless area). There are three ...
0
votes
0answers
512 views

Windows 8: disk usage is always at 100%

I have noticed recently that my laptop runs slowly. Reason is (as I think) that disk usage is at 100% most of the time. It's also true even when running relatively disk-independent apps. What did I ...
0
votes
0answers
254 views

Poor performance with Ethernet Network Card when transferring files

I am having a performance issue I have not been able to solve and hope you guys can help me with it. I bought a NanoPC (small computer with ARM processor) and I have it running Ubuntu 13.10. It has a ...
0
votes
0answers
78 views

Error on ubuntu server testing - “fio: first direct IO errored.”

I'm working on a VM to test caching algorithms. The tool I've chosen to push IO is fio (click for HOWTO) given its flexibility. What I don't understand is why running on this ubuntu server 14.04 image ...
0
votes
0answers
175 views

USB mouse incredibly slow on brand new laptop

Just purchased a Dell Latitude E6540 with a ~16" screen (Windows 7). The mouse is terribly slow, even after adjusting it in Mouse Properties (Pointer Options -> Motion -> Fastest). To move the mouse ...
0
votes
0answers
43 views

Weird phenomenon about my PC's primary & secondary DNS speed

I use DNS Jumper to test the speed of various DNS and this is the result: (A) Currently Using Primary: 203.144.207.29 (39 ms) Secondary: 8.8.4.4 (71 ms) (B) US Open DNS Primary: 208.67.220.220 ...
0
votes
0answers
69 views

OpenGL rendering affects CPU

I have a problem with an app that is slowed down significantly when an openFrameworks based app is launched. Both apps use little cpu and memory, so i don't think there's a bottleneck. I can ...
0
votes
0answers
76 views

what is the number of operations per cycle for the cortex a57 arm processor?

Im trying to figure out how many double precision operations per cylce a cortex A57 processor can achieve, according to this manual page, there can be upto three instructions per cycle delivered ...
0
votes
0answers
371 views

Sluggish Flash/HTML5 in Firefox 30.0

There are websites that have video playing back in the backround and removethebackground.com is one of those sites. This kind of effect slows browser's response almost to a crawl unless I switch to ...
0
votes
0answers
62 views

Obligatory reset after booting windows, afterwards periodical slowdowns apparent

Whenever I first boot up my PC it needs a hard reset, as it becomes unresponsive immediately after finishing loading Windows (the point where you'd expect to begin working). After this initial reboot, ...
0
votes
0answers
19 views

Making windowed performance same as full-screen?

As you all well know, running software (let's say some demanding game) in a windowed mode drastically reduces the performance of the application (framerate), presumably because of the desktop, ...
0
votes
0answers
256 views

Why does my PC slow down to a crawl when VMware and ntoskrnl.exe is writing to a data drive?

My PC becomes almost unusable when writing to my data drive. The main suspect which exhibits this issue is VMware Player. The problem does not happen when I myself move files in Windows Explorer or do ...
0
votes
0answers
30 views

Windows will not open processes

I recently I come upon an unexplainable issue concerning my Windows 7 partition. When I woke up Thursday morning and logged into Windows, I discovered that it was acting really slow. It didn't take ...
0
votes
0answers
1k views

Slow File Transfer over Gigabit Network

There are a few computers connected to a computer (Windows 7 x64) via a Gigbait network in order to transfer file, however lately the transfer of files has been really slow (11Mb/s) I have already ...
0
votes
0answers
258 views

Toshiba Satellite P850 - Freezing and Stuttering

I've about exhausted all my known options at this point. I own a Toshiba Satellite p850 which was new in 2012. The laptop frequently (several times per minutes) locks up or stutters the entire system. ...
0
votes
0answers
600 views

Computer runs slow in the startup screen and booting of windows, programs fade in and fade out slowly

I think I have the exact same problem that is described here: PC running slow like molasses from BIOS to OS. Everything was working fine, and then suddenly, out of nowhere it took forever to boot my ...
0
votes
0answers
196 views

Windows 7: Slow as can be - Low Resource usage

My main PC is a Dell from 2009 with Win7 SP1 that was originally a Vista machine. I installed a second HDD with Win7 on it and set Vista as the second drive. Its running with an Intel Core Q6600 ...
0
votes
0answers
244 views

Delphi XE2 runs very slow in VirtualBox with Windows 8.1 installed

While the whole guest Windows runs normal, Delphi XE2 is really slow, especially with code completion. And CPU utilization is near 50% though the Delphi itself does not get more than 10% during ...
0
votes
0answers
65 views

Browser downloads are extremely slow

I'm trying to download ProTeXt-3.1.3-060313.exe. When I use my browsers to download it, it downloads about 20KB/s. Than I found torrent file of the same program. I'm downloading it with 1.7MB/s now. ...
0
votes
0answers
146 views

How to get a even higher Fan RPM than “high” with a third party tool or else

Background My laptop gets very hot after its 6 years. I cleaned everything with pressure air and new heat sink, but it didn't helped much. Then, I realized that the built in fan control isn't anymore ...
0
votes
0answers
20 views

Which disk IO operations are typically executed when working with flat preallocated VMDK

I usually pre-allocate whole disk space when creating my VMs and usually as flat single files. Since I'd like to move my VMDK to a different drive than my primary I would like to put it on one that ...
0
votes
0answers
352 views

Cannot download files on Windows 8.1

I can not download files in Windows 8.1. First, downlaod speed decreases to 10-20KB/s. Than it drops to zero. I think it is about security settings. But I could not detect which setting cause this. ...
0
votes
0answers
78 views

Hard drive: more RPM or higher capacity, which is faster?

I need a relatively fast hard drive (random access). For the same amount of money, I could buy WE Velociraptor (250GB, 10kRPM) or WD Red (1TB, 5400? RPM). SSDs or 15kRPM drives are too expensive even ...
0
votes
0answers
144 views

Advice on SSD performance bottleneck needed

I guess I need some advanced advice on SSD, SATA, in/out limits etc. I'm programming a video installation where I continously read and write quite a lot of data: To the first SSD, drive A, I write ...
0
votes
0answers
147 views

Does EnhanceIO supports TRIM on SSD?

Does EnhanceIO supports TRIM on SSD? Or it has own implementation of similar technology?
0
votes
0answers
168 views

Why does the same RAM chip benchmark 2x faster on Intel CPUs?

Compare memorybenchmark.net's benchmarks for the "Kingston KHX2133C11D3/4GX 4GB" chip in the read uncached ddr3 intel vs read uncached ddr amd benchmarks. The Intel speed is listed at 14,881 MB/s , ...
0
votes
0answers
466 views

xbootmgr failing to run a trace, couldn't find a kernel logger

I am attempting to run a boot trace on a computer that is slow to log in using xbootmgr. It is a Windows 7 Professional computer that is on a domain. Based on the guide on this website: ...
0
votes
0answers
22 views

Is there a way to run a job exclusively on a chip?

We've got a bunch of large (1TB+) NUMA machines at work and have been getting a lot of noise in benchmarking. We've noticed that run times for our application are very consistent from one run to the ...
0
votes
0answers
447 views

installed 64-bit W7 on Core 2 duo slow pc

CPU: Intel Core 2 Duo P7350 2.00Ghz RAM: 3GB Hi I recently cleaned and installed Windows 7 on my 3 year old laptop. And it seems most programs are running incredibly slow when starting up a program ...
0
votes
0answers
32 views

Groovy performance on Linux machine

I have a problem when I start Groovy on one of my Linux machines - it takes about 30 seconds to execute very simple command: groovy -e "" if I run strace on it, here is what I see where it stops ...
0
votes
0answers
32 views

windows 7 in one wifi-network slow

My roommate's Dell XPS is incredibly slow in our new wifi-network (new router - Netgear R6250 with dualband 2,4 GHz + 5GHz, ac 1600), but another Windows 7 computer goes normal. In another ...