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

learn more… | top users | synonyms (3)

1
vote
1answer
547 views

Monitor I/O on Windows 2003 for specific directories?

I want to monitor I/O of a Windows 2003 server system. I'm specifically interested in the I/O activities of specific directories (where I have an unknown and ever changing number of files). I have a ...
0
votes
1answer
179 views

Moving one large archive, or many individual files and folders?

Is it faster to move files between media in large pieces (i.e. many files and folders within an archive) or move them file-by-file? Is there a significant difference, considering that the file ...
1
vote
3answers
23k views

Windows 7 svchost.exe (LocalSystemNetworkRestricted) reading/writing like crazy

I'm trying to understand why my Windows 7 machine is constantly reading/writing to the HDD, making everything go slow. As you can see in the screenshot, resmon reports that there is a lot of disk ...
2
votes
1answer
182 views

Is there a performance hit to local file access with dropbox?

I've been considering using dropbox for a few reasons, since it seems to solve a lot of potential headaches. However, one thing I didn't find a lot of information on were the drawbacks from a ...
0
votes
1answer
1k views

Slow Windows Explorer on Windows 7

I have Laptop with i7 (4 cores), 8GB ram and SSD OCZ Vertex 3 MaxIOPS which in testing that I did just now does 400mb/s+ read/write. However the responsiveness of Windows Explorer is far from being ...
0
votes
1answer
339 views

What is the fastest way to semi-securely wipe hard drive?

Given dd if=/dev/zero of=/dev/sda provides sufficient wiping for our purposes, what is the fastest way to "zero" the drive? I have heard of this "Secure Erase" feature that is built in to hard ...
19
votes
5answers
15k views

Why is my /dev/random so slow when using dd?

I am trying to semi-securely erase a bunch of hard drives. The following is working at 20-50Mb/s dd if=/dev/zero of=/dev/sda But dd if=/dev/random of=/dev/sda seems not to work. Also when I ...
1
vote
0answers
460 views

continuous hard disk access - slowing down my machine

I find from the hard disk access LED on the front of my machine that the hard disk is being accessed more often and probably because of that, my machine is quite slow. The machine becomes unresponsive ...
14
votes
2answers
7k views

SSH is slow to make a connection [duplicate]

I just installed Ubuntu 11.10, and whenever I try to SSH into my servers it's very slow. Before it displays the password prompt, it can take between 40 seconds and 60 seconds. I use: ssh ...
4
votes
2answers
4k views

Why is my mouse lagging?

Don't remember this from earlier, but my mouse is lagging when I refresh specific websites in Chrome and Firefox. I can't observe such lags with Internet Explorer. Here's a video i made I tested ...
2
votes
4answers
142 views

What are some fundamental practices I need to do to keep my new Windows installation fast? [duplicate]

Possible Duplicate: Tips to increase performance of a Windows computer Keeping windows installation clean I just got a new laptop with a completely new install of Windows. It runs very ...
0
votes
2answers
111 views

How to choose a more responsive OS [closed]

I bought a computer in 2007. It has 2 GB RAM. 2x1.46GHZ. But for some reason it is very laggy. I want to install an operating system which will work as fast as possible. What I want to do: JAVA ...
1
vote
0answers
269 views

Ubuntu 10.04 slow on a Dell Optiplex 360

My desktop is becoming very slow - even when the load as displayed by the w command is around 2 or so. I run eclipse, crashplan, dropbox, and some times matlab. Chrome is the browser used. I have 4GB ...
0
votes
3answers
1k views

Which laptop specs to target for Visual Studio 2010 [closed]

I have three days to get a new laptop that can run Visual Studio 2010. Normally I have two instances open, an instance of SQL Management studio, IIS and a few web browsers. What are the specs I ...
5
votes
2answers
424 views

What type(s) of performance improvements to expect between architectures using QPI versus a FSB?

While comparing Intel's two new i7 processors, I noticed that the only difference between them apart from the L3 cache size and CPU speed is that one has QuickPath Interconnect, and that seems to ...
0
votes
2answers
2k views

Good free software for freeing up RAM Memory in Windows 7(64bit) [closed]

I am looking for good Windows 7 software to free up RAM memory on my PC... I tried some ones I found on Google but they were bad stuff... with viruses, spamware etc... I want a free, clean, ...
2
votes
1answer
94 views

Is it possible that a firmware update made startup slow?

I have a 2011 MBP w/ 8 gigs of RAM and a 128 gig solid state drive. I was just notified that updates were available. I briefly glanced at the details of the update and remember seeing updates for ...
1
vote
4answers
3k views

Will allocating too much virtual memory have any negative effect on your laptop?

Like will it slow down your boot-up? Also what problems will arise if you allocate more hard drive memory for virtual memory than what is available, will that cause any issues?
0
votes
2answers
1k views

file transfer over fast ethernet to external usb 2.0 harddrive

I have a homeserver in my flat. The local area network is fast ethernet and an external harddrive is connected to the server via USB 2.0. What is the bottle neck when copying files over the network? ...
3
votes
4answers
5k views

What is causing the atrocious performance of my Macbook pro?

I have a Macbook pro, both of which are evincing awful performance for day to day tasks. I'd like to know what is causing it, or failing that, how to diagnose this performance issue more effectively. ...
0
votes
0answers
685 views

How can I overclock my Pentium 4? [duplicate]

Possible Duplicate: How to Overclock a Dell Inspiron 531? How to overclock Dual-Core CPU E5200? Lacking options in BIOS? I have these specs from Everest: CPU Properties CPU Type - Intel ...
2
votes
1answer
410 views

What are the most likely bottlenecks determining the performance of CamStudio screen recording? [closed]

When doing screen recording, I can get a frame rate of maybe 15 frames per second for the full screen on my 1080p monitor using the XVID codec. I can increase the speed a bit by recording a region, ...
4
votes
1answer
2k views

Possible negative side effects of increasing the virtual address space for applications?

Here is my system's configuration: Windows 8 Developer Preview (32-bit) 2 GB RAM Nvidia GeForce 8400 M (w/ 256 MB RAM) In order to run a memory-intensive application, I needed to increase the ...
5
votes
3answers
2k views

Can compressing Program Files save space *and* give a significant boost to SSD performance?

Considering solid-state disk space is still an expensive resource, compressing large folders has appeal. Thanks to VirtualStore, could Program Files be a case where it might even improve performance? ...
0
votes
1answer
111 views

Can different models of drives be arranged in RAID 0

Given one WD Caviar Black 2TB and WD Caviar Green 1.5TB please tell me the following: Can these two be stripped (RAID 0)? Will there be a performance increase, or would using WD Black as a system ...
3
votes
2answers
166 views

Disk Partitions and Performance

I've got the following partition set up on one of my hard drives (Samsung 1TB HD103SJ): This wasn't the original setup. Before, there were 2 partitions just before the 'Games' partition (a previous ...
2
votes
2answers
6k views

Does having Windows Aero enabled negatively impact gaming performance?

I like having Aero enabled when I have to work. Sometimes I like to play games though. What's the performance hit on games? Is there a performance hit at all from using Aero?
6
votes
1answer
4k views

How do I analyze excessive Windows kernel mode CPU usage?

My Windows XP machine recently started to semi freeze on me every odd reboot after a few minutes of usage (different programs / no additional prg start at all). Update: I have now managed to get a ...
0
votes
3answers
1k views

procexp.exe has high CPU usage

Once in a while The system starts consuming a 5-6 times more CPU than usual. For instance if usually procexp.exe CPU usage is ~3%, it can get to 15-20% in that period. In my opinion, this is not a ...
0
votes
0answers
98 views

HD footage playback is slow on my computer

I have an MSI X58 Pro Bord with an i7 processor and 6 GB Kingston memory. My VGA card is ATI RADEON HD 5850 and I have 2 hard disks of 1 TB size. The Power supply is a 700W/80 plus goldkist. I run ...
0
votes
1answer
919 views

Samba transfer over the Internet is slower than expected

I am trying to transfer files from a PC at home running Windows Server 2008 R2 to my computer here at college, running Windows 7 Ultimate. To test this, I tried connecting to my home PC via SMB with ...
0
votes
1answer
324 views

Computer slows to a crawl at 10AM-10:06AM everyday due to nvstor64

Windows 7 x64 I have checked the task scheduler and I don't see anything that is scheduled to run during that time frame. I have watched the task manager during the slow period and nothing it taking ...
1
vote
1answer
336 views

Sudden machine reboots observed with ipmiutil watchdog timer

Originally raised on serverfault as this question. I've got a production openSUSE 11.1 2.6.34.4 Intel server with a standard ipmiutil-2.4.1 installed. The watchdog is basically a 90 second hardware ...
20
votes
3answers
7k views

Which have better performance Two 2GB RAM sticks or One 4GB RAM stick? [closed]

I am planning to buy a new PC. The mainboard has 4 memory slots, The PC has Windows 7 64-bit installed. Which approach is better regarding the performance buying: Two memory sticks of 2GB? One ...
7
votes
3answers
976 views

Why are apps so slow initially when switch to them, even though I have free RAM?

On my Windows 7 (64-bit) PC, when I have a few resource hungry programs going, and half a dozen others, when I switch to an app that I haven't used for a while, it takes a long time to respond and I ...
2
votes
2answers
450 views

Should I put a game on an SSD or HDD for best performance?

I have two disks: System disk: Corsair SSD Force GT 120 GB Storage disk: 1 TB Samsung Spinpoint F3 HD103SJ Where should I put a game for best performance?
10
votes
2answers
932 views

Why would an incorrect password attempt take a lot longer to process than a correct one?

The most prominent place I've noticed this is when SSH-ing at work, but I feel like I've observed this behaviour elsewhere too. When I try to log into Linux servers from my Windows desktop at work, ...
1
vote
3answers
4k views

Does Dropbox affect Internet line speed?

My Internet speed is awful. Browsing, the works. Does Dropbox affect internet line speed because of the constant updating of the info in your Dropbox?
1
vote
1answer
1k views

Does a full cache slow down firefox page loading speed?

On the road i had to use a slow (64kB/s) internet connection with firefox 6. Max. cache size is 250 MB. While i never had problems with full cache on DSL connections and page loading speed, on very ...
5
votes
1answer
647 views

Is having a wallpaper, desktop icons and auto-hide taskbar a waste of cpu resources? [duplicate]

Possible Duplicate: if we do not use any wallpaper on desktop will it increase performance of windows? There was a time when PC magazines used to advise not having a wallpaper because it ...
3
votes
2answers
94 views

System for computations

I do a lot of computations in Mathematica, (solving large system of linear equations, for example), and as a hobby, I also create fractal art, and animations. The program I use do not utilize ...
5
votes
3answers
17k views

Does deleting temporary files really speed up your computer? (Windows)

You've most certainly read it on the internet, and you may have even heard other supposedly computer-savvy people suggest that deleting temporary files speeds up your (Windows) computer. But how does ...
7
votes
3answers
13k views

Windows 7 System process reading/writing like crazy

I have a problem that my windows 7 computer sometimes starts accessing the disk like crazy for maybe 10 minutes at a time. The process in question is the "system" process. I have disabled superfetch ...
14
votes
3answers
4k views

Why does HDD activity slow the whole System down (on Windows 7)?

If I copy a large amount of data from on drive to another (physical) drive my whole system is running slow. I am using Windows 7 64bit version on an Intel Core 2 Duo 3 GHz. This is the situation: ...
1
vote
3answers
3k views

How can I find out why my computer is taking so long to boot?

My computer takes 2:37 to boot (according to Soluto) (avg. 1:05). As you can see by the information I've included, this shouldn't be so. I can't for the life of me figure out why. I've always had ...
2
votes
1answer
2k views

Virtualization: tips to speed up a Linux KVM guest

I set up an host Linux system with KVM and I installed another Linux as a guest (Debian 6). I nside the guest I launch a vncserver and I access it from the host using vncviewer. It works fine for my ...
3
votes
2answers
944 views

Slow performance during moderate/high IO

Windows XP machine suffering from slow performance during maintained IO, either network or disk. CPU & memory usage are both minimal, system+interrupts usage < 5% according Process Explorer. ...
4
votes
4answers
8k views

Some Portions of Computer Running Slow (Specifically Graphics)

I noticed that a few things are running slow today on my Windows 7 laptop. Specifically, they are: Opening and closing windows takes several seconds for the animation to complete. Windows media ...
2
votes
1answer
4k views

Windows 7 slow despite clean install and copious hardware capabilities

I recently got a nasty piece of malware of some sort that forced me to do a complete re-install. It was actually probably I good thing - my old windows was filled with random junk that should have ...
1
vote
2answers
1k views

Better performance in VMware Workstation 8?

My laptop has only 4GB RAM and core-i3, so I'm trying to set up my vm to run smoothly with those specs. Currently, I have the machine using 2 processor cores and 1.5 GB of memory. However, while the ...