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

learn more… | top users | synonyms (3)

2
votes
1answer
446 views

Firefox not using cache?

Some times I have issues with the wireless connection where I live. That issue is irrelevant to this (there are two IT departments managing this thing; there's nothing I can do about it). Most of ...
0
votes
1answer
728 views

Is it possible to have a wireless in-house NAS with wireless data transfer rates of equivalent to SATA speeds?

Basically I would like to know, if it is possible to set up an NAS in my house to be accessed wirelessly, that can reach equivalent real-life data transfer speeds to USB 3.0 or an internal SATA hard ...
1
vote
1answer
498 views

Copying a large number of small text files between two servers over WAN

We have a few thousand small files (2-20KB) to copy between servers in one folder for backup purposes. Currently the process is automated as a cron job and does of SCP copy of each file to the remote ...
0
votes
2answers
540 views

why i7-860 is two times slower than E3-1220?

I have financical trading software. It decodes fast/fix messages. I'm running same binaries on two different machines on very similar set of data. Software receive "messages" and decodes them. The ...
1
vote
2answers
2k views

Faster two way Boomark/History Sync for Firefox?

I need a fast automatic two-way bookmark & history sync. Firefox sync seems too slow because I might bookmark/visit a URL then within a few mins put desktop to sleep and leave the house; if it ...
0
votes
1answer
562 views

performance monitoring

I want to monitor CPU usage, disk read/write usage for a particular process, say ./myprocess. To monitor CPU top command seems to be a nice option and for read and write iotop seems to be a handy ...
42
votes
5answers
13k views

What is the proper way of debugging a slow Windows installation?

You know the drill - you've been asked to check why your cousin's computer is running slow. I was right there yesterday. Being a Mac user since 2007 I haven't really dug deep in Windows internals in ...
5
votes
1answer
4k views

Is Chrome possibly causing excessive disk usage?

On my Windows 7 computer, this happens: I work for several hours without problems, also using Chrome Suddenly, just after refreshing a page in Chrome, disk starts being used excessively (here I can ...
1
vote
1answer
2k views

Would upgrading memory from 4GB to 8GB on my laptop solve swapping issues?

I have a laptop with 4GB of memory with Windows 7 on it and I often experience with Eclipse that it is swapped out to disk. On the net they usually write 4GB of RAM is more than enough for average ...
3
votes
1answer
984 views

How can I calculate the RAM Performance of two latches?

How do you calculate the relative performance of PC RAM? For example, what is the relative performance of the following: G.Skill Ripjaws Z 8 x 4GB Kit, DDR3-2133, CL9-11-10-28@1.65V G.Skill Ripjaws ...
5
votes
3answers
2k views

Low RAM in Debian/Ubuntu causes complete hang with disk thrashing

I've been having this severe performance issue, both in Ubuntu 11.10, and Debian Wheezy: If one process uses up a great deal of RAM (say, 3700 MB out of 3900 MB), the system quickly becomes unusable, ...
11
votes
5answers
4k views

Vim configuration slow in Terminal & iTerm2 but not in MacVim

Ideally, I want to use Vim from Terminal or iTerm2. However, it becomes unbearably slow so I had to resort to using MacVim. There is nothing wrong with MacVim, however my workflow would be much ...
2
votes
1answer
536 views

Why only my PuTTY scroll slow on ubuntu 10.04 running under VMware?

Scrolling up in PuTTY is very slow even just after starting and connecting. I've tried black listing the VGA16 frame buffer that showed on 'dmesg | grep -i frame' output. It is not used now but this ...
25
votes
10answers
29k views

Computer slow after installing 32GB RAM

I'm currently running very large network simulations for my PhD research, for which I need lots of RAM. I have a Core i7 2600K processor with a Gigabyte GA-Z68AP-D3 motherboard, running Windows 7 ...
6
votes
11answers
28k views

Will an SSD speed up an Atom-based netbook?

I have an Asus EEE PC 1000H, which I bought for its light weight and great battery life. However, it is painfully slow. Judging by the constant flickering of the HDD light, disk I/O looks like a ...
2
votes
2answers
3k views

How do I troubleshoot a slow starting application?

While I am very satisfied with the overall performnace, a few application (notably the Offics suite and the Teamspeak 3 Client) lately take about 10 to 15 seconds to start. During this pause, no ...
-1
votes
2answers
1k views

How to find out what application slows down the system (on Windows)?

Sometimes (~once-twice a day) I experience slowdowns (up to freezing for 5-10 seconds) and I don't know their cause. I tried looking into Process Explorer, but it shows only current rates and history ...
0
votes
3answers
845 views

VMWare Workstation 8 - is there a performance hit on host?

The main question: How much impact does having VMWare Workstation installed? What I mean by that, is VMWare Workstation comes with a bunch of services, a load of network devices, and so on. By ...
47
votes
3answers
94k views

Linux: find out what process is using all the RAM?

Before actually asking, just to be clear: yes, I know about disk cache, and no, it is not my case :) Sorry, for this preamble :) I'm using CentOS 5. Every application in the system is swapping ...
0
votes
1answer
1k views

Wireless repeater shows 54 mbps G when configured for 300 mbps N

I have an Encore ENHWI-2AN34D as a wireless repeater in my WLAN. The router is a TP-LINK TL-WR1043ND 300 mbps N and the repeater is 300 mbps N too, but when I check signal strength with inSSIDer or ...
0
votes
1answer
158 views

Why is the Windows UI responds slowly after being idle for a long time?

I open these applications in my desktop computer: Visual Studio 2010 Professional IBM Lotus Notes Google Chrome And when it is idle for an hour and I restore the windows, the user interface ...
2
votes
2answers
5k views

Computer suddently slow after a blue screen

My computer was fine until I had a Blue Screen 0x0000007A. Right after that happen, I did a full recovery backup with the Acer tool that they give with the laptop cause I wanted to reformat for a ...
2
votes
2answers
1k views

CPU performance fluctuates wildly

CPU: Intel Core 2 Duo P8400 @ 2.26GHz. I've had this laptop for about 3 years and in the past month I've started getting periodic framerate drops in games. Usually the pattern is random, something ...
7
votes
3answers
5k views

Debugging Linux I/O latency

I'm having some I/O problems on a couple of Linux systems that I administer. They manifest in that processes often block for up to several seconds in such simple syscalls as open(), unlink() or ...
48
votes
12answers
59k views

How can I produce high CPU load on Windows?

For testing purposes I need to generate high CPU load on a Windows Server 2003. I cannot install any software but have to make do with what Windows provides. What would be the best way to achieve ...
3
votes
1answer
136 views

Transcender very slow

I installed Transcender to practice for a Microsoft certification. I also installed the exam question files. It is all very-very slow after a short while. Is there any way to help on this? Further ...
3
votes
2answers
1k views

Understanding Performance in my Task Manager

Hi this is how my task manager looks like, most of the time. Here are my questions Does adding more RAM give me any performance benefits? If only 3.33GB of my 8GB DDR3 Ram is used, does this mean ...
4
votes
2answers
504 views

How do I troubleshoot a slow Windows computer? How do I know if more RAM can make a difference?

How do I troubleshoot slowness in a Windows computer? How do I know if RAM is an issue? In this case Windows Explorer is slow. (but it is quite subjective) I think it might be because of many ...
2
votes
1answer
8k views

SVCHost using 100% CPU in Windows 7

I am having a problem with Windows 7. When I boot up, the CPU jumps to 100% execution for about 10-15 minutes. During this time, it is really slow, and if I play any music, the songs play slowly and ...
3
votes
3answers
5k views

Is there a bootable ISO out there that does a performance check on PCs?

I am looking for something that checks CPU speed, memory, disk, graphics, in the same way done by the Windows performance index. I need a bootable ISO.
2
votes
1answer
663 views

Software to detect hardware bottlenecks?

Is there software available that I can run on my system to detect possible hardware bottlenecks (CPU, RAM, Graphics, …)? p/s : I'm running Windows 7
3
votes
3answers
427 views

Is my laptop running slower than it could be?

I have a dual core CPU in my laptop. Supposedly it's supposed to be running at 2 Ghz. When a dual core CPU is said to be running at 2 Ghz, does it mean that each of the cores should be cranking at ...
1
vote
1answer
344 views

Why do I only get half of the throughput when copying from my USB 2.0 drive?

When using the command: `tar cvf - ./Lacie/ > ~/Lacie.tar` According to Activity Monitor this gives me: Data written/sec: 32.1 MB/s Data written/sec: 31.5 MB/s (peak 47.9 MB/s) CPU usage: 5.7% ...
3
votes
2answers
6k views

Brand new Seagate HDD has high raw read error rate

I've just purchased a brand new Seagate ST31000524AS 1TB HDD. Manufacture date shows as January 2012 (yes that's as new as new can get), so must be one of the new batches from the post-flood Thailand. ...
1
vote
1answer
318 views

How to cache windows share locally

My IT department provides me with space on a file share on a server, which is backed up. Ideally I would like to work straight out of this directory because then backups are not my responsibility. ...
6
votes
3answers
2k views

Is it worth to buy an external USB SSD drive for my laptop to increase performance?

I'm a programmer, and I use Eclipse for Java development. Recently I've installed an internal (SATA) SSD drive on my home machine, transferred Eclipse installation and project to it and noticed a ...
0
votes
2answers
679 views

Slow speed due to HDD

I want to know that if a HDD with clicking sound(which means probably the HDD is faulty) which although runs perfectly fuine with occasional disk errors(sometimes) actually cause your comuputer to ...
0
votes
1answer
633 views

Does there exist a good “mobile browser” for use on a PC?

As many people I guess, I sometimes have to browse the web on a slow computer (in my case, a little netbook) and find it really slow. On the other hand, people can browse the web quite fluently with ...
1
vote
0answers
390 views

how to evaluate the performance of a dedicated server for hosting web sites [closed]

Take the following situation. I have a computer with these specs Intel quad core (released before the i7s back in 2005), 4 gigs of RAM (DDR2 memory), 500 GB hard drive, Asus motherboard. I ...
2
votes
4answers
3k views

Virtualizing a 32 bit guest on a 64 bit os

So I was wondering if anybody knew if there was any performance issues with virtualizing a 32 bit os, in my case 32 bit windows 7, on a 64 bit os, mac osX lion. I remember reading that running 32 bit ...
1
vote
2answers
711 views

Why youtube video reading often hangs for a few seconds?

When reading a video online (i.e. youtube), I often get freezes (application hangs) when the video is not fully downloaded, and I can't get why? I am sure however that it's a freeze of the ...
2
votes
4answers
4k views

Lenovo Thinkpad 400 beeps after installing 2x4GB RAM

I just bought 2 x 4GB RAM (Corsair Value Select 4GB DDR3 1066MHz CL7 SODIMM (CM3X4GSD1066)) for my Lenovo Thinkpad T400. I installed the RAM and I get beeps (1-3-3-1). Does anyone have any ...
6
votes
3answers
387 views

Does Windows 7 on a Solid State Drive suffer noticable “Windows Rot”? [closed]

"Windows Rot", defined as the build up of old programs distributing shared files everywhere, having several unnecessary programs running at start up and cluttering the registry can significantly slow ...
0
votes
1answer
56 views

Firefox performance of web pages

I know a thing called firebugs exists but I am looking for any other firefox plugin that gives useful performance information. What I would really like is something that would record my clicks and ...
0
votes
1answer
807 views

My computer is very slow when swapping between applications

Sometimes my computer is very low. Especially when I have 2 or 3 applications opened at the same time. I noticed when I switch from one application to another, the computer need to read on disk and it ...
0
votes
2answers
7k views

What does TPMc stand for?

I need to provide some performance values for a server specification and I've been asked to provide TPMc values. What does it stand for and where can I find this value for specific processors? (If it ...
2
votes
2answers
2k views

Monitoring CPU usage using MS tools

Can CPU usage be monitored in Event Viewer? I don't want to use a third-party software. Can I set a rule so that Event Viewer can show me if the CPU usage gets higher than a set value?
2
votes
2answers
2k views

Single spots of slow harddisk performance, but no bad sectors?

I use a Samsung 1.5TB harddisk (EcoGreen F2) and recently tidied up quite a lot. So 500GB is written, the rest is free. Now when I am copying some huge files (gigabyte sized), the harddisk shows full ...
5
votes
4answers
11k views

Scrolling browser through RDP is jerky. Other applications behave fine. Why?

I have Windows XP SP3, and Windows 7 machines acting as a server in my LAN. (it's only 100mbit LAN there is no WAN). The client is Linux with the latest FreeRDP 1.x just compiled. Here is the ...
2
votes
3answers
393 views

What is more effective for reviving performance - cleanup utilities or reinstalling the OS?

My 1.5 year old Toshiba Net Book running Windows 7 is slowing down. Will running clean-up utilities or re-installing Windows be more effective for reviving its performance?