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

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3
votes
7answers
931 views

Computer is really slow

I'm not exactly sure when exactly it started happening, but my computer now is extremely slow. Originally, I have been using this computer for all sorts of stuff: Photoshop, web design/development, ...
3
votes
6answers
270 views

what Steps you follow and recommend to make windows xp work faster?

after some months from running my windows xp i feel its getting old and slower. i always hear about tools and applications that can make the windows faster, such as registry cleaners, but i am always ...
3
votes
8answers
13k views

Very long boot up process?

Very strange boot up process that took literally 5~6 minutes. Other than the boot up, the PC works perfectly fine. Things I have tried: CHKDSK (No errors) Reset BIOS (HDD 1st) Defrag Link to ...
3
votes
0answers
754 views

HDD very slow performance after full copy from SSD

The PC: Core i7-4770, 16GB RAM. There are 120GB SSD and 1TB HDD (new without any bads). On the SSD I had Windows 8.1 installed with all other stuff. Someday all programs exceeded 120GB limit and I ...
2
votes
8answers
274 views

Computer Speedup

We've all seen that ads strewn across the web that tout the ability to increase the speed of our computer by 200%+. Obviously, these don't work. But what is the real way to speed up and optimize your ...
2
votes
2answers
84 views

Loss of space on a 16 Gb flash after format

So, I have a friend who has a flash drive that was playing music on a dvd player. Everything was great then all of a sudden it just stopped. First, I tried to do some data recovery on it but the ...
2
votes
0answers
1k views

When tab groups are loaded, Firefox becomes unresponsible for minutes (Unresponsive script)

I have several tab groups (~ 20) in Firefox. I can start the browser without any problems. However, as soon as I … click at the "Group tabs" icon in the toolbar, or right-click on a tab and hover ...
1
vote
2answers
4k views

rsync slow copy from one disk to another

I got two drives of the same model which are connected using SATA. When benchmarking read speeds using hdparm -t /dev/sdX, speeds of about 160MB/s are returned. When benchmarking write-speed using dd ...
1
vote
1answer
2k views

Frequent WiFi disconnects on laptop when not charged

I have a weird wireless connection problem. The whole thing started today, when I installed my new router a D-Link DIR635 model after my previous router became very unreliable and faulty. I use this ...
5
votes
6answers
18k views

Windows 8 disk usage is 100%

Windows 8.1 Preview has disk usage of 100%, and the fan is very noisy. It started one week ago, before that it wasn't so noisy and the laptop worked very well. I don't know the cause. I hope you can ...
5
votes
4answers
7k views

How to *quickly* get a list of files that have bad sectors/blocks/clusters/whatever?

My wife's Windows 7 (64-bit) box has suddenly developed a SMART "disk is bad" status. I'm attempting to copy everything off (no admonishments about lacking a backup regimen, please, I know already :(...
5
votes
1answer
3k views

How much of a performance hit using asymmetrical dual channel RAM?

As a follow-up to my question Can a P55 chipset support 6GB as 2GBx3?; I understand there might be a performance hit using an odd-number of sticks. My question therefore is - How much of a ...
4
votes
2answers
1k views

How to quickly view huge PNG images in OS X?

I need to view and zoom into selected parts of PNG images around 10,000x10,000px, ~10MB. When I open these images with Preview, it takes over a minute to load and then is very slow to show the image ...
4
votes
2answers
7k views

Does partitioning a hard drive give a performance gain?

Back in the day you could gain some performance by partitioning your hard drive to several partitions: Pagefile OS and Apps data There was some debate regarding the order of the drives as the ...
3
votes
6answers
2k views

hibernate takes 4 minutes 38 seconds

I have a 4GB RAM 500GB 7200 rpm HDD laptop and when I hibernate the laptop it takes in the region of 3 or 4 minutes(*) to hibernate. not the 24 seconds it used to take. It takes this long whether or ...
3
votes
3answers
12k views

How to open ports on router for better torrent performance

I've been using utorrent to download and upload torrents for a long time. Recently someone told me that I need to open port(s) for utorrent from my router settings for better downloading and uploading ...
3
votes
2answers
5k views

Does ReadyBoost slow down systems with more RAM?

I have 4 GB of RAM and would like to make use of ReadyBoost to speed up hard drive access, by taking advantage of its hard drive cache method. However, as I understand the technology, ReadyBoost ...
3
votes
9answers
11k views

What's faster for office work - SSD + slow CPU or HDD + fast CPU [closed]

I am going to buy "new" (it can be used) notebook for my work - mostly heavy surfing (I need more browsers with many tabs opened), programming and other office work. I have no experience with this: ...
2
votes
4answers
131 views

How do I speed up lackluster hardware running Windows 7?

I'm one of very few people at my company who does graphic work, and I do quite a lot of it. Headquarters doesn't quite get that graphics work requires different hardware than, for example, sales work, ...
2
votes
3answers
4k views

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) ...
2
votes
2answers
3k views

SSD and Netbook - freezing during I/O

I have a netbook (Dell Inspiron mini 10) that I recently upgraded to an SSD (Plextor PX-256M3). The netbook has 1 GB of RAM (non-upgradable), and just the simple "Standard Dual Channel PCI IDE ...
1
vote
3answers
4k views

Slow Browsing/Direct Download, but Fast Bittorrent Download

I'm using Windows XP SP2. I have a 1 MB connection via a SpeedTouch 585, and my internet speed registers at 0.3 MB, with a maximum download of 30kbps. Not to mention a terrible ping at 500-1500. On ...
1
vote
1answer
928 views

ATI Radeon HD 4650 poor performance in battery mode

I have an AHTEC Sense XHLB2 (a relabeled version of the Compal HLB2) that has a VGA ATI Radeon HD 4650. When I switch off the power plug and run into battery mode the perfomance of the laptop is ...
1
vote
1answer
164 views

automate system maintenance

How do I automate system maintenance? I'm using tune up utilities 2010, portable spybot, malware bytes, ad-aware, c-cleaner, and avast free antivirus. I'm using windows xp. Please tell me, how can I ...
1
vote
2answers
211 views

Performance issue with my system

Recently while using my laptop (Dell XPZ15z) all of a sudden the CPU usage is spiking to 80-100% then will drop in say 5-7 sec. I am not running any application or process that requires such CPU usage....
0
votes
5answers
3k views

Does compressing files in XP slow things down?

I frequently run the Disk Cleanup tool and let it compress old files. However, one of the directories it compressed, full of small icon images, is terribly slow. Is this a result of the compression or ...
0
votes
1answer
311 views

Will adding extra RAM in my computer speed it up?

I have a 5 year old Dell Inspiron 530 desktop computer which is slowly grinding to a halt. Someone told me if I put extra RAM in it will speed it up. On the motherboard, there are four slots but only ...
0
votes
2answers
4k views

Windows 8: Disk Usage at 100%? Nothing Responds

Lately my Windows disk usage has been "sky-rocketing" to 100% and then everything freezes up, nothing is responding. I can’t even open the menu from sliding my mouse to the top right corner and I can’...
0
votes
1answer
2k views

Slow transfer with memory stick (819 kb/s)

What do I do to optimize the file transfer rate of a Memory Stick Duo? The file transfer was not like this when it was still new. Can reformatting give new life to a memory stick? It takes about 20 ...
174
votes
9answers
22k views

Why does emptying disk space speed up computers?

I have been looking at a bunch of videos and now understand a bit better how computers work. I better understand what RAM is, volatile and non-volatile memory, and the process of swapping. I also ...
66
votes
5answers
136k 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 ...
55
votes
13answers
85k 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 ...
25
votes
4answers
24k views

Quickest way to merge snapshots in VirtualBox?

I have vdi with quite a number of snapshots taken from it - say, 50 or 70 snapshots. I want to have one plain vdi with a current state. These snapshots take way too much disk space and are not needed ...
26
votes
4answers
102k views

Windows 8 extremely high disk usage and slow IO

Problem After upgrading from Windows 7 to Windows 8 Professional, there seem to be a few disturbing problems. When I have the Task Manager open, I sometimes notice the disk usage climbing to 50, 75,...
11
votes
2answers
6k views

Best Linux for a single application & fast boot? (also How-to?) [closed]

I'm looking for a way to run Celtx,a screenwriting software on a Linux Distro and nothing else, no bluetooth, internet/WiFi, media, games, nothing, not even a desktop. Just boot up the OS and Bam! ...
14
votes
6answers
93k views

Windows 7 running slowly with low CPU usage and memory

I have a relatively new (under 2 yrs old) Windows 7 machine. It has 9GB of RAM, and an i7 core CPU (930 @ 2.8GHz w/ 8 CPUs). After about 8 months since a clean install, I noticed my computer was ...
38
votes
4answers
23k views

How badly do SSDs degrade without TRIM?

SSDs have been out for a few years, and have seen all kinds of usage patterns. Windows and Linux support the TRIM command, with Mac OS still trailing behind here. Update (2011): It appears OSX Snow ...
7
votes
3answers
36k views

My Mac is slow but don't know what's slowing it down

My Mac (Macbook Pro) is sometimes slow doing basic tasks, like browsing the web or something like that. If I open Activity Monitor, I have (maybe) one program that is about 10 % CPU, others are below ...
3
votes
1answer
8k views

Is there a way to disable Intel SpeedStep steppings on an Ubuntu Server using a command line application?

We cannot disable it using the BIOS, because Turbo gets turned off as well as a side effect (what a crappy BIOS!). I am looking for a simple command line tool for Ubuntu 12.04 LTS Server that can do ...
12
votes
6answers
44k views

Windows 7 kills VMWare performance by disk caching?

We're running Windows 7 Enterprise 64-bit SP1 on Dell Precision T3500's (Xeon E5630 @ 2.53GHz, 4GB of RAM). On top of this is VMWare Workstation 7.1.4, up to date. Running in a VM is Windows XP ...
12
votes
2answers
744 views

The Windows Registry - Why (and Where) Does It Exist?

Was talking to a friend about the registry, and realized I couldn't remember the issues Microsoft was trying to solve that brought it into being. I know it had something to do with too many different ...
11
votes
5answers
38k views

How to speed up Windows 8 on Samsung laptop?

I just bought a Samsung Series 5 notebook, with Windows 8, but I found it unreasonably slow to reboot and install updates. Last night I waited for 1h30 for it to install 1 update and reboot, when I ...
8
votes
1answer
12k views

How can I analyze performance issues before/during the logon process?

How can I analyze a performance issue that happens before or during the logon process?
3
votes
4answers
2k views

Which factors are most important when considering performance aspects of a motherboard?

I like to build my own desktop PCs, and I happen to know that I've got a rockin' processor and graphics card both, so my system definitely has some punch to it. I also know that I didn't get the best ...
27
votes
2answers
3k views

Why are start-up times faster on Windows 8? [closed]

A few people have done benchmarks comparing Windows 8 to Windows 7. Many features don't improve, but consistently, startup time is better. Why does Windows 8 start up faster compared to Windows 7? ...
15
votes
3answers
5k views

How can I verify that my SSD is performing as it should?

I've got a brand new 256GB SSD (Crucial CT256M225) which should have stellar performance. However, on my (also brand new) Dell Studio 1557 with Windows 7 Professional 64 bit, it's only giving a ...
15
votes
6answers
21k views

How to increase performance of Remote Desktop

How can I increase performance of Remote Desktop on windows XP sp3? A better network connection is not an option, this is for at work. I have suggested a network upgrade to my boss and it is not in ...
14
votes
14answers
47k views

What's the fastest way to transfer files between 2 computers? [closed]

Let's say that I have 80Gb of data to transfer from one computer to another. What's the fastest method to transfer that files? Network transfer? DVD Recording? Copying in a pen drive? Removing one ...
23
votes
5answers
20k 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 ...
22
votes
3answers
9k 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 ...