For questions concerning computer, or computer-related, performance. Please include metrics in your questions.
0
votes
1answer
27 views
How to to measure and monitor I/O performance
We have a linux cluster with worker nodes sharing a common remote file system. We want to optimize the I/O, in particular when the workers read from the remote fs.
The starting point is to measure ...
1
vote
2answers
33 views
How effective is a tool like Iolo's System Mechanic? [closed]
I'm evaluating System Mechanic for 2 computers and while it seems to be able to discover a lot of problems that I didn't know about, it fails to fix the one problem I was trying to fix (a problem for ...
-1
votes
0answers
12 views
Which server would be most appropriate? [closed]
Im in the process of evaluating buying some second hand servers online. The issue im coming up against is whether the extra cost is worth it with regards to a DDR2 & L5420 vs DDR3 and L5520 ...
0
votes
1answer
34 views
Specing out CPUs (more than just cores and clock)
This is not a production question, just something that I've been thinking about.
When specing out CPUs I know the general rule is a faster clock speed will make a core run faster and the greater ...
0
votes
1answer
28 views
How big a performance impact on Core i7 Xeon is caused by not installing RAM in pairs?
At work I have a dual CPU workstation (HP Z600) with i7 / Xeon E5620 Gulftowns installed on a Intel 5520 based motherboard. Factory, it was installed with 2x2GB sticks enabling 4GB in dual channel ...
1
vote
1answer
34 views
What is Conime.exe and is it safe to delete / remove from startup?
Why am I posting this?
After googling this, the answers were very unclear, scattered and gave different answers. So, once I had worked out what this process was and what it does, I thought I'd help ...
0
votes
1answer
20 views
Why doesn't the stop button work on my web browser(s)?
I'm developing a website, and sometimes the code behind the page I'm loading will get stuck in a loop or whatever..
Why is it that Chrome, Safari, Firefox, IE etc.. etc.. don't respond if this ...
3
votes
1answer
48 views
CPU gets stuck at 0.90 GHz and 53% usage cap
Configuration in question:
Model - Dell 1558
CPU - Core i7 740 @ 1.73Ghz - 2.93GHz
RAM - 6GB DDR3 1333Mhz
OS - Windows 8 Pro MSDN
Now this problem has started since yesterday.
My computer blanked ...
0
votes
0answers
13 views
Speed up Windows 2008 VPN (L2TP)
Earlier I posted the following question Connect to a PPTP VPN (Server 2008) on an Apple client (iPhone / MacOS) regarding problems settings up PPTP VPN.
I read that it should be faster than L2TP ...
1
vote
2answers
53 views
Browsing to localhost is slow when connected to Internet
When I browse localhost in my browser when connected to the Internet, the response is slow; it takes 30 seconds or completely times out. When I disconnect from the Internet, it is blazing fast and ...
0
votes
0answers
21 views
Microsfot Virtual PC 2007 running 3 windows XP VMs on Dual monitors. VM screens freeze on each screen after twenty minutes
I am currently running three VMs on Microsfot Virtual PC 2007. After about twenty minutes the screen freezes where it is at and will not continue until I move the window the the other monitor. But ...
2
votes
2answers
84 views
Why can a SD card be faster on an external USB reader rather than on a builtin SD reader?
I have a Sandisk SDHC 4GB Class 2 memory card, and I have benchmarked its reading speed with Palimpsest Disk Utility, under Linux and with my Acer Travelmate 5720G laptop.
These are the speeds when ...
1
vote
1answer
42 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?
0
votes
1answer
57 views
Diagnosing boot performance on Win7
I am trying to diagnose the problems I've been having with boot-up on my machine.
The system drive is an SSD, so it should be fairly quick.
However there is one moment, right after the "Welcome" wheel ...
0
votes
1answer
15 views
Firebug - turn of (deactivate) panels that are not used
I have all firebux panels on right now. There is one javascript application that horibly laggs when all panels are active.
So how do I turn panel (HTML, DOM, CSS, Net) off when I don't need one, but I ...
0
votes
1answer
20 views
How to increase performance for cost of appearance in Windows 7 RDP connection?
I am searching for method to increase Windows 7 speed, via RDP. I mean, I need better performance. I know, I searched for solutions and already followed them up, but maybe there is something else to ...
0
votes
0answers
21 views
What could cause a drop from Passmark 600 to 240?
We have several ASUS tablets that after some usage suddenly drop from a 600 rating to 240. They all have the same configuration and the benchmarks look very similar on different tablets.
Operating ...
1
vote
0answers
21 views
How to use tunefs
Introduction:
I'm planning a performance-oriented clean install of OS X (10.6) on my Mac and I've decided (among other things) to split the hard drive into multiple partitions.
Two of them will be ...
0
votes
1answer
37 views
Performance OracleJDK or OpenJDK
I am forced to using Java on my server and I am having a headache installing Java. I have an automated deployment script which installs the software and needs to be run to reinstall the server ...
1
vote
1answer
44 views
Calculate performance of RAM using timing and speed
if an 8gb DDR3 SDRAM 1600MHz has a timing of 8-8-8-24, how can I calculate if it will have a better performance than a 2x4gb DDR3 SDRAM 1866MHz with a timing of 9-10-9-28?
Also, will a 2x4gb DDR3 ...
2
votes
5answers
92 views
Where did my memory go after having a long up-time?
I have a Windows 7 Professional computer with 12GB of RAM. On a fresh start up, the amount of RAM is more than adequate for my needs. However, a couple of weeks into up-time and it appears that the ...
3
votes
2answers
239 views
Hyper Threading vs Overclocking
What is the difference between these two, and under what circumstances would I want to implement them? Are there circumstances when I would only want 1 and not the other?
According to Wikipedia, ...
0
votes
3answers
63 views
19MB/s Net Speed but Only 2MB/s Usable
Hi so i just got internet a about a month ago and my net speed is 19MB/s, I have tested it on loads of sites they all say the same thing(19MB/s), but it wont use more than around 2MB/s i have tried ...
1
vote
3answers
88 views
How does the Raspberry Pi stack up? [closed]
The Raspberry Pi is capable of running a server provided the setup has the right packages compiled. This raises the question of how it would compare to a simple rack mounted setup, or even just your ...
0
votes
0answers
22 views
How to Improve OS performance when used from USB flash drive?
I have a Linux Mint 14 (MATE) .ISO installed on an 8GB Kingston DTSE9 USB drive.
Booting takes about 1 or 2 minutes, which seems pretty normal for that kind of thing as far as I can tell.
When ...
0
votes
1answer
12 views
How can I read the time metric for a product step using xperf
I have Windows Performance Kit installed on my Win7 machine [xperf.exe version is 4.8].
I am basically trying to measure the time taken to perform a specific set of steps on my s/w application ...
0
votes
3answers
36 views
Does Unix grep work faster with long or short search terms?
Is it faster to look for long or short search terms? Or does it affect speed at all? In other words, should you make search terms as exact as possible?
There are more than 100 000 files and each file ...
-1
votes
0answers
26 views
What are some uses for GPU RAM? [closed]
I have an ATI Radeon 5450 GPU, with 2 GB DDR3 RAM.
Is there anything I can do to utilise this RAM?
Thanks!
0
votes
1answer
56 views
MTU, RWIN, and MSS
I have been doing some reading into TCP Receive Window (RWIN), Maximum Segment Size (MSS) and Maximum Transmission Unit (MTU). Right off the bat I have some questions and I need a power user's help!
...
0
votes
0answers
8 views
Is it possible to catch requests on barracuda load balancer?
I need to take different measures on barracuda load balancer and to trigger some actions. For example, if the response time of 95% requests exceeds 3 seconds then an action should be taken. How can I ...
0
votes
0answers
64 views
Best Use of 32GB of RAM in Windows 8? [closed]
I went a little nuts and bought 32 GB of RAM for my latest computer build. Besides being able to run a ton of VMs, is there any way I can have Windows 8 utilize all of this memory? Maybe put the ...
1
vote
2answers
58 views
For cloud machine is it a good practice to reboot periodically?
As a desktop Windows user one often find better performance if one reboot it after using if for a long periold of time. Is it also the case for virtual machine in th cloud, like EC2, Azure, or VPS?
2
votes
2answers
362 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, ...
2
votes
3answers
53 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 ...
2
votes
1answer
52 views
Pingdom Website Speed Test: Connect time is too long
My e-commerce website was performing poor and I decided to find out the cause.
A real good application came in help for me Pingdom Website Speed Test.When I analysed website with this, report was some ...
0
votes
0answers
31 views
Determining contributors to elapsed time during a network request
The situation:
There is a remote server.
I am running a client program that makes calls to the server and requests data.
These requests perform very slowly.
The server limits the number of results ...
-1
votes
1answer
13 views
Summary explanation of Windows Diagnostic Report [closed]
This might be very broad and potentially impossible to answer entirely, but it's very important I'm able to understand what everything covered in a Windows Diagnostic Report is telling me.
I've ...
-1
votes
1answer
59 views
Unknown error in iolo system mechanic
I was using system mechanic which is not working properly it gives an "unknown error". I have tried to uninstall and re-install , tried to remove it completely from registry , tried to re-install it ...
3
votes
1answer
44 views
Improving ffmpeg performance on older i5 windows machine
I'm saddled with using ffmpeg for some video conversion on an older windows box. Unfortunately my app crawls to a halt whenever ffmpeg is running.
Can any ffmpeg experts suggest any performance tips ...
0
votes
1answer
65 views
Very slow remote desktop from Win7 to XP
I am trying to RDP from an x64 Windows 7 to an x86 Windows XP SP3.
The connection is very slow: a screen redraw when switching full-screen windows takes several seconds, up to 20s if there are many ...
-1
votes
0answers
21 views
What's a good light-weight screen sharing utility that can favor performance over quality? [closed]
I stream gaming online and often would like my friend to provide co-commentary while I play. We chat using a skype call, and usually we attempt to use Skype's built-in screen sharing option so he can ...
0
votes
0answers
120 views
Gaming performance bad on M17x (GTX 680m)
I'm having problems with gaming performance and have no idea how to solve it right now. I know this machine should be able to perform better than this and I was hoping for some tips. Hopefully I'll ...
0
votes
3answers
142 views
How can I keep my laptop fan on the entire time?
I have a fan on my laptop that doesn't turn on often enough. The computer doesn't crash, but becomes very laggy.
When the fan turns on the computer starts running fast again.
How can I keep the ...
-1
votes
3answers
70 views
What can I do to improve my laptop's performance? [closed]
Core i5 2.67 GHz Processor
2GB RAM
250GB Hard Drive(the C: Drive has a total of 116GB out of which 17.24GB is free)
32bit Windows 7 Professional
I have a lot of themes installed plus I also have ...
0
votes
3answers
57 views
1TB or two 500GB Hard Drives [duplicate]
I am planning to build up a new PC for gaming. I need to know if it's better to have two 500GB HDs than one single 1TB Hard drive considering performance advantages.
2
votes
4answers
141 views
How can I fix my slow computer?
I use a Lenovo W520 laptop with 4gig of memory, 64bit Windows 7, intel i7 processor, 7200 rpm hard disc.
The computer seems to be very slow at times and when it's slow I look at my disk-hit LED and ...
0
votes
3answers
76 views
Windows 7 operates normally for several minutes after startup, then stalls.
When I power on my Windows 7 PC it behaves normally for ~5 minutes, and then I can't open any programs. If I opened something quickly (in the time before the stall) I can still use it. When the ...
13
votes
3answers
631 views
Is it slower to copy two files at the same time than to copy one after the other? [duplicate]
My boss was saying it takes longer to copy two files at the same time than doing one and then the other because the hard drive has to keep switching the head between the two locations on disk. Is this ...
2
votes
3answers
55 views
speeding up wakeup time / pauses with Windows 7 (64bit) on laptop
I'm looking both for some general advice, and any specific hints for my situation. (so please don't close as too localized, even the general advice is helpful)
General question:
I have a laptop, ...
0
votes
3answers
86 views
Windows File file listing painfully slow
I am using Windows 7 64-Bit Home Premium with 500 GB 7200 RPM Seagate Hybrid SSD drive.
Lately my system has slowed down painfully: listing file in a directory using Windows Explorer or any other ...
