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0
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1answer
38 views

How to set permament TCP Windows Size in Windows XP

I'm checking real throughput of my network using iperf/jperf. Test with speedtest.net shows 25/10 - but jperf shows only 5. So I change in jperf the TCP Window Size into 256K - and now jperf shows ...
0
votes
0answers
26 views

Multipath tcp application-level performance measurement

I am working on a project related to Multipath tcp and I want to measure the goodput and the RTT at the application level. I don't want to use a traditional tool(netperf, iperf, ...) and I want to ...
-1
votes
2answers
25 views

Is software like tune up utilities essential?

Is software like tune up utilities necessary? Can't we perform the tasks using some other free ware tools and built in windows tools?
0
votes
2answers
26 views

What happens if use different ram chips?

I have an Asus M4A785TD-V EVO Motherboard. Considering this, What happens if I plugin 2 ram chips of different frequency and different latancies? Do both work independently at their respective configs ...
5
votes
1answer
1k views

How to turn OFF Translucent Selection Rectangle in the Windows Explorer (Windows 7)

This is Windows 7. In System properties -> Performance options -> Adjust for best performance It makes what I want only for the Desktop if I go into folder and try to select the files the ...
7
votes
3answers
670 views

Profiling your windows operating system

I am boggled when I click on an application in windows and have to wait 10 seconds for it to respond. I wonder "you can run 16 billion instructions a second, what are you doing that keeps you from ...
2
votes
0answers
57 views

Utilizing the full power of my workstation

I am not a gamer. Used to be, 10+ years ago. My workstation is strictly for business: Quickbooks Excel Access General Business QuickBooks is tied to a synchronization engine that is synchronizing, ...
0
votes
2answers
72 views

Advanced RAM configuration [closed]

I'm a little unsure about whether my current BIOS ram settings are the optimal for the RAM i have. I'm aware some RAM modules may configure themselves with a bit slower speed by default than what they ...
4
votes
5answers
2k views

How can I “tune-up” a somewhat 'crusty' Mac OSX 10.5 / Leopard Machine?

I recently inherited a pretty decent machine running Leopard. I'm kind of a Mac noob. This machine is (and has been) used by a small non-profit media team for editing video/media and such. It seems ...
0
votes
1answer
61 views

IntelliJ Idea for non-Java development

I want to use IntelliJ IDEA for its support of numerous languages other than Java (I can't imagine that I'll ever be doing Java at my current job -- and if I had to, I would just backup settings). I ...
0
votes
0answers
10 views

ext3 multi process write fragmentation

If multiple processes write to large files on an ext3 filesystem, like cping simultaneous, will the written files be interspersed in small blocks, or does ext3 handle the situation in a better way?
0
votes
1answer
37 views

Split database index and table files with SSD?

I know in the good old days it was recommended that indexs and tables were placed on different drives to improve database performance. Is this still the case with SSDs when connected with SATA3? With ...
0
votes
3answers
67 views

How to configure Windows 7 for high responsiveness 24 hours a day?

When Windows 7 operating systems is used one a production line, then it has to be configured appopriately. We do not want various services interfering with the software that has to be working with ...
2
votes
1answer
418 views

Make ReadyBoost cache more aggressively

I have always had a 32GB high-speed Transcend SD card in my laptop for ReadyBoost, but it isn't very helpful because Windows isn't making heavy use of it: the cache size is usually 2 GB or less and ...
28
votes
6answers
1k views

Programs minimized for long time takes long time to “wake up”

I'm working in Photoshop CS6 and multiple browsers a lot. I'm not using them all at once, so sometimes some applications are minimized to taskbar for hours or days. The problem is, when I try to ...
0
votes
1answer
16 views

how to compare installed programms on one pc with other performance issues

I have 2 laptops, both run Windows 7,identical configuration. One of them how ever is running extremely slow it takes a very long time to start up and shutdown and also if I need to run a programm it ...
3
votes
1answer
495 views

Send request body data when running siege

I am trying to use the command line utility Siege to load test a service. The service recieves json in the request body via a POST. I have a file called example-data.json with the json inside. I ...
0
votes
1answer
3k views

Where from/to install my.cnf for percona db

I am new to Percona db. I just realized that by default percona does not have a my.cnf file installed. I found this from, https://bugs.launchpad.net/percona-server/+bug/673844 In case, I need a ...
18
votes
5answers
2k views

CCleaner, is it just FUD?

Is there really any need for software like CCleaner? I really can't see how cleaning a few bits here and there and the registry and deleting temp files that will be back again in a few days help ...
0
votes
2answers
22k views

Disable Intel HD Graphics 4000

A while back, I called HP, asking how to disable the Intel Graphics and force the computer to use my ATI Radeon. They had me go through the BIOS settings, and I managed to get my laptop to only use my ...
1
vote
2answers
150 views

How many processes should I be running to be as efficient as possible?

Here is the situation: I am processing images, transforming them from tif to ecw and reprojecting them. The software I am using one uses one process, and only one core it seems. When I run a batch ...
1
vote
1answer
2k views

How to optimize Linux Mint performance

I'm running Linux Mint 14 on notebook. This notebook is rather old and really weak. Linux Mint shows better performance than Win7, but newertheless it's far from perfect. What can I do to speed up my ...
1
vote
1answer
202 views

IOPS - What are they and what do they mean?

OK I know technically what IOPS are. The technical definition is great but I'm not understanding the broader implications. My knowledge is basically: IOPS are the input and output operations an ...
0
votes
0answers
168 views

Is a remote desktop session a background service

I have some virtual machines (xp, windows 7) running on hyper-v for developing and testing purpose. I access those vms only by remote desktop and run on them various software I was wondering if i ...
3
votes
1answer
497 views

Increasing value of sched_latency_ns and sched_min_granularity_ns

Why do I get an error message when I try to increase the values of these two parameters: #cat /proc/sys/kernel/sched_latency_ns 1000000000 #echo 2000000000 > /proc/sys/kernel/sched_latency_ns ...
0
votes
1answer
830 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! ...
-1
votes
2answers
117 views

How to disable Windows UAC totally, leaving no parts of its mechanism in memory? [duplicate]

I know the question of disabling UAC is quite popular and has already been asked here, but my question is more specific. What I seek is not just to get UAC out of my way but to release all the system ...
3
votes
1answer
1k 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 ...
1
vote
1answer
4k views

How much memory does this java process consumes? pmap and top's result are conflicted

I just want to know the exact amount of memory one process consumes. pgrep java -l 21786 java The total memory I have is 1GB: [root@home tmp]# free -m total used free ...
5
votes
0answers
83 views

How does Windows page when there are multiple pagefiles on multiple disks? [duplicate]

Let's say I have two internal HDDs and configure Windows to place pagefiles on both of them. How do pagefile writes occur? Are pagefile writes spread evenly across the disks? Does Windows prefer ...
2
votes
1answer
803 views

How can I optimize Mac OS X network log in time?

I'm running an Open Directory server (Mac OS 10.6.7 Server) and a bunch of Mac clients (Mac OS 10.6.7). On the clients, logging in to a local account is fast (less than 10 seconds between pressing ...
5
votes
3answers
7k views

Increase Outlook 2013 performance?

I feel that Outlook 2013 (compared to Thunderbird) is quite slow at e.g. changing between mail view and calendar view - is there any way to disable e.g. the animation of the transition between mail ...
1
vote
2answers
2k views

Why is rsync slower than NFS?

Using rsync for copying some large files (24MB each): bronger@steed:/tmp$ time rsync -r root@my_nas::media/distortion . Password: real 0m18.128s user 0m2.600s sys 0m5.756s (Substract 2 ...
-1
votes
1answer
73 views

How do I raise the ping of one of my ports on my Linksys Cisco WRT160N v2 Router?

I'm a real newbie when it comes to computers, internet, networking, etc. but I'm an avid gamer. And I play a game (on my PS3) which plays best at a higher pings (slower speeds) for some reason beyond ...
3
votes
1answer
217 views

Using HDPARM to tune drives

Can HDPARM reallt be used to tune and enhance performance on drives? I've seen tutorials but does it really make a difference?
3
votes
2answers
11k views

What are the best WiFi settings for my situation?

I am trying to tweak my WiFi settings on the router and on my laptop so I can enjoy using the WiFi at my attic. For now I only get headaches because I cannot move freely around with my laptop at the ...
2
votes
2answers
4k views

How to tune MySQL for restoration from MySQL dump?

My little 5GB database which takes 5 minutes to dump via mysqldump, takes 9 hours to restore. Luckily I found this out during a test-run, not an actual emergency situation. What are the best ...
0
votes
1answer
2k views

How can I find the processes which use the most memory? [duplicate]

Possible Duplicate: How can I display the memory usage of each process if i do a 'ps -ef' For example, how can I find the top 20 processes that occupy the most memory? My Linux ...
2
votes
4answers
231 views

What could cause a computer to slow down over time?

I have an application/game that ran smoothly a few months ago but lately I've realized it runs more sluggish than usual (the frames per second get quite low). I thought maybe something I installed is ...
2
votes
1answer
504 views

Optimum Swappiness for a Linux System

I have a 64-Bit Linux PC with 4 GB of RAM. How can I find the optimum value of swappiness (/proc/sys/vm/swappiness) to be set? The default is 60 and I don't think it works best for everyone. I am ...
1
vote
0answers
68 views

Which Windows services and startup programs can I disable/modify to optimize performance/security?

For Windows Vista SP2 and Windows 7: I use this stand-alone (no LAN) computer at home exclusively to browse the internet, nothing else!.. I have another computer I use for development and testing ...
1
vote
2answers
131 views

Stop services when not used

My PC is installed with softwares like Visual Studio 2010, SQL Server 2008 etc. I need these softwares very rarely, for example once in a month. How can I improve my PC performance by stopping ...
1
vote
1answer
2k views

Ubuntu slows terribly on disk access

I'm very new to Linux systems but not computer systems. I installed Ubuntu on my laptop and it took a little longer to load then I'd like but seemed okay. The problem showed itself more seriously when ...
0
votes
1answer
993 views

Lightroom 4 slow to render in Develop mode; what part(s) of my PC is/are dogging it?

I made the jump from Picasa to LR4 and switched to shooting RAW in the process. The software boost did not come with a PC boost, but I didn't think it would be necessary; my machine seems adequate ...
0
votes
2answers
430 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 ...
2
votes
2answers
422 views

Two hard drives: same specs, different speeds. Need to find the configuration issue

I have two nodes (with 3 dedicated data drives each) that are showing drastically different write speeds. Their 'hdparm' output looks identical and their 'hdparm -t -T' output is comparable but ...
5
votes
3answers
443 views

Measure Windows bootup performance [duplicate]

Possible Duplicate: Slow startup on Windows 7 Home Premium laptop I'm running Windows 7 Home Premium on a 2 GB RAM netbook. The Windows startup performance, and when coming out of ...
1
vote
1answer
734 views

Ubuntu Linux running VirtualBox with Windows 7 as a guest OS

I have a Dell Precision 490 workstation computer which I installed the latest version of Ubuntu Linux on. It has 8GB RAM, and Dual Xenon CPUs, so a total of four cores. The problem is I give my VM ...
4
votes
1answer
266 views

GPU running underclocked / under normal speed?

I have tried to overclock my card. Seemingly it worked, and the GPU-z shows the OC speed (see GPU3.png). However, current readings are REALLY far from the normal speed of the GPU. That's what I can't ...
1
vote
1answer
228 views

Linux swap position on hdd

As far as I know hard drives are faster at the beginning of the disk. If this is true, why does Ubuntu put the swap partition to the back of the disk by default?