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Questions tagged [performance-tuning]

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Why is gen2 ping latency much lower than other linux?

When I tried to optimize network latency, I noticed that gen2 linux ping latency is much lower than other linux systems (centOS, ubuntu, redhat, ...) For example, in my LAN gen2 rtt ping latency is ...
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Why does getting the filename is slow when a batch script is executed from a UNC path but printing the full file path is quite fast?

Here is the batch script present on remote machine: test.cmd @echo off echo %TIME% echo batch file path = %0 echo %TIME% echo file name without extension = %~n0 echo %TIME% echo ...
2
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1answer
80 views

I have windows xp media edition on my PC and i need to free up space

I have a 80 gb hard drive.Can i delete some system volume information files? Also should i delete program setup files after setup is complete?
0
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1answer
97 views

How can I improve Windows Defender's increase of executable startup times?

I have a collection of scripts which call, a couple of thousands times, an external executable. This executable should have a fairly low run time, so this should not a big deal. But it is. In fact, ...
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0answers
241 views

Why is my ZFS pool spending 97% of its time reading the target and only about 3% writing, on a write operation?

This perplexes me and I don't know a way to drill down into what ZFS is actually doing. I'm using a clean install of FreeNAS 11.1 with a fast ZFS pool (imported mirrors on fast 7200s) plus a ...
2
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1answer
96 views

How can I track down what is causing my mouse to hang?

I am trying to eliminate a random (and quite frustrating) behavior. At seemingly random intervals my mouse (a corded Razor Mamba) doesn't respond. I have stripped out just about every imaginable ...
2
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0answers
178 views

Run out of virtual memory after added to triple physical RAM and change SQL Server memory option?

Recently, we added some physical RAM to our server which running SQL Server 2008 R2 instance, the total memory was changed from 64GB to 192GB. And we tuned the memory option of SQL Server by changing ...
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1answer
220 views

Remove IHS from DIE, why so hard?

I have a CPU that is very cheap, I decided to try to remove the IHS from the DIE to become experienced in tuning. But it is pretty hard. I surrounded the DIE with blades, the glue still hold the IHS ...
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1answer
43 views

Windows setting to run services faster

I run several server and processing tasks on my computer while I'm away. I found a setting builtin to Windows 10 once to optimize for background programs, not regular applications. For the life of ...
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0answers
379 views

VirtualBox - high performance I/O tuning - is it possible?

I'm running workstation that heavily relies on virtualization. I chose VirtualBox because: unlike VMWare it's free and much more portable and maintenance-free (no need to troubleshoot issues with ...
0
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1answer
680 views

CPU burst tuning with Windows 10?

I upgraded from Windows 7 to Windows 10 and I'm seeing very short slowdowns/freezes which didn't occur in Windows 7. It seems Windows 10 is using more sophisticated power saving techniques or is more ...
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596 views

How to tune Windows 8.1 for having maximum number of TCP connections?

I need to tune my windows 8.1 for a web scraper I am using thousands of threads for concurrent crawling For crawling process, i am using my own written c# HttpWebRequest using crawler However i am ...
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2answers
4k views

Should I connect a NAS to a router, switch or access point for optimal in- and outbound performance?

I've got a NAS Router (downstairs) Access point (upstairs) Switch (upstairs) Each of these devices is connected with simply CAT.5e gigabit cables. Currently the NAS is connected to the switch, which ...
0
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1answer
93 views

Will increasing physical RAM help in less virtual memory usage and avoid virtual memory bottlenecks in Linux?

In Linux, for a 8GB RAM server, when could we say virtual memory is actually used more? I.e., what is the number of page faults which says system is using more virtual memory?
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230 views

How to turn off hyperthreading on hp z230 Win7 32bit

I have a legacy application that when ported to this new HP desktop exhibits performance errors. I need to disable hyper-threading on this desktop. It has an Intel I5-4095 quad core processor. The ...
5
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1answer
2k views

Adjust linux disk flush intervals to avoid blocking user processes

I'm downloading files on a sd card mounted on a raspberry pi using rtorrent, at around 6MB/s (bandwidth cap). The user process doesn't flush the data itself, and the interval at which the disk cache ...
0
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1answer
113 views

Upgrade questions

Hi I just upgraded from i5-3450s with Intel HD 2500 to i7-3770s with Intel HD 4000. I also increased RAM from 8GB to 16GB. I have an HP Omni 27. Windows 7, x64 Direct X Version is 11.0, Shader ...
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2answers
113 views

Degraded performance on using external disk

I am fairly new to MacOS, been using Ubutnu from beginning, i was forced to switch to MacBook for work reason. My issue is that when i plug in my 2TB WD passport hard disk, macbook sort of dies....
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0answers
785 views

Speed over VPN is 10x slower than connection to VPN or VPN<=>Destination

I'm trying to setup VPN for my own use. I have noticed very strange issue with speeds which I struggle to understand. Question: What is causing slow download speed from AWSFrankfurt when using VPN? ...
3
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1answer
7k views

Undervolting with Intel' XTU - which offset should you reduce?

It is a pretty basic question, but I could not find an answer to this via Google. The value you are supposed to adjust is the "voltage offset". However, there are two kinds of values in the utility ...
0
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2answers
95 views

Adding too many plugins/extensions to a browser, affect browsing speed?

I am using extensions added from the official websites like https://addons.mozilla.org/en-us/firefox/extensions/ , https://chrome.google.com/webstore. If the answer is Yes, is there any way to find ...
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1answer
87 views

Control of CPU performance, possibly P-state, for TV recording

The problem: I am trying to record TV using a Toshiba Satellite Pro (2GHz, dual core, 4GB RAM, 250GB SSD, W7/32 SP1, PCTV 292e USB receiver, Argus TV recording s/w), but am having recording dropouts, ...
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2answers
2k views

What TCP / network tuning should be performed in Windows 7 for best internet performance without reasonable risk of causing issues?

I'm wondering what network / tcp tuning should be done in Windows 7 to ensure best performance (yet without reasonable risk of causing issues). Here's what I have so far (the below commands get run ...
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1answer
272 views

Does System Utilities Slow Down My Pc Rather than Speeding It Up?

Is it correct that PC System Utilities are fake; they just slow down your PC rather than speed it up? Can I trust PC System Utilities like System Mechanic, WinOptimizer, Advanced SystemCare PRO, ...
2
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1answer
1k views

LibreOffice Calc performance tuning

I have 350 thousand rows in a LibreOffice Calc table (it's a 35 meg CSV file). I only need to view it, not edit it. Yet, it is very slow at scrolling, filtering, and selecting the cells. What can I ...
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2answers
326 views

Win7: Is there some trick to speed up display a folder's content or the right click menu?

I'm using Windows 7 SP1, now whenever I click on a folder, the File Explorer takes quite some time to display the content inside; also when I right click on a file, the menu also comes quite slow. ...
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1answer
5k views

Localhost tcp throughput performance differences

I have been using psping for measuring bandwith statistics on localhost on different computers: laptops, home computers and servers. All of them get to between 100 and 200 MB/s but my PowerPc at work ...
0
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1answer
103 views

The relationship between commit charge, standby lists and available physical memory?

Saw this thread but I believe it does not fully answer my question so here goes. I am on Windows 8 Enterprise, 4 Gb RAM on board, pagefile enabled. I am looking at my performance indicators and I see ...
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2answers
1k 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?
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2answers
77 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 ...
0
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1answer
3k 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 ...
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110 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, ...
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2answers
558 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 ...
0
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1answer
99 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 ...
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3answers
210 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 ...
0
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1answer
344 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 ...
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6answers
3k 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
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1answer
27 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
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1answer
1k 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 ...
2
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2answers
214 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 ...
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1answer
9k 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 ...
2
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1answer
527 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 ...
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0answers
915 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 ...
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1answer
3k 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! ...
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2answers
295 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
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1answer
4k 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 ...
3
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1answer
2k 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 ...
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0answers
110 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 ...
0
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1answer
6k views

AMD CCC and best 3D performace

Which settings in the AMD Vision Engine Control Center does heavily affect 3D rendering performance? This is what i have in the "Gaming->3D Application Settings" section: I'm aiming to alter only ...
3
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2answers
5k 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 ...