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

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6
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1answer
1k views

Performance gains from secure-erasing an SSD?

Are there performance gains to be had by secure-erasing an SSD? (the secure-erase function, not securely zero'ing out data) I'm using an Intel 320 SSD 160GB as my main OS drive. It's been a couple ...
6
votes
1answer
3k views

RamMap “Empty standby list” drastically speeds up PC. Is there a better way to do this?

Many people are educated on how Windows Memory manager caching work by reading Microsoft white papers, etc. However, there are relatively few documents that describe real-world performance issues ...
4
votes
1answer
137 views

High I/O system hanging

I have a Fedora 20 box that i'm trying to import a massive amount of data in to postgres on (billions of rows). System spec: 16GB RAM, 6 core 3.2 ghz, 500GB RAID0 PCIe SSD Everytime I/O load gets ...
4
votes
1answer
1k views

Is there anyway to simulate Windows 8 running off a microSD card? (Limit the I/O speed)

I would like to install and boot Windows from a microSD card using the Nifty MiniDrive, however, before I pay for the device and microSD card I would like to see the performance differences between ...
4
votes
1answer
603 views

Windows 7 gets stuck with ~1% CPU. Especially with multithreading

Windows 7 32 bit, up to date, Intel i7 860. (For some reason the company runs 32bit Windows everywhere.) I tried to update all motherboard drivers etc. as far as possible. I have a performance issue ...
3
votes
1answer
801 views

VMware Fusion performance degrading after few hours

I've been having an issue with VMware Fusion for some time now, where the VM (running Windows) runs fine initially, but will slow down to a grind after some time (best guess is a couple of hours). ...
3
votes
1answer
14k views

TiWorker.exe - Very High CPU Usage

I have a laptop running Windows 8. Although it originally ran well, it started having very bad performance issues. I decided to perform some research into the topic. Opening up Task Manager, I ...
3
votes
1answer
2k views

High Disk I/O and CPU usage of System Process in “System Volume Information”

I've a problem with high disk IO and cpu usage from the system process. With the performance monitor I can see that it writes and reads about 100MB/s froM "System Volume Information". I tried to get ...
3
votes
1answer
441 views

Does Intel OpenCL implementation use both CPU and GPU?

recently I wrote several versions of the same program (generating Julia Sets - fractals pictures at size 17200x17200 pixels) to check the performance of a few different solutions. I wrote versions: ...
3
votes
1answer
334 views

Terrible multi-threaded performance in Kubuntu in VirtualBox in Debian machine

We have an unpleasant performance issue when running our multi-threaded rendering software inside a virtual machine. We are running Kubuntu 12.04 in a VirtualBox 4.0.10_Debianr72436 which runs ...
3
votes
1answer
149 views

How can I pin point a USB file transfer bottleneck in Unix?

I'm experiencing very slow data transfer speeds over USB 2.0 on my nix box and was wondering how I can pin-point the cause of the problem. I've looked into iotop and top but the cpu and mem figures ...
3
votes
1answer
159 views

Joining G+ Hangouts slows the mouse to a crawl

Using a dual-display setup on a quad-core, win 7 desktop computer, whenever I join a Google Plus hangout, my mouse slows considerably down. Problem persist even after closing all Chrome windows. ...
3
votes
1answer
602 views

How does one troubleshoot Windows hanging copying large files from external HDDs?

When I copy large file (for example over 4GB) from external WD MyBook USB 3.0 HDD to internal SATA2 HDD all of Windows just freezes. Copying files of any size on internal HDD is fine. Today I copied ...
2
votes
1answer
2k views

Google chrome high hard disk usage

I'm on Windows 7 from boot to VHD. I got a lot of RAM and my pagefile is disabled. This OS can be up for days, even up to 3-4 weeks of working time without restart. I put it to sleep\suspend quite ...
2
votes
1answer
647 views

Gentoo LDFLAGS optimizations really needed?

I'm using Gentoo Linux. Here is my toolchain: sys-kernel/linux-headers-3.9 sys-devel/binutils-2.23.1 USE="cxx nls zlib -multislot -multitarget -static-libs {-test} -vanilla" ...
2
votes
1answer
261 views

A fast modern network filesystem to replace VirtualBox's shared folder emulation

My work code repository is stored in host Linux system, and is accessed from Windows guest; currently, guest can access the repo via 'shared folder' which looks like a samba emulation. But, it just ...
2
votes
1answer
245 views

Windows 8 Performance Tools recommendations: Undo “remove from list”

In the Windows 8 "Performance Information and Tools" Control Panel, there's an advanced section that shows detected performance issues. If you click on one, it opens a small dialog summarizing the ...
2
votes
1answer
182 views

Samsung 830 256GB ridiculously slow with SATA1

I'm well aware that my 6 years old laptop with it's SATA1 bus can't fully benefit the new Samsung 830 256GB SSD. It's OK if it's the bus that caps the transfer speeds. SATA1 is fast enough for me. I ...
2
votes
1answer
192 views

Windows 7 64-bit Random Slowdown when developing C/C++ Applications (any IDE or Compiler), Installing or Searching for WIndows Updates, etc

I originally posted this on stack overflow and realised that it was OT for there. I hope it is not an OT here as well. My problem first started when I was using an Open Source C/C++ Library called ...
0
votes
0answers
523 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
0answers
223 views

Extremely slow printing (1 cps or so) on linux

I have a generic printer (text only) connected to a linux PC via parallel port but suddently it will just refuse to print at a normal speed. Form a cople of pages per minute I'm stuck at a couple of ...
0
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0answers
698 views

Internet is extremely slow after using VPN (and exiting/restarting)

I'm a student at Penn State, and for my engineering class I use a program called SolidWorks. Penn state provides me with a fully licensed edition of this program, but for it to acquire a license I ...
0
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0answers
384 views

How to align Linux disk partitions without data loss?

As you know, 512B sectors is still used in file systems of most current Linux distributions while the hardware, i.e. physical disks are typically made with 4K sectors. The misalignment of logical file ...
0
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0answers
80 views

Is Windows 7 on a SSD slower if I use Windows integrated mirroring?

Yesterday I configured Windows software mirroring for my SSD and one of my HDD, because I don't want to loose any data from the SSD. Now Windows seems to be much slower. Is mirroring in Windows 7 so ...
0
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0answers
70 views

Slow router page connection

I can log into my router using my router IP as expected. However, I get a very slow connection when I'm in the router management web interface. The internet connection is perfect, everything else ...
0
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0answers
201 views

Sudden severe performance Issues with Windows Home Server 2011

I have a Windows Home Server 2011 box with an Athlon 64 X2 dual processor, 6Gb RAm, and 4 2Tb disks configured as a couple of mirrored raid arrays. I use this box to run nightly backups of the 4 ...
0
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0answers
100 views

Incredibly slow response when reading from mounted shared network (windows share) drive within Java application

I wrote a Java application that checks and indexes huge archive files. When i test it on my local machine, everything is speedy and works like a charm. However, i need to process large quantities of ...
0
votes
0answers
316 views

How to avoid slow startup / OSX won't save spotlight index?

Lately I've been having issues with osx taking a CRAZY long time to start up. Every time it does start, I have this hunch that, considering how hard spotlight is working after startup, that it might ...
0
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0answers
134 views

Bluray Burner suddenly disappeared from Windows and very slow boot

Very fast computer with raid 0 SSD's used to boot very quickly, but recently I tried to burn a disc but couldn't find the drive anywhere, device manager, show hidden devices, disk management, NO where ...
0
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0answers
144 views

Sites with Google Maps slowing to a crawl

In Chrome (and, strangely, also in FireFox to a lesser extent) I'm having a problem with sites that use Google Maps: GMaps itself, Bikely, Strava etc. After a while, rendering of the map gets ...
0
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0answers
91 views

work with huge 15000 lines excel files containing formulas

We work on a huge excel file. it contains a sheet setting 22000 lines We use Excel 2011 on Mac and Windows on Intel i7 with 8Gb Ram. We have disabled the automatic computation of the file the file ...
0
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0answers
186 views

VMware server issues with page file and dynamic memory

I'm having significant issues on our dev server and since our systems support won't maintain it I'm trying to determine our issues. Right now we have 2 GB of memory, allocated dynamically by VMware ...
0
votes
0answers
80 views

When I do SCP of big files my Mac becomes very sluggish

Whenever I try to use SCP to upload files to my server, performance goes down. It slows down so much that I cannot even see the mouse pointer. I have a MacBook AIR i5, with 4GB of RAM. I don't see a ...
0
votes
0answers
337 views

CentOS VM is slow on Windows 7 64-bit

Setup/version numbers Guest OS: CentOS 6.0 64-bit (installed from LiveCD) RAM: 1 GB Processors: 1 Hard Disk: 20 GB Host System: Lenovo T410 OS: Windows 7 Professional, 64-bit (Build 7600) ...
0
votes
0answers
249 views

Why Windows Server (2008 R2) opens text file slower than Windows Desktop (XP)

I'm running several virtual machines (VMware workstation) on my physical PC (which is a Windows 2008 R2, Core i5 650 and 8 GB DDR3 RAM dual channel): 2x Windows Server 2008 R2 and 1x Windows XP 1st ...
0
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0answers
458 views

Windows 7 goes silent out of nowhere

I have a very annoying and weird problem. During run-time my sound disappears but the volume control shows that something is playing. I can't hear anything though. I noticed that all my media players ...
0
votes
0answers
65 views

Linux RHEL-W 6.1 laptop slows suddenly with fan running hard

I have an 8-core Linux laptop that's been working fine, but the last couple days of last week it started to suddenly run slowly. My project build takes about 8 times longer than normal. The fan will ...
0
votes
0answers
567 views

Why am I getting worse performance with the ATI Radeon HD 5570 than other people report?

I bought a computer a little while ago that has two ATI Radeon HD 5570's in it. First, my computer's specs: Motherboard: Gigabyte GA-880GA-UD3H AMD Phenom II X6 1055T 2.8GHz 8GB DDR3 1.333 Ghz RAM ...
0
votes
0answers
971 views

Laptop battery charge rate is very slow

My laptop battery charge rate is very slow. It charges between 50% - 100% in almost 4, 5 hours. Is it battery or charger problem? I have changed my laptop battery 4 months ago but the charger is 4 ...
0
votes
0answers
349 views

Slow internet on one computer (Ubuntu) but not the other (Windows 7)

I've been having a problem for the past week or so regarding my internet connection. I have a 10MB/s virginmedia broadband that's really fast when I'm the only one to use it (with an Linux machine). ...
0
votes
0answers
95 views

HD footage playback is slow on my computer

I have an MSI X58 Pro Bord with an i7 processor and 6 GB Kingston memory. My VGA card is ATI RADEON HD 5850 and I have 2 hard disks of 1 TB size. The Power supply is a 700W/80 plus goldkist. I run ...
0
votes
0answers
268 views

External HDD sometimes slows down MacBook Pro

I have an external HDD which I leave attached to my MacBook Pro for most of the time. Sometimes when the system is slow to response to a UI action, I notice that the MacBook is taking time to whir ...
0
votes
0answers
101 views

Applications crawl whenever they are on my third monitor

I have a third monitor that whenever I interact with any apps on it, everything crawls. The mouse moves slowly, apps redraw slowly, etc. It's driving me nuts as you can imagine. I'm running Windows 7 ...
0
votes
0answers
545 views

What is the best software to test disk IO in Windows 7?

Possible Duplicate: What files are accessed often? Hi any recommendations on some good free software to test disk IO in Windows 7? I will be running a dedicated SSD swap drive and also ...
0
votes
0answers
361 views

Slow Image serving (Windows7 Home + Atom CPU)

I am in the process of rolling out a touchscreen display system that uses Win 7 Home, IIS, SQL 2K8R2 Express all running on an Intel Atom platform. I am finding that images (served straight from disk ...
0
votes
0answers
340 views

Slow video performance with 4 monitors. What's the cause?

I recently installed another video card and added two more monitors to my work setup. Opening RDP windows and expanding the start menu cause the box to slow, mouse to jump and is a real productivity ...
-1
votes
0answers
26 views

Windows 8 Slow File Transfer (but 1gb sequential benchmark fine)

I'm using Windows 8.1. File transfers (between disks, over gigabit network) are limited to 10MB/s, but CrystalDiskMark 5x1000MB benchmark shows 139MB/s r/w speeds. I have no antivirus installed. File ...
-1
votes
0answers
30 views

Slow USB Transfer Speeds (USB 2 & 3)

I have recently purchased an Alienware 17 and I have all the current drivers from the Dell website but my USB 2 and 3 write speeds are very slow. My old computer which had lower processing power, ...
-1
votes
0answers
22 views

Linux healthy number of major page faults

I have a Solr process which has mapped 100 GB into virtual memory. When I run a load test on the query side, I read from /proc/<pid>/stat that the process has between 200 and 500 page faults per ...
-1
votes
0answers
50 views

Troubleshoot System Performance Problems

I am running Windows 8.1 PRO N on my Samsung Chronos Series 7 laptop http://www.samsung.com/us/computer/pcs/NP780Z5E-S01UB-specs It is a development machine, it has Visuals Studio 2013, SQL Server ...