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

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1
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3answers
3k views

Microsoft Performance Analysis: how do I know when the boot process is done?

I got the program to work, but I can't seem to figure out how to get boot events. I tried actions, but Microsoft's documentation is severely lacking. I was able to use the boot manager with the ...
15
votes
8answers
20k views

How to measure disk-performance under Windows?

I'm trying to find out why my application is very slow on a certain machine (runs fine everywhere else). I think i have traced the performance-problems to hard-disk reads and writes and i think it's ...
1
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0answers
176 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). ...
2
votes
2answers
50 views

New HDD (HGST HTE541010A9E680 1Tb) very low write speed (<10 Mb/s)

I've just bought a new 1Tb HDD: HGST HTE541010A9E680, formatted it as NTFS (tried both quick and full format). It has very low write speed. I also have other HDDs and SSD on this PC, and they have ...
3
votes
3answers
3k views

Tuning performance of Ubuntu 10.04 on Compaq Evo W4000

I got this computer free and installed Ubuntu 10.04 on it + updates, plus followed the following tutorial all the way: ...
3
votes
1answer
16k 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
0answers
12 views

How to prevent Safari from slowing down Javascript web-apps when entering background? (OS X)

I remember that one of the latest Safari versions has a feature that makes Safari consume less resources by slowing down Javascript and Flash on inactive (background) tabs. Unfortunately I have a tab ...
0
votes
0answers
23 views

installed 64-bit W7 on Core 2 duo slow pc

CPU: Intel Core 2 Duo P7350 2.00Ghz RAM: 3GB Hi I recently cleaned and installed Windows 7 on my 3 year old laptop. And it seems most programs are running incredibly slow when starting up a program ...
1
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3answers
531 views

Slow HDD test results: Symptom of slow PC or the cause?

My computer is very slow at the moment and the only thing that I can think that has changed is the disk space utilisation. I did a test of my HDD read/write performance which seems slow for my drive. ...
1
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1answer
2k views

Flash stream makes my internet slow and cpu rush

When I try to watch a live Flash stream, my CPU usage goes up to 75% and my Internet speed goes down. If I run a test before the video-stream, my speed is ~40/10Mbps and during the stream it drops to ...
1
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1answer
42 views

what is the minimum CPU speed we need to test an application for 100 virtual users load?

The application uses Windows domain for its authentication, followed by one more layer of authentication. I'm trying to run 100 virtual users on this application using JMeter, but seeing 100% CPU ...
0
votes
2answers
2k views

How do I improve picture quality while streaming live football (soccer) from my Dell D600 to an HDTV?

I have fibre broadband with speeds up to 38mbs, my Dell D600 has its max 2gb ram and has an ATI Mobility RADEON 9000 4xAGP 32mb card in it...Its TV support it says is NTSC or PAL in S-video and ...
0
votes
2answers
48 views

My laptop goes super slow time to time again for no apparent reason

I have Windows 8.1 OS installed on my HP 6530b Notebook PC. For the past few days, it is behaving in a quite weird manner. It slows down for a while even when there is no user application running on ...
-1
votes
2answers
50 views

What kind of extremely exhaustive calculations my laptops perform and why? [on hold]

I have two laptops that I bought in 2013. One of them is running under Windows and another one has Ubuntu. I do not play video games, do not perform any calculations on them. The only thing that I do ...
-1
votes
0answers
22 views

Slow drive performance and utilization [closed]

suddenly, my internal hard drive slows performance, reading and writing. I connected an external hard drive but its performance was normal, so it's not an operating system issue. on windows 'Task ...
0
votes
3answers
3k views

What can I do to make my VPN connection faster?

I am using hideman as my VPN, however I found that my internet browsing speed was significantly degraded when I was using VPN. I used speedtest.net without VPN and I got 5Mbps, and when connected to ...
0
votes
0answers
21 views

USD: unexpected, unexplained SLOW-DOWN

Sometimes, my laptop is providing me with very strange behavior. When i have several (10-20) tabs opened in Opera or Chrome, uTorrent running etc., nothing special, in such casual conditions happens ...
38
votes
10answers
4k views

Which malfunctions cause old computers to slow down and crash?

I've had a few computers of my own break after a few years of use, and I've seen computers owned by friends and family do the same thing. They either slow down (even running the original software ...
2
votes
3answers
3k views

Notebook with NVIDIA Optimus not switching video card in games

I have a Samsung RC720 notebook with Intel Integrated Graphics and NVIDIA GeForce GT 520M. As you can see it has two video adapters and Optimus is supposed to switch between them. But when I choose ...
0
votes
1answer
60 views

Which is the most CPU-efficient virtualization solution on Linux? [closed]

I am interested in the following problem: When running CPU-intensive tasks inside a virtual machine, there is a certain CPU overhead, i.e. the same task takes a slightly longer time to run inside a ...
1
vote
2answers
96 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 ...
0
votes
0answers
12 views

Books on web scalability, performance, optimisation [closed]

I wonder what books could you recommend on above subjects. I had a look on Steve Souders books but it seems that they are bit outdated. Web Optimization by Andrew B. King was published in 2008 so also ...
0
votes
1answer
53 views

Slow LAN connection (especially receiving) on Windows 8

I was diagnosing my SMB performance issues when I noticed my whole network speed was off. These are my benchmarking results between my desktop and my Linux server: Both are connected using CAT6 and ...
3
votes
3answers
160 views

Can slow VM be due to CPU, even if its utilisation percentage is low?

I run 2 VMs. Those two VMs are not doing any CPU intensive tasks, and the host machine has a Sandy Bridge Celeron CPU, 8GB of DDR3 RAM and conventional HDDs. When I checked the CPU usage, it is not ...
1
vote
0answers
43 views

Why is ATI Radeon HD7850 performance on Mac (Hackintosh) not as good as on Windows? [on hold]

I am running Mavericks 10.9.2 with QE CI patch (working kext). However the performance in games is pretty low (<30fps, @1920x1080, no AA) My system specs are: Core i5 750 @3.3Ghz 16GB DDR3 ...
3
votes
4answers
3k views

Will ReadyBoost help at 8 GB RAM development machine?

I have Dell XPS 15 with 8 GB RAM, Windows 7 x64 with 7200 rpm HDD, and I do Windows-based development on it - ASP.NET, SQL Server, Windows C# apps, etc. Will attaching 8/16 GB fast USB stick speed ...
11
votes
4answers
7k views

Fast VNC from Windows to Mac?

I regularly need to connect from a Windows box to an OSX box over VNC. OSX has VNC built-in as part of its "Screen Sharing" tool, but for some reason, it's much faster to connect from OSX to OSX or ...
0
votes
1answer
37 views

Mixing rams with different frequencies and sizes

I have a computer with 2× 1 GB DDR3 1067 MHz RAM modules. Now I bought 2× 2 GB DDR3 1600 MHz modules. My questions: Should I remove the 1 GB modules and use the new ones only (2× 2 GB = 4 GB ...
0
votes
2answers
2k views

Slow internal disc to disc file transfer speed

I ran the HDTune drive monitor while I was transfering about 80 GB of various sized files, most of which was running about 40 MB/s, but you can see where it spiked down to under 1 MB/s. ...
0
votes
2answers
54 views

Firefox bottleneck with lot's of tabs open?

I'm currently using Firefox 28.0 on a windows 7 system on a SSD. Sometimes, when I do some research, I open about 180 + tabs on my machine. This makes firefox super slow, without using the SSD or CPU ...
0
votes
1answer
7k 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 ...
5
votes
6answers
12k views

How to bond two different internet connections

I have two internet connection, each with 4mbps bandwidth. I want to join/merge both of them to get 8mbps speed, both routers have WLAN and LAN capability. How to Double my speed using two routers? ...
52
votes
5answers
10k views

Why are USB flash drives so much slower than solid-state drives?

From what I understand, USB flash drives and solid-state drives (SSDs) are based on similar technologies, NAND flash memory. But, USB flash drives are usually quite slow, with a read and write speed ...
0
votes
1answer
27 views

Are there performance benefits of using 127.0.0.1?

I administrate a web application that runs on Windows IIS. Recently during an upgrade I saw the following message: "Could not connect to webapp-01:1000" I think that the web app and the windows ...
6
votes
6answers
21k 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 ...
1
vote
2answers
43 views

What will give the most increase in Virtual Machine performance?

Our IT staff has been given the task of improving the performance of all of the VM's used at our company. This includes those remoting into a hyper-v server and those using their own VM's on their own ...
14
votes
2answers
67k views

What is svchost.exe (LocalSystemNetworkRestricted) when I see it in the Resource Monitor in Windows vista and why is it slowing me down?

Sometimes, when my computer is frozen and just about unusable, it seems that the cause is some heavy background processing. Sometimes, I can catch who is using all my disk-bandwidth using Resource ...
0
votes
2answers
36 views

How can I find out which parts of an Excel workbook are the biggest in size?

I have an Excel .xlsx that weights 47MB. I'd like to know which parts of the workbook are the heaviest and work them, since I haven't made much progress manually trying to identify and reduce the ...
0
votes
3answers
34 views

How to give 100 percent CPU usage to a process

(windows 8.1 machine with i3) Is it possible to put a process using 100% of my CPU? I have a rather "slow poke" CPU and after a while working with an application, it gets really slow. I'm wondering ...
0
votes
1answer
113 views

What does cpu MHz mean in /proc/cpuinfo?

I own Quad-core Core i5 laptop. I got curious to know how much time it takes for my laptop to execute a simple instruction. So, I did cat /proc/cpuinfo. Below is the relevant portion of it, model ...
0
votes
0answers
20 views

Groovy performance on Linux machine

I have a problem when I start Groovy on one of my Linux machines - it takes about 30 seconds to execute very simple command: groovy -e "" if I run strace on it, here is what I see where it stops ...
3
votes
3answers
2k views

Why does my general frame rate slow down to 40fps randomly?

This has been bugging me for a while. Every once in a while, I find my computer to be sort of laggy and I thought it was because it was busy or something. However, I recently noticed that it wasn't ...
0
votes
0answers
9 views

Filesystem vs Object Store

Few months ago I created a PHP storage service, that serves as a bridge between our filesystem and web applications via its REST api. File metadata and file path (and "clustering" per storage type) is ...
1
vote
3answers
120 views

4 GB of RAM, only 2.67 GB usable

My laptop was using a 2 GB RAM and I thought it wasn't enough, so I bought a new 4 GB RAM stick. I have been playing graphic and memory-intensive games, such as Battlefield 4 (the Recommended ...
-1
votes
1answer
51 views

How to speed up my computer? [closed]

I just bought new computer last week. This is my computer information: Operating System: Windows 8 Pro 64-bit; Intel Core i5 4570 CPU 3.20GHz (4 CPUs) ~ 3.2 GHz Memory: 4GB RAM, page file 12 GB ...
1
vote
1answer
26 views

MIPS as a measurement of raw integer data processing

I'm looking for a way to contextualize generational differences in computing performance. Is this a correct application of the MIPS measurement? MOS 6502 - 0.500 MIPS at 1 MHz. As an 8-bit CPU it ...
-1
votes
0answers
45 views

What is causing high CPU usage while playing videos?

Watching movies uses all of my memory and/or CPU. How can I resolve this? Laptop specs: http://speccy.piriform.com/results/TncirsVxs1b3MnD58DoAGIz Dell XPS M1330 Intel Mobile Core 2 Duo T7250 ...
3
votes
4answers
2k views

Under what circumstances can/will a 10BASE-T device slow down a 100BASE-T or faster network?

Suppose I have a 10BASE-T device, but everything else on my network is 100BASE-T or faster. When I attach the 10Mbit device, one of two things could happen: It could be passed through as 10BASE-T, ...
2
votes
1answer
247 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 ...
0
votes
0answers
20 views

windows 7 in one wifi-network slow

My roommate's Dell XPS is incredibly slow in our new wifi-network (new router - Netgear R6250 with dualband 2,4 GHz + 5GHz, ac 1600), but another Windows 7 computer goes normal. In another ...