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

learn more… | top users | synonyms (3)

0
votes
0answers
129 views

Why does the same RAM chip benchmark 2x faster on Intel CPUs?

Compare memorybenchmark.net's benchmarks for the "Kingston KHX2133C11D3/4GX 4GB" chip in the read uncached ddr3 intel vs read uncached ddr amd benchmarks. The Intel speed is listed at 14,881 MB/s , ...
0
votes
0answers
436 views

Windows server 2012 becomes slow

I have a server with following configurations. This is new IBM X3630 M4 server established before one month. Processor : Quad core Xeon E5-2620v2 single processor RAM : 8 GB NIC : 2x 1GbE HDD : ...
0
votes
0answers
341 views

xbootmgr failing to run a trace, couldn't find a kernel logger

I am attempting to run a boot trace on a computer that is slow to log in using xbootmgr. It is a Windows 7 Professional computer that is on a domain. Based on the guide on this website: ...
0
votes
0answers
21 views

Is there a way to run a job exclusively on a chip?

We've got a bunch of large (1TB+) NUMA machines at work and have been getting a lot of noise in benchmarking. We've noticed that run times for our application are very consistent from one run to the ...
0
votes
0answers
343 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 ...
0
votes
0answers
54 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 ...
0
votes
0answers
32 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 ...
0
votes
0answers
22 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 ...
0
votes
0answers
30 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 ...
0
votes
0answers
759 views

Low CPU performance with low usage and clock - Windows 8.1

I recently deleted everything from my PC and reinstalled Windows 8.1 from scratch. When I first booted into Windows everything was extremely slow though the CPU usage was very low (about 1%). After ...
0
votes
0answers
23 views

How to estimate the behaviour of a specific process in a non-ideal world?

I am trying to estimate the performance of a specific program (let's call this program as P) that is running on multi-core Linux computer. Currenlty, I'm using tools like perf, top, mpstat, iostat, ...
0
votes
0answers
20 views

Is it possible to save system memory by disabling FishEye System plugins?

I was wondering if it is safe to disable Atlassian FishEye system plugins I believe, that I don't need? It says this under plugin management: These plugins are integral parts of your FishEye ...
0
votes
0answers
51 views

HP Z-600 Workstation does not use all RAM or cores

I have an HP Z-600 Workstation running on Windows 7 Professional w/ a NVIDIA Quadro 4000 Graphics Card, 48 GB RAM and (2) 6-core processors for a total of 12 cores. When I perform a heavy operation ...
0
votes
0answers
519 views

Windows 8.1 double cpu usage and very slow

I have several computers of identical spec (1.9Ghz i5 scaled to 1.3, 8gb ram, 256gb ssd) running windows 8.1 (installed directly from an 8.1 cd, not upgraded) but since yesterday one has been very ...
0
votes
0answers
110 views

OCZ RevoDrive X2 runs at half speed

I have a OCZ RevoDrive X2 128GB in RAID 0 mode (two 55GB partitions) installed on my P55A-UD3 mainobard. I installed a fresh copy of Windows 7 64 bit and provided the OCZ drivers during install. When ...
0
votes
0answers
43 views

Will Linux select the fastest CPU in a SMP system

In a system with for example two physical CPU's, four cores per CPU. If one physical CPU is slower (lower clockspeed, other model) will the Linux process scheduler be smart enough to migrate a high ...
0
votes
0answers
81 views

Achieving very low network latency in Windows (<1ms)

I'm running windows server 2008 R2 on my server and I need to optimise my latency to a certain server, which is currently ~0.4ms (both servers are remote servers in the same datacenter). The server ...
0
votes
0answers
150 views

VMware Work station is very slow and it cause Windows to freeze

I am using VMware Work Station V9 to run Ubuntu (The latest version) and it is very very slow. I have given it 20 GB Disk Space / 4 GB RAM / but it still runs very slow. My current machine has 16 GB ...
0
votes
0answers
31 views

Poor wireless performance after WiFi printer intstall & uninstall

A few weeks back I installed a Canon WiFi printer, which caused all manner of issues with my laptop's COM ports (see - Cannot Delete Unwanted COM ports - Windows 7). Unfortunately by the time I ...
0
votes
0answers
19 views

Need an application that takes a few seconds to test some speed up techniques

there is this ARM9 SAM9G25 embedded device, which I like to improve its performance. I'm using Buildroot 2013.10 to generate the bootable Linux 2.6.39 images. There are some methods I'd like to apply ...
0
votes
0answers
39 views

Why does secondary hard drive IO slow down the entire system?

I have a two-drive setup: an SSD drive for Windows and apps (C:) and D: drive for code and databases. I noticed that while running an IO-intensive operation on the D drive (SSIS), the entire system ...
0
votes
0answers
227 views

Very slow loading gifs on Linux/Mac OS X

I've tried a lot of browsers on windows, linux and mac os x. Same gif-pages that loads pretty fast on windows loads very slow on Linux (like 30+ seconds for page with 5 gifs). For example - tumblr, ...
0
votes
0answers
192 views

UltraVNC super slow on Windows Server 2008 64 bit

I'm trying to use UltraVNC with Windows Server 2008, but the server is very slow (5 seconds lag, high cpu usage..). It has worked fine with everything else I've tried before, but this is first ...
0
votes
0answers
413 views

One particular instance of svchost.exe taking up awful lot of memory. Why?

I have been observing that the process "svchost.exe" in my list of running processes keeps taking an awful lot of memory; close to 550MB at times! There are multiple instances of svchost.exe running ...
0
votes
0answers
28 views

Computer slow reponse on a specific user account

I need help with my system. There are two user account in my computer right now. I have installed TEKLA software on my computer. My problem is when I will use User account 1 tekla response is fast but ...
0
votes
0answers
38 views

Why does my MBP perform poorly compared to an identical model with less RAM?

I recently discovered Geekbench and ran a set of tests to benchmark my laptop (Early 2011 Macbook Pro / 16 GB RAM of 1333 DD3 RAM / 2.3 GHZ quad core). Here are the results of the tests (Early 2011 ...
0
votes
0answers
153 views

Speeding up VM performance

I have a Mid-2012 MacBook Pro, that has an Intel Core i7-3651QM @ 2.30GHz, with 16GB 1600Mhz DDR3 memory and a SSD running VMWare Fusion for doing development work with. The VM runs almost as ...
0
votes
0answers
70 views

Arranging PCI-e cards to maximize performance in machine

I just put a new machine together using an ASUS Republic of Gamers Rampage 4 Extreme motherboard. The machine has 2 nVidia GTX 660s, an Adaptec SAS/SATA 6G controller and a Creative Sound Blaster Z ...
0
votes
0answers
457 views

Suddenly Hard disk performance deteriorated

Everything was fine till yesterday. From today morning I've been observing that videos (on my harddisk using kmplayer) aren't playing smoothly. I suspected that it might be the player problem, so ...
0
votes
0answers
20 views

Optimal config for VM host

I'm facing a big issue when I start my windows virtual machine. I noticed that there are a heavy disk usage, and in consequence the host desktop os is freezing and I'm not able to get back "commands". ...
0
votes
0answers
38 views

I moved houses (40 miles), kept same internet service, but much, much slower service

I recently moved about 40 miles to a new house. I kept the same service provider, same plan, and same modem/router. In my old house, the speed of the internet was a non-issue - click a page and you ...
0
votes
0answers
42 views

hundred-tab friendly Mozilla w/ no continuous javascript

I often have hundreds of tabs open in many windows in Mozilla, and, after a while, it starts consuming significant amount of CPU for these dormant pages, and each new window and page takes a very long ...
0
votes
0answers
86 views

Steam games lagging on Debian 7

I installed Steam on to my ThinkPad laptop which is running Debian 7. It has a Intel Core 2 Duo P8600 @ 2.40Ghz and 4GB RAM, along with an Intel Mobile 4 Series graphics card. It's my understanding ...
0
votes
0answers
428 views

Installed Windows 8.1, Explorer now taking > 50% CPU

I installed Windows 8.1 (x64 Enterprise) on a 5 1/2-yr old Dell Inspiron 1720 laptop. I'm seeing sporadic extended periods (a couple minutes up to 10-15 minutes) where Windows Explorer is consuming ...
0
votes
0answers
64 views

How to increase IO for operation “SELECT”?

I use windows server 2008r2 with role Hyper-V. The guest system is Ubuntu 12.04 LTC (64 bit). It is situated on the dynamic virtual hard disk /dev/sda. There is postgresql-9.1 (amd64) on the Ubuntu ...
0
votes
0answers
18 views

Full system analysis with UI

I recently started using NewRelic and now I'm wondering what other life-changing tools there are. In specific, I'm working in Linux, and I was looking at my RightScale monitoring and saw that there ...
0
votes
0answers
130 views

What is causing computer to lag? Older machine, SSD, Win7

I just upgraded an old Dell Vostro 1400 from XP to Win 7 64-bit, and it's running much slower than I anticipated. Can anyone help me with ideas why this would be the case? Here are the details: ...
0
votes
0answers
129 views

Frequent application not responding errors?

Recently I've begun to get a large number of application not responding errors, or very slow program load times. I'm running Windows 7 Pro x64. Frequently the issue will be with Windows explorer, ...
0
votes
0answers
109 views

Windows 7 Laptop loads slowly then freezes

This started happening earlier today. I booted up my laptop and it takes forever to load into Windows 7. I then booted it into Safe Mode, ran Malwarebytes and it found some malware that I got rid of ...
0
votes
0answers
49 views

Two SSDs,which are exactly same, but sequential write performance varied widely?

I bought two SSDs,which are exactly same, but sequential write performance varied widely? sdb is the first SSD, sdc is the second SSD, and partitions are same(both sd*1 and sd*2) and the sdb1's ...
0
votes
0answers
222 views

Google chrome slows down while opening a new webpage?

Whenever I hit CTRL + T new tab same when i hit Home tab and write any url for first 10-15 seconds it just doesn't show anything, hangs for any webpage including the fastest www.google.co.in? Can ...
0
votes
0answers
434 views

SSD disk on a new laptop very slow and speed fluctuates

I recently bought Asus S550CM VivoBook laptop. It includes 24GB SSD disk (used for cache) and 1TB sata HDD. It comes with Windows 8 preinstalled but since day 1 everything was not working fine. Since ...
0
votes
0answers
42 views

Should I install multiple network services on single VM?

I have a ESXi installed on Dell Poweredge T110 II. On this computer, I'm runing multiple VM. At the moment, there are multiple network services on multiple VMs. For example: I have DNS,VPN,Git on one, ...
0
votes
0answers
1k views

Acer One D270 10.1" Laptop very slow after Win 7 Ultimate upgrade

My laptop Acer One D270 is getting very slow (slow processing) after I upgrade from Win Starter to Win 7 Ultimate via Bios (as the win stater crash). I installed all the drivers Graphic driver is ...
0
votes
0answers
64 views

very weird: Connecting Android causes Client Service Runtime Process to severely slow down PC

This issue has been bothering me for a long while, very weird and couldn't solve it. When I connect my Nexus 4 Android to the PC, suddenly the Client Service Runtime Process cpu consumption jumps ...
0
votes
0answers
176 views

memcached issue on multi-core windows server with virtualization

i am having an issue running memcached (v1.4.4) on multiple cores. Here's my environment: Windows Server 2008 R2 SP1 running VMware, Intel Processor, only one core (out of eight) is enabled for the ...
0
votes
0answers
87 views

Slow data transfer speed to USB

I have awfully slow usb transfer rate something like 821kb/sec at maximum while transferring data (music) to micro sd card and most of the time it is very slow even on pen drives etc. My system specs ...
0
votes
0answers
172 views

Sudden drop in CPU - unclear root cause

Trying to diagnose why my computer suddenly comes to a CPU standstill (somehow related to plugging in the computer to power packs / recharging). One thing that has prevented me from diagnosing the ...
0
votes
0answers
131 views

slow down in SUSE linux enterprise server

I have run a mongodb process that uses most of the RAM (around 10 GB out of the total 11 GB). But immediately after I stop it, there is a huge slow down (even during the process but that is ...
0
votes
0answers
137 views

How Can I Speed up Virtualbox?

I have a client who has multiple machines accesing a database on a guest OS on Virtualbox (XP). They call me all the time to complain about how their apps on their systems freeze randomly when ...