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

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-2
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0answers
18 views

Are there any good software performance benchmarks available? [on hold]

Background: I'm building a computer and trying to choose the components as carefully as possible. There are very many high quality benchmark websites that show a wide range of hardware performance, ...
0
votes
1answer
23 views

Bench-marking my SSD gives unreasonable number

I have a SAMSUNG 840 EVO SSD (120GB) installed on my laptop. According to the SAMSUNG website, it has 520 MB/s max read and 500 MB/s max write (sequential). I am trying to benchmark it using ...
0
votes
1answer
33 views

What is my CPU speed?

I need the CPU speed of my KVM host. When I am using dmidecode, the result is the following : sudo dmidecode | egrep "Max Speed|Current Speed" Max Speed: 3100 MHz Current Speed: 3100 ...
0
votes
1answer
19 views

Why is my mouse lagging over Thunderbird email or folder pane?

In Thunderbird 31.5.0 I noticed an annoying mouse delay/stutter when mousing over the email list or folder pane. At the same time I see a CPU spike of about 25% (older WinXP dual core system). Why ...
-1
votes
0answers
24 views

Nvidia CUDA performance over PCI-E x1 only

For my mobile computer vision project I want to use NVIDIA CUDA with the lowest power possible. I can go with a 300 GFLOPS GeForce GT 720 which has a TDP of 20W. I want to use it in an embedded ...
0
votes
0answers
17 views

Does minimizing programs in Windows affect their performance? [duplicate]

I feel like when i minimize some programs like download manager, torrent client or other programs that are in progress, their performance decreases in comparison to programs that are shown on monitor. ...
-1
votes
0answers
14 views

My computer is slow now after pulling out my video card to look at what the graphics card is

So I was checking out my graphics card I pulled it out to check the name since it was on the bottom side of the card then I placed it back in correctly and now my games that I use to play are having ...
0
votes
0answers
18 views

have over 8GB free disk and “disk full” message appears

my macbook pro System Version: 10.9.5 Processor: 2.9 GHz Intel Core i7 Hard Disk: 250 GB Memory: 8 GB Number of Processors: 1 Total Number of Cores: 2 L2 Cache (per Core): 256 KB L3 Cache: ...
0
votes
0answers
66 views

How much extra workload would I assign the GPU if I choose to duplicate the screen instead of a single monitor?

As per my very little knowledge about computer graphics, I think the effect would be minimal. The reason is, given that the two screens has the same resolution, the pixel calculations are done exactly ...
0
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0answers
20 views

Intel turbo boost falls back to default 2.4GHz just when it's needed most. How can this be resolved?

Intel Turbo Boost has my laptop running at 3300 MHz most of the time. My power settings are maxed out, so it stays there most of the time while I'm browsing the Internet and stuff, but once I run a ...
-2
votes
0answers
39 views

RAM and CPU relationship [on hold]

What is the relationship between the amount of RAM added to a system and the CPU power? Can there be a situation where there is too much RAM which overloads the CPU. How does it all work? For ...
0
votes
0answers
20 views

Check website speed using Firebug

I was using the “Net” panel of Firebug to check my website speed. I have a timer on the server script and it only takes around 0.02 seconds, but dang is it slow to render the page (6 seconds). Then I ...
0
votes
1answer
16 views

How to fix clock multiplier, it is 8x with 100 MHz Bus speed?

May laptop (HP G7) which is a low end laptop but can can overloaded even multiple tabs. I have seen it loading very slow if I search images on google search. I recently installed CPU-Z and found that ...
0
votes
1answer
30 views

Memory not performing as expected

This is probably a noob question but I really don't know why this is happening I bought the below parts recently ASRock 970 Pro3 R2.0 Motherboard HyperX Savage 8GB (1 x 8GB) Memory Module 2133MHz ...
-1
votes
2answers
23 views

What is CPU bottlenecks and how does it affect me?

First some facts: I have an MSI GT70 gaming laptop equipped with a GeForce GTX 780M 4GB graphics card. I am considering upgrading to an MSI GT72 equipped with a GTX 980M 8GB graphics card. I play all ...
0
votes
0answers
62 views

Sometimes slow/choppy performance, driver related I believe (Newly formatted machine)

EDIT: Since we have identified that at least my HDD is failing, I've went ahead and used this as an excuse to finally get an SSD. It will arrive tomorrow morning and I will format back to my current ...
1
vote
0answers
34 views

How to defragment or minimize a “directory file” on ext4?

I have quite an old home directory on HDD. There were lots of files created and removed and now the size of /home/username is 995328 bytes. Please note, I mean the size of the "directory file" (every ...
0
votes
1answer
28 views

Performance comparison for older server [closed]

Given the falling price of older decommissioned server hardware, I am considering purchasing one to use for my research at home. I will be running Linux, PostgreSQL, Neo4j and R-Server on it. I ...
-1
votes
1answer
38 views

What happens if I upgrade 2X2 GB RAM in my laptop to 2X4 GB?

My Laptop has following specs :- 2X2 GB RAM (2.99 GB usable) Intel core i5 @2.4 GHz quad core processor (2nd generation...maybe ) 1 GB Graphics card (utilizing memory from RAM) EDIT : 1) Also ...
0
votes
0answers
15 views

Subversion gets stuck when performing a network based operation after not communicating with the server

Our company uses Subversion, and ever since we upgraded to version 1.8 we encounter performance problems in network-based operations such as checkout, update, diff and log. The problem occurs ...
2
votes
0answers
27 views

Is it better to have 2x2GB Dual-Channel vs 4GB Single-channel RAM, performance-wise? [duplicate]

I know this has been discussed many times before but so far I’ve only found speculations and some blurry “experiences“ on this… Many just mix single and dual channel memory, or don't care about ...
0
votes
1answer
29 views

Distorted audio, lagging mouse, slow speed, no internet

So when I turn on my computer now the windows booting sound is all distorted almost like it's stretched or crackling, when I log in the mouse lags, and everything seems to load a bit longer. It can ...
-1
votes
0answers
32 views

Poor MSSQL server performance on virtual machine after system upgrade

I'm managing middle sized company database. Recently we have massive system upgrade and switched to virtual machine environment. After deployment, we are having performance issues, Apparently MS SQL ...
0
votes
1answer
13 views

Debian server is very slow in spite of low CPU, RAM na SWP usage

From 3 days I experience problems with my debian server. When I stream media with samba transfer is about 20kb/s when it used to about 6 mb/s. Its my home server so its not internet issue. When I ssh ...
0
votes
0answers
38 views

How to fix slow Windows 7 on almost-full hard drive partition?

I'm using Windows 7 64-bit and Ubuntu 12 as multi-boot on an HP Pavilion DV4 2101tu. My hard disk partitions are almost filled. (It shows with red color in Windows.) Sometimes the whole system is ...
0
votes
1answer
42 views

serious disk performance problems, please help,

I have a Dell inspiron 7720 processor intelr core tm i7 3630qm 8 gm ram the problem is that me disk is always between 49% - 50%, then I noticed my disk had some "partitions" named as disk 0c: and ...
0
votes
0answers
39 views

Process Hacker - What's the difference between Disk and I/O?

As a sysadmin often having to deal with Windows systems with issues- be it servers with performance issues, or desktops with malware- I often spend a lot of time staring at he two different graphs in ...
0
votes
0answers
28 views

How do I make HDParm or equivalent settings persist in Windows?

I have a laptop with a harddrive that spins down so aggressively (after ~10s of inactivity) that it causes performance problems in games and various other apps that have frequent but spread out drive ...
0
votes
1answer
24 views

Combining two graphics cards - performance

I want to buy a new notebook, and to be honest I want it to run all modern games with as high details as possible. Recently I came across a notebook that had in its graphics card section written: ...
0
votes
0answers
11 views

Android Low Memory: How to do factory reset of my phone when it won't open anything [migrated]

My Android phone is constantly giving me a "Low Memory" error on the top of the screen. I would like to uninstall intensive apps or even do a factory reset (following online tutorials), but even if I ...
0
votes
1answer
18 views

OSX performance of near-full drive

OSX performance degrades terribly when writing to an HFS+ partition which is over about 96% full. It seems that every write request triggers some sort of process which takes about 10 seconds, during ...
0
votes
1answer
29 views

Printer “Windows Update” - Why always so slow?

In every version of Windows I've tested, when you click the "Update Windows" button, before adding a printer, it is always so slow to complete updating. Even if you have top-notch hardware and a super ...
0
votes
0answers
28 views

Poor memory performance on intel avoton? [migrated]

I have 12 of these supermicro A1SA2-2750F boards that I'm playing around with in order to compare them to Dell's C5220s but I'm seeing consistent poor memory performance. Just curious if anyone's ...
5
votes
1answer
76 views

My SSD has extremely slow write speed. Any ideas what could be the issue?

Last year I put together a new PC with a PNY XLR8 SSD (http://www.pny.com/XLR8_SSD?sku=SSD9SC240GMDA-RB) Things have been great up until recently when I started noticing that network copies of large ...
0
votes
0answers
12 views

Wordpress extremely slow in VPS

Recently a client buy a "unmanaged" VPS at 1&1 and since a few days the site running on it, which is a Wordpress, is extremely slow and I can't find what the cause is meaning if it's at software ...
0
votes
1answer
35 views

Win7 System Process (PID 4) constantly accessing drive

My hard disk drive is constantly, incessantly active so long as my computer is on. Mostly this doesn't seem to affect performance- startup only takes a minute or two before the computer is usable- but ...
1
vote
2answers
38 views

What factors determine the maximum amount of ram a device can address?

I recently bought a new ultrabook that came with 4GB of ram. I have seen people talk about how it can be upgraded to 8GB with no trouble. However when I look up the CPU that is inside of the machine ...
0
votes
2answers
43 views

Does larger disk allocation unit size in HDD makes file searching faster?

Does choosing a larger unit size make it perform faster when it comes to searching files in the disk drive or even writing/reading files? Larger allocation unit means the hard disk needle needs less ...
1
vote
1answer
73 views

High CPU core usage from System Interrupts [duplicate]

The CPU usage on my AMD Phenom II X4 820 hasn't gone below 25% in days, and I realized that it’s because my 4th core is constantly at 100% load. I have spent quite a while trying to figure out why, ...
2
votes
1answer
60 views

Bad msbuild performance on Surface Pro 3

I've recently bought a Surface Pro 3 (Win 8.1, Core i7, 256GB Samsung SSD), mainly for .NET development and am disappointed at the performance. As an example, performing a full rebuild of a ...
1
vote
2answers
25 views

FTPS performance with small XML files but very high volume

Our company is building a b2b integration with another party that requires them to deliver to us a large number ~100,000 XML files about 10-15 KB each over the course of a three hour window everyday. ...
1
vote
2answers
98 views

windows 7 becomes unberable slow, what could I do? [duplicate]

I'm using windows 7 professional edition, 32 bits. At the beginning it's quite OK, but not it becomes unbearably slow: it takes around 31 minutes to start up! After I typed in the windows id and ...
3
votes
2answers
40 views

Thunderbird email from specific user is causing performance issues

In our office we are using Thunderbird. One user in particular, when using Thunderbird, has issues with sending and receiving emails. Whenever he sends an email, it takes 3 times as long to connect ...
0
votes
0answers
12 views

Are there benchmarks that measure code execution with various CPUs? Nodejs server building [migrated]

I have experience building PCs with gaming in mind. But where do I start when it comes to building a server (running specifically NodeJS programs)? I know the most significant factor would be the ...
-2
votes
0answers
81 views

Internet speed is very slow with new PC

I bought new PC and I have problem now. My internet is very slow and keeps changing it's speed. In old computer the speed was around 200 kb/s, now it's around few kb/s. My internet is slow everywhere ...
0
votes
0answers
25 views

Dropbox download speeds are terrible

OS: OSX 10.10.2 Router: Cisco RV320, updated AP: Ubiquiti Unifi AP-PRO Swiches: HP Procurve managed I have gigabit internet, both up and down, and my speeds generally do not dip below 800mbit. The ...
0
votes
0answers
22 views

OS on SSD, Win 8 “libraries” on HDD, access optimisations/cache?

I have Windows 8 with OS/Programs on my SSD, A lot of data on my HDD ... Available space for some data on my SSD (My SSD being 250GB, I can reasonably afford 100GB for data) Now I would like to ...
0
votes
1answer
64 views

Virtualbox - Windows 7 x64 slow loading

after moving *.vdi files to my new notebook I noticed that it takes long time to boot WIndows 7 x64(on 2 different VM's) on Windows 8.1 x64. That VM's worked perfectly on my home PC on Windows 7 X64 ...
0
votes
1answer
28 views

Clock speed vs. number of cores for parallelized computer simulation [duplicate]

My question is similar to some "speed vs. cores"-questions that have already been asked on this website. However, I am interested in some very specific and technical points. So I hope that my question ...
1
vote
3answers
866 views

Why is the Core i5 5300u rated better than the i7 5600u?

I just purchased a new x1 Carbon with all the bells and whistles. I got a Core i7-5600u which I really thought would be the better chipset to get. But now I'm looking at some benchmarks and the ...