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

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12 views

Is it possible to process millions of datagrams per second with Windows?

I am investigating if I can implement an HPC app on Windows that receives small UDP multicast datagrams (mostly 100-400 Bytes) at a high rate, using a dozen or up to maybe 200 multicast groups (i.e. ...
1
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2answers
50 views

Loss of space on a 16 Gb flash after format

So, I have a friend who has a flash drive that was playing music on a dvd player. Everything was great then all of a sudden it just stopped. First, I tried to do some data recovery on it but the ...
0
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1answer
57 views

firefox 38 runs slow in virtualbox guest windows

I am making a new windows virtualbox image today, and just installed firefox from https://www.mozilla.org I have used firefox for years, and it has always being very fast and as responsive as my cell ...
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0answers
15 views

Win7 Plug&Play-Daemon slows down Internet browser

I currently have a strange problem on a windows 7 system at work. Browsing the web with Firefox or Chrome is awefully slow. Even the browsers themself are slow. e.g. highlighting a button with a ...
3
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2answers
18 views

Intel RS3UC080(LSI3008) + Samsung Evo 840 = slow writing performance?

I am getting pretty slow writing performance in comparison with my Z87 board. Does anybody know if these results are to be expected out of the Intel RS3UC080 or what the problem might be if there is ...
0
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1answer
62 views

Does the amount of files on desktop affect computer performance?

I store thousands of files directly on the desktop folder. When I tell that to some people, they begin to yell "you're making the computer slower!" without any rigorous arguments whatsoever, just ...
0
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1answer
36 views

NetDMA (and Direct Cache Access?) have been removed from Windows 8 / Server 2012. Why?

The MSDN page on Direct Cache Access (DCA), which is part of NetDMA, states The NetDMA interface is not supported in Windows 8 and later. So I guess both NetDMA and DCA are gone. As both seemed ...
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0answers
42 views

Why are high-end laptops and desktops so close in benchmark performance nowadays? [closed]

When comparing Geekbench results for the top-of-the-line MacBook Pro with e.g. an Intel i7-4790 system, then the scores are not that different, even though the desktop sports 3.6 GHz whereas the ...
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0answers
49 views

Why is my Windows 8.1 (new laptop) extremely slow and sluggish when compared with Linux

I recently got this laptop, so it is still new and so is the installation. The laptop is TOSHIBA SATELLITE C55D-A-149. I realise that this is a budget laptop and the processor is fairly weak. I dont ...
0
votes
1answer
20 views

Installing EFI boot on 128GB memory card

I am using laptop having 5200rpm hdd, and I stuck with its speed, so I was thinking to purchase a ssd which can improve performance but hdd are so expensive, and I can't keep both hdd in my laptop. So ...
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3answers
48 views

How to prevent GPO from mapping network drives on my PC?

I'm using a Windows 8.1 laptop I got from my workplace and it's a member of the workplace domain. The IT department at my workplace thinks it's a good idea to enforce mapped network drives for all ...
3
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0answers
63 views

Stutter while gaming every 3-4 seconds in Windows using MacBook Pro 2012 (MacBook 9.1) using Windows 7

I'm using Windows with Bootcamp on my Mid-2012 MacBook Pro (Here is the config). Recently when I play a game, I get frequent (and somewhat constant) stutter every 2-3 seconds, no matter if it's a 2D ...
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0answers
7 views

fio: can't generate filenames based on jobnames

I am trying to benchmark performance using fio. Unfortunately I have some issues with fio (2.2.8 from git) and the interpretation of the manual. The manual reads (line 142, HOWTO): If no filename ...
1
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1answer
20 views

curl capturing http status and timing the request

I have a loop in wich I check urls from file one-by-one and want to get the status header and the execution time of every request as result. I have two curl commands: This one outputs the header ...
17
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4answers
987 views

Why is my Windows unbearably slow? [duplicate]

I use Windows since ever, sometimes Linux, sometimes OSX. Since Windows ME/2000 I have been having this major problem: I install a fresh copy of Windows, it boots fast as hell, everything goes ...
0
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3answers
61 views

Why is my computer so slow s:

I've had this problem for so long and it's annoying me. Everyone says my computer is bad but I dont get it. on Runescape I get 4 FPS. On LoL my computer just crashes and Skyrim is insanely laggy and ...
2
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0answers
34 views

Wrong total ram ( 8 GB installed, 4 appears and used in total )

I have this motherboard: GA-X38-DQ6 which can hold up to 8 GB of Ram. When I got this computer it had 4 memory sticks, 1 GB each, and everything was fine. Now, I have two sticks, 4 GB memory each: ...
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0answers
66 views

Bad performance after re-install windows

Lately my laptop was having trouble playing certain games because the disk would go to 100%, after trying multiple things to fix it without succes I decided to start from scratch and reinstall ...
1
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0answers
37 views

QCA9565 / AR9565 Slow at some distance

I'm having trouble with an Dell Inspiron 14 5447 Wifi using Ubuntu 14.04. It's an QCA9565 / AR9565 Wireless Network Adapter. When I'm at 4 meters distance of my wireless router, it works fine, as ...
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0answers
19 views

Does putting virtual machines in separate partition affect performance?

I have a 500 GB HDD in a laptop. I partitioned it into two drives so I could leave the C drive for windows and the other drive E for virtual machines. I run CrystalDisk benchmark on the C drive and ...
0
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0answers
86 views

Facebook load times are very slow, but other pages are fast, and >12Mbit/s up & down

I have measured 12 Mbit/s up and downstream. I have a wireless Network Adapter called Asus PCE-N53 (300Mbps 11n Dual band Wireless LAN PCI-E Card) and is connected to my local wireless router. I have ...
0
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0answers
58 views

Fast Wi-Fi speed on smartphone but slow on notebook

I have a Lenovo G710 notebook and a Samsung Galaxy Note 3 smartphone connecting to a Linksys E1200 AP. The Wi-Fi speed on my G710 is extremely slow compared to the Note 3, and half of a month on, ...
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0answers
55 views

Set Windows 7 to “Performance optimized” under Visual Effects with Batch script

I have this .bat script to start a specific game: @echo off if not "%~1"=="p" start /min cmd.exe /c %0 p&exit start "" "GTAVLauncher.exe" timeout /t 60 /nobreak >nul taskkill /f /im ...
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0answers
31 views

Windows 7 UAC and system performance drop

Can anyone confirm the performance drop when using computer? I'm getting tired of constantly battling all kinds of malware and "issues" Windows can have when using as normal, so I switched on UAC and ...
1
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2answers
27 views

Are there any security or performance implications of changing the user-agent in a browser?

I am working on a production issue which only occurs in IE10 and not in chrome/Firefox. If I change the IE10's user-agent (F12) to Mozilla Firefox it works. I need to debug the app. layer to find ...
0
votes
1answer
17 views

Why does maps.yandex.com load sooo slowly?

Considering that maps.yandex.com is the Russian equivalent of Google Maps (and hence, presumably, very popular), why does the website perform so extremely poorly? I'm viewing the website from the UK ...
0
votes
1answer
24 views

Slow download speed from own web server WAMP

I set up an easy WAMP server where I have some video files in the www folder. Now, when I download I only get 6-12 MB/s in Opera or Google Chrome. I've done speedtests and I have around 800 MB/s ...
1
vote
1answer
24 views

How can I audit performance while screen is asleep to troubleshoot audio issues?

I am having issues with my audio being choppy when my laptop's screen goes to sleep. Specifically, I want a log of the following: Applications' resource usage Any resource spikes Any ...
-1
votes
1answer
75 views

Does a faster processor noticeably increase speed in web page serve and load from localhost? [duplicate]

I am a web developer getting a new computer. Right now I am deciding between two laptops - one that has 32gb ram but a slower processor, and one with 16gb ram (can't be upgraded further) but a faster ...
1
vote
4answers
76 views

Machine too slow

My PC (a Lenovo Laptop) is used for software-development, website-dev, graphics work etc., so there is quite a bit of stuff installed and running. Yesterday I tried to import a MySQL-Dump (100 MB) ...
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0answers
44 views

Hard Drive R/W Speeds are Limited to about 3Mb/s

My mom's Acer laptop is super slow. However, when I open the task manager, the limiting factor of its performance seems to be the hard drive, which is usually maxed out at 100%, though only operating ...
1
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0answers
55 views

How to diagnose slow (only for awhile after start) Windows 7 machine?

I've got a Lenovo Ideapad, with a dual core Atom processor and Windows 7 that exhibits some odd behaviour. It's insanely slow right after boot. The disk drive will be lit up solid and grinding away ...
1
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0answers
144 views

svchost.exe (LocalServiceNetworkRestricted) uses excessive RAM on startup

I'm running Windows 8.1 on a Lenovo Ideapad Yoga 13 with a Core i5 CPU and 4 GB of RAM that I bought July of 2014. Though I have had a good experience, there's one problem, as you can see from the ...
0
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1answer
32 views

Gaming write-to-disk amount

I'm wondering (and I can't seem to find any relevant information) how much does gaming specifically use in disk writing? I know "gaming" is quite generic, but I'm comparing this to classic desktop ...
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votes
3answers
55 views

Will I perceive speed improvement with more ram?

I have a Toshiba Satellite L855-S5240. The current specs are, Intel® Core™ i5-2450M Processor2.5 GHz, (3.1 GHz with Turbo Boost Technology 2.0), 3MB L3 Cache Mobile Intel® HM76 Express ...
0
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0answers
53 views

How can I improve the performance of my computer?

I have had my computer for a long time now and even though I try to keep things clean, it seems relatively slow. Particularly, the windowing system seems to lag frequently. Windows fade in slowly ...
0
votes
1answer
46 views

Black screen after resume from hibernate

Here's my config: Windows 7 Ultimate (64-bit) i5 + 8GB (1600MHz) Samsung 850 Pro (256GB) My disk is giving me around 540MB/sec read speed, so I get a resume time of about 15-17 seconds which is ...
0
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2answers
69 views

Does disk partitioning impact performance? [duplicate]

I will soon buy a 4 TB HDD and I am wondering if I should split it since it has so much space. My question is: will doing this affect my computer's performance? If I would keep everything in one disk, ...
0
votes
1answer
77 views

Arch Linux extremelly slow and laggy

I was looking for an distribution that has Android Studio built in and came across 'BBQLinux'. The Android Studio works, but it's extremelly slow, to the point where it's unusable. I downloaded the ...
2
votes
3answers
47 views

What does the minimum spec mean in regards to CPU clock speed

Most software provide a minimum and/or recommended spec of hardware in order to the software. Within this list, we're usually informed of a clock speed for the CPU. For example, Visual Studio has, as ...
0
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0answers
19 views

Speed with multi-cpu motherboard

I'm looking at building a dual-cpu system, but I was wondering if there were any concerns with bottlenecks that I should be aware of since data is going to two different places now. I know that each ...
3
votes
1answer
126 views

Evaluate memory throughput

I use memtest86+ since years to evaluate memory throughput, allowing me to be sure everything is ok before putting a server in action. With one motherboard I can't have this information: The ...
-1
votes
1answer
47 views

Compare the performance and reliability of two hard disk drives

I currently have two basic hard disk drives from brands I don’t even recall. I just bought a new SSD to be the replacement of one of the two current ones. The two hard disk drives I currently ...
0
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0answers
21 views

Gateway NV5398U hard drive very slow to respond after upgrade from Windows 7 to Windows 8.1

This old but fully functional notebook PC worked as expected with Windows 7, just as fast (or slow, rather) as it was when new. After installing Windows 8.1, the graphics drivers were manually ...
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0answers
62 views

Samsung 830 256GB SSD dying?

I have a decent fast Computer (i7, 32 GB RAM, SSD, ...), which worked flawlessly for a year now, but about over a week ago the access rates just went bananas (well, very slow like on HDDs). Just some ...
0
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3answers
285 views

Why is my Acer Aspire E15 running slower when plugged in than on battery?

I am working on an Acer Aspire E15 (ES1-511-C590) running Windows 8.1 X64 with all the latest patches. It is running significantly slower while plugged in than when running off battery. Yes, this is ...
0
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0answers
37 views

Use two different connections: one exclusively for download and the other for upload: possible? [duplicate]

I hope you can help me with this dilemma. I have two different connections, one is via router/ethernet, the other one is mobile: the first one has a very good download speed, but lacks of upload ...
0
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3answers
75 views

What factors other than clock speed influence the performance of a CPU? [duplicate]

Having seen various people test powerful emulators on their computers, I have come to surprise hearing about how one CPU can have triple the clock speed but still have worse single-threaded ...
27
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8answers
3k views

Can a massive MySQL data import on an SSD damage it?

I have to import quite a lot of data (~100 million rows, ~100 times) into a MySQL database. Currently, it is stored on my hard disk drive, and the bottleneck of my import seems to be the hard disk ...
0
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4answers
97 views

Random spikes to 100% CPU lasting several minutes, (intervals, duration, processes) W7 PRO Dell E6400

For the last month or so I'm plagued with often, yet unexplainable spikes to 100% CPU load. Usually then Task Manager shows one or two processes taking 50%+ of CPU (not always the same: svchost, ...