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

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9 views

Procedure checklist for slow computer problems

For me one of the most hard to pinpoint the causes problem is to determine what is causing slow behavior. In many cases you can't find a process which is consuming more significant memory than the ...
0
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0answers
19 views

HTML5 web content really slow, somehow caused by ethernet driver

HTML5 content is really slow for me, browser independent. It seems that my ethernet driver crashed recently, causing HTML5 videos and other content to load slowly, get stuck etc. I updated the driver ...
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1answer
33 views

Why do smartphones have up to eight cores but many laptops still only have two? [on hold]

I have been looking at buying a new smartphone as well as a new laptop. What has struck me as odd is that many smartphones now have quad cores or even octa cores, yet many laptops still only use dual ...
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0answers
27 views

Intel RST drivers - magic performance boost (only) up till version 11.2.0?

what's the magic behind the massive write speed performance boost by intel RST drivers up till and including version 11.2.0? i have done some performance measurements of my application that is ...
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0answers
8 views

Pycharm on Linux: Scrolling has become suddenly very sluggish

I've a Linux machine with 4gb of RAM and 2 VCPUs on VirtualBox running on a Windows 7 host (Core i7 with 16 gigs of RAM). The Linux VM is my workspace for a project. I run Mobaxterm on my Windows ...
2
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1answer
17 views

How to best manage the run of several processes?

My computer has 6 cores. I have to run 12 processes. Each process takes exactly 10 minutes. I want to consider (for the sake of the argument only) two scenarios: I run 2 processes successively on ...
0
votes
2answers
68 views

Windows 7 running slowly despite having lots of CPU and memory free

This is my computer spec Intel i7 2500k @ 3.4ghz, Win7 64bit 16gb of ram Radeon HD 6800 My computer is starting to run progressively slower for example when switching between programs ie excel to ...
0
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0answers
13 views

What parameters should I consider when comparing two CPUs?

When comparing CPUs, it seems that basic parameters such as the number of cores or the clock rate are not enough. For instance, on a popular French e-commerce site, Intel Xeon E5-2620 v3 (2.4 GHz) ...
4
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2answers
31 views

Does an INTERNAL USB hub affect performance?

I searched a little bit on the subject, but I couldn't find any clear answers, so I'm asking this question: Will the performance of a USB hub connected directly to the motherboard be shared between ...
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0answers
19 views

Prevent KDE from swapping

I've realized that my laptop was overheating as a result of lots of I/O, so I searched for the programs who used swap, and I found the following: $ pgrep kwin 13387 $ pgrep plasma-desktop 13424 $ cat ...
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0answers
41 views

Would this registry change affect you or your users negatively?

Would this proposed registry change affect anyone's PC they take care of, or any software you are involved in creating or supporting? If I proceed, it's possible you would see this change on a PC you ...
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0answers
23 views

How much barring does the CPU, BUS and Motherboard have on a pfSense system?

I am planning on turning an old Pent 4 system into a pfSense box using (4)100Mbps ports and I have a 50/50 fiber connection currently for $25/mo and was wondering if I would by at any rate slow the ...
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2answers
95 views

Massive Computer Slowdown On Most Everything

I feel dumb asking this, being A+ certified and all that, but I'm not sure what to start at. So this problem has been getting progressively and progressively worse, and now it's to the point where ...
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0answers
18 views

Performance degradation migrating the OS on SSD to bigger SSD

I'm planning to buy a bigger SSD but soon a question came up to my mind: would my performance fall down after moving the OS on the bigger SSD (like it happens from HDD > SSD without clean install)? In ...
0
votes
1answer
92 views
+50

Windows 8.1 cached memory and memory optimizers

I can't find similar question so talking about it so I would like to create one. It is a bit long so I bold what I want to ask actually. Someone had noticed Windows 8 is taking too much memory for ...
0
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0answers
8 views

Performance issues after migrating to a new server with better hardware config

I need help optimizing a server. We are currently using a pc with below configuration as a server (current) for Sugarcrm. Processor: RAM: 16GB Hard disk: SATA 500GB 7200 rpm OS: Ubuntu 12.04 LTS ...
1
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1answer
28 views

Consistently high disk usage slowing down computer

I am getting extremely high disk usage on my computer when running my virtual machine which is causing the vm to slow to a crawl. The native OS is Windows 8.1. The vm is Ubuntu 14.04 64 bit running in ...
-1
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0answers
49 views

Why isn't Firefox quickly multitasking between non-selected tabs? [closed]

I have a powerful processor (i3-4160) and I should be able to have something complete uninterrupted/slowed down while I am doing something else on another tab, but the browser isn't doing this. I'm ...
3
votes
2answers
78 views

Which graphical settings impact CPU usage?

When running a game on a CPU-bottlenecked PC, which graphics settings should be decreased to improve performance? In other words, which settings usually have impact on CPU usage (rather than GPU)?
0
votes
1answer
53 views

What is the difference between CPU and Core temperatures? [duplicate]

While trying to figure out why the performance of my machine has suddenly severely degraded, I noticed that although CPU temperature is being reported as 45C while idle, the temperatures of all 6 ...
0
votes
1answer
24 views

Does ASRock XFast USB actually improve file transfer?

Since I bought my computer from a friend, I have been using the ASRock XFast USB software. It came with the ASRock motherboard (that is, it's not something that was found on the internet and installed ...
0
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0answers
15 views

How to Match Memory to FSB (pre IMC)

I have the following hardware: P35-DS3L supporting FSB 333/266/200 Mhz, quad-pumped. Four dual-channel slots. E2180 currently @ 2.00Ghz (200.00x10) I plan to raise the FSB to 266.66. This is my ...
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0answers
22 views

current crypto hash function benchmarks (specifically SHA-1) [closed]

I'm looking for up-to-date benchmarks for creating hashes. I'm looking especially for benchmarks targeting SHA-1. oclhashcat benchmarking states for SHA-1 on a PC with 2x AMD HD 6990, 880 MHz GPU ...
3
votes
2answers
48 views

Is there a performance difference when installing an OS on the last partition?

I have a laptop with Windows installed on a GPT hard drive. I want to have another partition to store data and yet another to install Linux Mint (or Ubuntu, still deciding). Should I install it on the ...
0
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0answers
13 views

DNS resolution takes too long

[Reposting here because it was deemed off-topic at Stackoverflow] This is regarding a home internet connection via a cable modem. All of a sudden Chrome takes ages to render a page. Whenever I type ...
2
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2answers
35 views

Why does my hard drive perform well in benchmarks but slow in applications?

My hard drive has been acting slow lately, taking several seconds to load an application. It's the Hitachi HTS723232L9SA62 (7200 RPM). I ran a benchmark and the speeds were in the 70 Megabytes/second ...
0
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0answers
39 views

Extremely slow USB transfer rate in ASUS Windows 8.1 USB 3.0

I have an ASUS N56JR. It has several USB 3.0 ports. I have 5TB back-up drive which I manually backup my files to. This slow transfer rate happened right after we had a power-outage during a ...
0
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0answers
3 views

Is HDFS concurrent reading less efficient than reading a replicated copy?

If I have two identical files A and B on HDFS, and then have two simultaneous read tasks on those files. Is scenario 1 faster? Scenario 1: read A + read B Scenario 2: read A + read A If the ...
0
votes
1answer
42 views

High disk usage after recovering from standby in Windows 7 when switching from one app to the others

I have a problem with my Windows 7 64bit (Sony VAIO Core i7, 6GB of RAM, 1TB HD with over 300GB of free space) that i hope someone can solve. I frequently use Visual Studio and other CPU/memory ...
6
votes
2answers
150 views

SSD upgrade underperforming

I upgraded my Windows 7 PC from a Samsung Spinpoint F4EG HD204UI HDD to a SanDisk Pulse SDSSDP-128G-G25 SSD but, unlike seemingly everyone else in the world, I have never noticed a performance ...
0
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0answers
43 views

Can't solve mysterious 20 seconds http delay

I read a few similar questions, but they seem to be always different somehow. The situation here is very puzzling: for a handful of websites, I get a roughly 20 seconds delay when requesting any page ...
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1answer
47 views

Is my computer fast enough to play league of legends? [closed]

Do you guys think that a Intel Celeron E1200 Dual-Core Processor, with 2 gigabytes of ram is fast enough to play league of legends, provided that the rest of the system is good enough.
1
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1answer
27 views

In short, I can't seem to download or install most things on my Win7 Lappy from Chrome…as well as the whole system just being slow

I have a Toshiba Satellite with Win7. At first I started noticing videos playing slower. At my boyfriends place it was less noticeable since the internet speed was cranked up pretty high and we lived ...
-3
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0answers
33 views

Rage hitting laptop and server running “weirdly” slow

Situation here is: I got an MSI laptop and have used it for 1 year. Recently it goes "weirdly" slow. It happenes when I do something on my laptop, such as duplicating a file, using a function in a ...
1
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0answers
35 views

Computer suddenly became slow?

I am using Fedora OS on my Desktop. Normally, I always leave my computer on and access with teamviewer remotely. Last week my computer was on for 7 days, and after I start using it I have discovered ...
4
votes
3answers
336 views

HDD on SATA I (1.5 Gbps)

I am planning to buy an SSD for my laptop, but my budget isn't high enough to afford something like a 1 TB SSD; the most I can get on my budget is 240 GB.  So I am planning to go for an SSD, which I ...
0
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2answers
43 views

Power cord blew, computer is now sporadically slow

So I have a substantial gaming/ graphic arts computer running Windows 7 Ultimate. A few weeks ago I was playing a game when my power cord blew. The computer instantly shut off and there was a hole in ...
0
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0answers
30 views

How can I tell if antivirus is causing performance issues for CPU intensive tasks on a machine?

My company publishes simulation software that regularly performs prolonged CPU (and GPU, and occasionally I/O) intensive tasks. Our userbase are engineers, of whom some are embedded in large ...
3
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0answers
110 views

Intel SSD DC P3600 1.2TB performance

I just got a workstation with an Intel SSD DC P3600 1.2TB on an Asus X99-E WS motherboard. I started Ubuntu 15.04 from a live CD and ran the Disks (gnome-disks) application to benchmark the SSD. The ...
0
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0answers
53 views

Why am I exceeding my VRAM limit in my games and not suffering from dramatic frame rate drops?

Just like my other question, this isn't by any means a problem I'm complaining about, this is just something I want to know the secret behind. System Specifications CPU: AMD A10-6790K 4.0 ...
-1
votes
2answers
36 views

CPU running slower than normal - and hotter

Some liquid got spilled on my PC. I cleaned it up but when trying to turn it on I noticed that there were some drops of water on the CPU (AMD). The PC wouldn't turn on - it would start up, but nothing ...
2
votes
1answer
181 views

CPU low performance

I've been using an Asus laptop for almost 3 years. During that time I never had any kind of issues, and every program used to run pretty smoothly. A few days ago, after patching some Windows updates, ...
9
votes
3answers
298 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
vote
2answers
58 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
191 views

firefox 38.0.1 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 ...
0
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0answers
19 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
votes
2answers
69 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
73 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
votes
1answer
62 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 ...
0
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1answer
24 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 ...