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

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18 views

Should you install GPU drivers on HDD or SSD?

I have always been wondering the following questions: Where should the GPU drivers be installed? HDD or SSD? How often are they read? Does it need to be fast? Is there any performance gain when they ...
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0answers
11 views

apache php7 is 100 times slower then static content

I am having slow TTFB (200-700ms) on my local web site (Vbox VM, debian8, apache 2.4, php7), so I made some bench marking, and narrowed it down to an Apache configuration. I have made 2 identical ...
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1answer
17 views

Macbook type A1181 sluggish after repair. What could have gone wrong?

I had to replace the CPU fan and the inverter cable of this macbook. I followed the guides at ifixit: Repair guides for MacBook Core 2 Duo After reassembly the screen and the fan worked properly but ...
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2answers
95 views

Windows 10 boot suddenly takes 10-20 minutes

I installed my brand new Lenovo 900s and after installing my standard software and development systems and suddenly the system wouldnt boot and is stuck in the boot screen. I first thought it was ...
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0answers
10 views

Google Chrome slightly jitters with one minute period

Some months ago I installed Windows 10 on my PC and now when watching Youtube videos in Chrome, I experience regular jitter - sound is fine, but video gets jittery for a few seconds with regularity ...
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0answers
24 views

Transferring large file to/from USB drive causes system to hang until transfer is done

I have a box running Ubuntu 16.04 server. It has an internal SATA hard drive with the OS on it, and an attached USB 3 hard drive which I use for storage of large/long term files. A lot of times, this ...
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1answer
24 views

CPU performance growth stagnates

I looked at this diagram and I am wondering me that the increasing of the CPU performance seems to stop although the transistor count is still increasing. I mean what are the profts of the increasing ...
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1answer
31 views

Deliberately slow down file access speed

I am trying to deliberately slow down access to files on my Windows machine to test load times on an application I am making. I've tried virtual machines and giving it limited CPU/RAM resources, but ...
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0answers
22 views

Matlab 2015b laggy with windows 10 update process running (GWX.exe)

For a couple of days Matlab2015b has been much slower than before. I tested 2013b and 2016a and both were significantly faster (my S-Function runs ~10 times faster). Since it was not like this before ...
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1answer
16 views

Nvidia GT 540M runs smoothly then performances drop

I'm using a 5 years old ASUS K53SV with Win 7 using a Nvidia GT540M GPU. Recently, especially when playing games, everything runs smoothly, but after a while, usually a few minutes, there's a half ...
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0answers
15 views

Omit windows from secondary display [on hold]

I want to decline this windows while I'm using hot key alt + tab. Is it possible with embedded functions? Or rather to use/write your own script
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0answers
49 views

SSD is very slow on PC

Yesterday I installed Samsung 850 EVO ssd in the place where HDD was installed on my HP Pavilion Dv6t 6c19tx. Then I installed fresh Windows 10 pro on it and everything went smooth. I didn't notice ...
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0answers
73 views

SSD is slower on PC

Yesterday I bought Samsung 850 Evo 250GB. It's now my boot drive and has Windows 10 pro installed on it. I benchmarked the SSD with Crystal Disk benchmark. All the scores reported by crystal disk ...
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1answer
31 views

Understanding cpu usage

I have this simple code int main() { while (1){} return 0; } When I run this code on Windows, why is my cpu usage only 25%? Yet, when I run it on Linux, my cpu usage is 100% I have 4 cores ...
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0answers
37 views

Is there any effect on performance when using the Cinnamon desktop environment in Ubuntu instead of Unity?

Cinnamon is a famous DE stick with Linux Mint. People say Linux Mint's performance is better than Ubuntu on under-powered system. I am using laptop Dell Vostro 2420 with Ubuntu 14.04 LTS installed, ...
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3answers
92 views

my windows 10 pc got really slow although CPU and memory usage is fine. what else can I do?

since two weeks my windows 10 pc got really slow, and I have no idea why. I can still do everything, but everything takes much longer to a degree that I'm struggling to get my school work done. ...
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0answers
19 views

throughput over LAN low with small files

A single threaded program reads files 3 KB each over 1 Gbps link LAN (using e.g. \\other_machine_ip\share\file_name.txt) from one windows machine to another. Calculating the speed using time, number ...
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1answer
34 views

Harddrive suddenly got really slow

My computer has multiple hard drives. The one I am asking about has my Steam games and backups of websites I built for work. Last night I noticed my Steam games got really slow and was frequently ...
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0answers
18 views

Computer sluggish while running speed test

Recently my computer has become very sluggish when running internet speed tests (the PC itself, not the internet speed). I've also noticed this when downloading stuff sometimes, I thought it may be ...
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1answer
76 views

Why Powershell is so slow?

I tried to make a simple thing with PowerShell, find files which take most space on the drive. I used ls + sort and....it took forever for me. Sometimes I use far manager and compared with ...
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1answer
67 views

My pc is very slow

my pc performance became very slow lately just doing basic tasks like browsing on the internet, watching 720p youtube videos, working with MS word or excel, for example it hangs for few secs when I'm ...
1
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1answer
37 views

High-specced machine can't fluently play 4K UHD video

I have a machine that should in principle be able to play 4K/UHD uncompressed video. Here are some specs (tell me if you need more): Operating System Windows 7 Professional 64-bit SP1 CPU ...
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1answer
44 views

Why do my videos on my PC play in 'slow motion'

I have an odd occurrence with my PC. When I try to play video files, whether it be online through YouTube or Facebook, or on my hard drive in Windows Media Player, they play in slow motion. However, ...
2
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1answer
68 views

My Windows 10 Computer Seems to Wake up And Run Slower

I've got a beefy Windows 10 desktop computer (specs below) that has a NVidia 970 card, two 4K monitors and bunch of bluetooth devices (k/b, mice, etc.). I've noticed that once it has gone to sleep ...
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1answer
29 views

Slow VNC. Where's the bottleneck?

I have two computers in a LAN, one for leisure and one for hobby. The latter I connect to via Remmina VNC. This is what the desktop of the hobby computer looks like. The speed of my mouse cursor ...
2
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1answer
75 views

Slow download speed on Windows 10

When I built my computer I only had a Windows 7 disk lying around, so I installed Windows 7; Internet worked completely fine and didn't have any issues with the download speed. I then downloaded ...
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1answer
28 views

Music performance setup - with HDD + SSD + more SSDs?

Question: I'm aware that the OS runs much faster on an SSD than on a HDD. I'm still confused though. I want to do live DJing with my computer. Essentially l need to simultaneously do 3 things very ...
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1answer
15 views

Performance impact of SATA II over SATA III for ZFS?

I have a bunch of WD RE4 disks I got from a place that I worked. The drives are 3Gbps SATA II interface. I was going to use them in a server I am building for myself to act as a NAS / SAN for my ...
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1answer
39 views

How to detect thrashing on an SSD-equipped system?

With spinning hard disks it was relatively common to hear disk thrashing when some process, Windows or otherwise, was making a bad fist of things. Quite often this was an indicator that a process was ...
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0answers
37 views

Does Synology Hybrid RAID (SHR) have faster read/write speeds than a single HDD?

So I have 4 of the same drive (5400 RPM WD Red's) in SHR. Since there is data parity (same chunks of data exist on multiple drives), will the read speed be greater than that of a single drive? Could ...
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1answer
102 views

Disabling pagefile in windows 10

I read a lot about disabling pagefile pretty much everywhere and some places tell you that doing so is a great thing for performance (given a lot of ram) and other places tell you that even with a ...
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1answer
52 views

Is it possible to create virtual disk out of CPU cache?

I heard a story from 1 bro, that some other bro installed small OS on CPU cache and it worked very fast. Intel® Xeon® Processor E7-8870 v3 has model with 45MB cache. Are there some technologies that ...
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0answers
31 views

Slow network speed until restart of PC

I have a strange problem that I cannot figure out. After a day or or two my network slows right down from 64Mbps to around 3Mbps, restarting the router only gives it a boost up to around 5Mbps but ...
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0answers
56 views

Synology DS115J NAS Slow Speed from NAS TO PC

Has stated in the title I have a DS115J Synology NAS. Copying files from PC to NAS I get 11MB/s (wich is pretty much the max on network of 100mbps if I'm correct). But when I copy files from the NAS ...
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1answer
44 views

GPU Performance levels - unexpected drops

In Speccy I see 4 performance levels of my GPU. Which component is responsible for choosing performance level? Because when I play a game (Heroes of the Storm, Rocket League, NFS 2015) this ...
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3answers
58 views

Is my laptop fast enough to run WIndows 10? [closed]

I'm thinking about updating from Windows 8.1 to Windows 10. Before I do that, I would like to know if my laptop will run as fast as it does with Windows 8? Here my specs: Model: Lenovo S210 Touch ...
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2answers
27 views

How to speed up process start time?

I noticed processes are taking a very long time to start (100ms). My CPUs are mostly idle but has load on it. top - 16:59:29 up 60 days, 23:49, 1 user, load average: 6.38, 6.28, 5.95 Tasks: 544 ...
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1answer
47 views

Can I run xbootmgr to speed up boot times on an SSD?

It is possible to tune up the Windows boot time by using the xbootmgr tool from the Windows Performance Toolkit, as described in this related question of myself: Should I logon to Windows when using ...
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1answer
41 views

Should I logon to Windows when using xbootmgr to speed up boot times?

The below is an (adapted) quotation from Raymond.cc (Fair Use in according to their Terms of Use): The Windows Performance Toolkit also has a command to analyze the Windows boot process and make ...
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1answer
25 views

UnRAID performance vs. bare metal performance - any tests out there?

I couldn't find any, so perhaps anybody has done some tests? Assume that both hosts are turned on, but one of them is an idle system. One would be Linux and another Windows.
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0answers
36 views

Clonezilla disk to image speed decreasing over time

I am actually backing my whole 2tb disk using Clonezilla disk-to-image option. I don't use any encryption or anything that I know that could slow down the process, and yet, Clonezilla tells me that ...
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0answers
24 views

Windows 7 running slowly despite having lots 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 i.e. Excel ...
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1answer
60 views

Turn off HyperThreading without BIOS

I need to turn off HyperThreading from my i5-3210 notebook since it hinders my IDE performance. My i3 took about 10+ seconds from compile to run in my Android VM, same code runs in my AMD in about 10 ...
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0answers
24 views

Laptop boots up very slowly

I've currently reinstalled Windows 7 on my old Acer Laptop. Everything is working fine but whenever i start the Internet Explorer my Laptop slows down heavily. The next boot up then takes about 20 ...
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0answers
7 views

Windows 8.1 Slow shutdown [duplicate]

I have Kingston V300 SSD, Hibernate and Fast boot off. It takes 5 mins to shutdown but it happens every 2-3 days, it's becoming more frequent now. I desparately need help. When I only had HDD it was ...
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0answers
22 views

What software can write to Cache memory?

I was working through a Higher Computing past paper and the following question came up Describe a situation where the cache memory would not improve the processor’s performance (1 mark) The ...
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1answer
28 views

Force Chromium browser to use multiple processes

Several people complained here about multiple Chromium browser processes, I seem to have opposite problem. I want (if I did not misunderstood something) to force Chromium to use separate process for ...
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1answer
74 views

How I tell Windows 7/8/10 to be less aggressive in making copies of RAM to pagefile?

Many people ask how to disable pagefile, because they feel the effects of the issue I will ask about. Instead I want to fix the issue, without disabling pagefile. Windows has the capability of ...
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1answer
32 views

Find Causes for slow Performance on Windows

I have a situtation where a Eclipse Workspace (identical) performs very differently on two very similar PCs. Both are approx 3-year old PCS, one i7-3520M, the other i5 (I do not have the exact model, ...
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1answer
31 views

Is RAM speed relevant for copy tasks in Excel?

I am often working with Excel and notice that when I copy and paste large amounts of data from one spreadsheet to the other (especially after the data is filtered), this operation is executed very ...