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

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2answers
17 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 ...
0
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0answers
12 views

Algorithms implemented in Java to measure multi-core CPU performance [on hold]

I've been using Linpack and SciMark2.0 algorithms to evaluate CPU performance. I found those here: http://www.netlib.org/benchmark/linpackjava/ and here: http://math.nist.gov/scimark2/ They work ...
0
votes
1answer
25 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 ...
0
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1answer
19 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 ...
0
votes
1answer
13 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.
3
votes
0answers
17 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 ...
0
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0answers
23 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 ...
-1
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0answers
72 views

Windows 10 slow since latest big update

ever since the latest big Win 10 update (about a week ago 2016 april) the boot up has become a few seconds longer. The tray also comes up a few seconds later after clicking on it, furthermore if a ...
0
votes
1answer
37 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 ...
0
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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 ...
0
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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 ...
0
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0answers
21 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 ...
1
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1answer
17 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 ...
0
votes
1answer
46 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 ...
0
votes
1answer
29 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, ...
0
votes
1answer
27 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 ...
0
votes
0answers
24 views

RAM writes faster than it reads

I've recently created a RAM-Disk on my MBP17" and tried to check the read/write speeds and everything seemed fine. So i did the same test on my MacPro3,1 and i noticed that my RAM (16GB) writes with ...
0
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0answers
8 views

Intel Management Engine or Collaborative Processor Performance Control throttling

This is a laptop. Before I installed Intel's Collaborative Processor Performance Control Driver and Management Engine, for very demanding jobs my cpu would go up to 95C and the fan would go up to ...
1
vote
1answer
98 views

How do diagnose stuttering performance in games without buying replacement hardware?

I own a reasonably high performance, although a bit outdated (4 years), computer and have been, for some time, experiencing bad performance and about 1 second freezes on all of the games I play. I ...
0
votes
0answers
43 views

My computer is extremely very very slow

I've bought a new computer. It is supposed to be a recent, last-generation PC (Apple imac 21,5" last generation, first model). The OS takes 2 minutes to load - 1 minute for the logon screen and 1 ...
0
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0answers
22 views

Why does partition alignment affect hdparm -t /dev/sda

I have a Samsung SSD 840 EVO 120GB in my debian box, which shows disappointing performance beaureve:/home/martin# hdparm -t /dev/sda /dev/sda: Timing buffered disk reads: 242 MB in 3.01 seconds = ...
0
votes
2answers
220 views

High compressed memory usage in Windows 10

I've been having problems on Windows 10: periodically I get a "low memory" warning. A lot of the Super User questions on this topic talk about driver memory leaks, but as I'll explain below mine ...
0
votes
0answers
9 views

Cloud service to on premise file sharing optimization

On AWS I have Windows 2012(file server) & Ubuntu(ipsec vpn) E2C instance. On premise I have a Ubuntu Server(file server & ipsec vpn ). What options do I have in order to optimize sharing ...
0
votes
0answers
59 views

Google Chrome running super slow

Today I started my computer as usual. And opened the Google Chrome browser and found that I was running SUPER slow. What steps will reproduce the problem? (1) Create a new browser window (2) Choose ...
0
votes
1answer
24 views

Slow laptop loading

A few days ago my laptop started to slow loading. It has Lubuntu installed. Further more when it goes to sleep it can not be returned and I can see only black screen. Sympthoms: slow loading, when ...
0
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0answers
32 views

Why is transfering files between two Windows 7 machines so slow? [duplicate]

I am trying to transfer files large video files for my Plex server between two Windows 7 machines and it is very slow. Both are wired in, and have gigabit capabilities. I am getting 12.5 Mb/s over ...
1
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0answers
9 views

How to decide how to parallelize nested loops on GPU?

Suppose I have an algorithms which I want to implement on a GPU. The algorithm consists of a main loop, and all iterations of the loop can be run in parallel. Also, each iteration of the loop has an ...
0
votes
0answers
47 views

EXTREMELY slow transfer speed

I'm getting VERY slow transfer speeds with 3 different usb flash drives on different computers. This are the aspects I consider relevant: USB 3.0 driver is installed USB 3.0 is enabled from BIOS ...
0
votes
1answer
97 views

Will DDR4 2400Mhz RAM run on the MSI H170 GAMING M3 motherboard? [duplicate]

first question to this forum and i would be happy if someone could help me. I am building a PC and i have bought some components. I already bought the motherboard MSI H170 GAMING M3 with these specs: ...
0
votes
0answers
9 views

Does anyone have any benchmaking data for Rstudio Server?

I need to set up a Linux server that will serve over 200 concurrent users, accessing an R studio server. I will be creating J Meter scenarios to test this, but before I went through all that I would ...
0
votes
1answer
30 views

Anti-aliasing in games and its relation with VRAM

I know the fact that Anti-aliasing is a very heavy process in games and slows down the game play even on strong hardware but I want to understand it more in order to make the best choice in graphic ...
3
votes
1answer
305 views

'System and compressed memory' CPU spiking and causing lag Windows 10

After a random amount of time after reboot (20 minutes to 2 hours), my laptop would have considerable lag, locking up for 2-3 seconds every 6-10 seconds. I tried to follow What is the cause of a high ...
0
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0answers
14 views

Virtualbox shared folders performance issues

I use Virtualbox for development and I share the codes between guest and host but this seems to cause performance gaps. What is a better alternative in stead of shared folders?
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2answers
41 views

Worth getting thermal paste? Ran 20 youtube videos and got high 70 (degree C) CPU temperature and 80% RAM Usage

CPU: 2.2GHz RAM: 6G OS: Win7 Model: Samsung NP700Z5BH Usage: Image Processing #Is it worth upgrading to 8G RAM too? click to enlarge
70
votes
3answers
8k views

Why are smaller capacity SSDs slower?

I was reading this Tom's Hardware article on testing SSDs and came across the following claim: With SSDs, performance varies by capacity point. Smaller drives tend to be slower than larger ones, ...
0
votes
0answers
18 views

How to diagnose “waiting”?

I have a new modern Linux laptop (not brand new, 3 months now), 8 cores, 16 GB of memory, SSD (system) + HDD (data) with a plenty of space on both, nothing to be slow. It indeed takes seconds to boot. ...
1
vote
2answers
28 views

Firefox frequently hanging, but no Javascript? Browser environment corrupted?

Recently my browser (Firefox latest version) has been hanging when visiting heavily commercialized sites even though I have Javascript and YouTube and other programmatic features disabled. How can a ...
0
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0answers
5 views

Why does Maya's Create | Cameras submenu load slowly every time?

When hovering over menu items, submenus typically render snappily. However, when I hover over Create | Cameras (1), the Maya interface freezes for 10-25 seconds until the Cameras submenu is rendered ...
0
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0answers
29 views

Higher ram frequency and timings slowing my games?

The RAM I have is Gskill Ripjaws X it goes up to 2133MHz at 1.6v and is XMP compatible. Before yesterday my RAM was running at the slowest speed and at 1.5 volts and when I played Smite, Black Ops 3 ...
0
votes
1answer
36 views

Linux very slow and uresponsive - linux swapper process high usage

My laptop with archlinux kde5 is slow and unresposive, to do all task, open chrome or dolphin, etc. and sometimes freezing for 10-30 seconds like if i have a lot cpu usage, i try with different ...
1
vote
1answer
27 views

Dual channel of ram with mismatch size

My laptop have 2GB Ram because i have two ram sloths want to add more. But Before I add more ram. I want know that i have bought a 4GB of ram. without thinking and knowing about dual channel of ram. ...
0
votes
1answer
31 views

Nvidia GTX 960 Lower FPS If Overclocked

I am trying to over-clock my EVGA NVIDIA Geforce GTX 960. I am using EVGA precision X to do so. Whenever I try changing the base clock even a little I instantly to 1/4 of the original performance. I ...
1
vote
3answers
49 views

How to check running processes and get suggestions on garbage to kill? [closed]

As a good 'power user' my Windows 7 install has a few years running strongly. I just opened task manager and I have 185 processes currently running (granted most are chrome windows). I know how to ...
0
votes
4answers
63 views

Can a 65W adapter slowing my 95W dell laptop? [duplicate]

My highly configured Dell Latitude E6410 laptop has become extremely slow, even for browsing or multitasking for the past 14 months. I thought it was because of Windows, so I tried fresh installations ...
0
votes
2answers
42 views

Will Second 2560x1440 monitor slow down my iMac?

I have this iMac: http://www.hoxtonmacs.co.uk/collections/imac-27-inch/products/imac-27-inch-core-i7-3-4ghz-mid-2011 It has 32GB RAM, and I use it to edit videos in Final Cut Pro X and make music ...
-1
votes
1answer
33 views

Should i install Windows on the fastest sequential drive or fastest random write drive?

I currently have 4 HDDs in my rig and i want to set it up in the most performant way. My fastest sequential write drive (2) can write at 85MB/s with 0.95MB/s random write speed. However my slowest ...
0
votes
2answers
115 views

WIll partitioning an SSD make it slower? [duplicate]

Having read a number of SSD reviews, in particular, of those made by Crucial (a.k.a Micron), I've come to the conclusion that partitioning an SSD is going to make it slower. Here is the logic: Those ...
0
votes
0answers
133 views

High CPU usage by Service Host: Local System (Win10, 64-bit): ntoskrnl.exe!KeSynchronizeExecution + others

Here are screen-shots from Process Explorer which identifies ntoskrnl.exe!KeSynchronizeExecution as one of the ever-running processes: I don't know what to do with this info and cursory google ...
0
votes
0answers
31 views

Which Block and Buffer sizes to improve Program I/O Win7 X58mobo 12GB

I've done some major system tuning in the past at digital around 1993 (23 years ago). Their computers has hundreds of software adjustments for the hardware. The disk I ran then was directly in memory ...
-1
votes
2answers
45 views

Best bang-for-my-buck proccessor? [closed]

I first want to start off saying that this is not at all based on opinions, and in fact I do not want your opinions. What I want are cold hard screenshots and facts, that will show me which type of ...