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

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697 views

Intel HD Graphics 530 performance issue + flickering

A few days ago I bought an ASUS N552VX laptop which has Intel HD 530 Graphics plus a dedicated NVIDIA GeForce 950M and a 4K screen, running Windows 10 Pro version 1511 Build 10586 with the Intel HD ...
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1answer
33 views

Linux host slows to crawl when ram 20% and 8 core cpu at 99% using virtual machine

I built a new Linux machine to be able to handle multitasking and running multiple virtual machines. It's an AMD 8 core 3.5GHz processor with 16MB Total Cache, 16GB 1866 DDR3 RAM, 1TB HD and a GForce ...
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0answers
22 views

Why does moving/deleting files “stall” on my PC?

My PC is Windows 10, 8GB RAM and a 2.8GHz processor. Basically, to give you an idea, whenever I drag any item onto the desktop or into a folder the file takes a long time to appear and I have to ...
4
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0answers
27 views

Why symlinks can slowdown git?

I keep my current working project on SSD drive but git folder inside is symlinked from another (encrypted) disk with mklink /J /D. SmartGit warned me that using symlinked git folder may have a ...
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0answers
38 views

Extremely slow Linux SSD

One of our Ubuntu Linux 14.04 workstations intermittently gets terrible I/O performance on its SSD. What's frustrating is that it's intermittent. Doing a full build of my C++ project should take 10 ...
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1answer
27 views

PC won't work unless rebooted

When I turn on my PC, it starts alright but within a few minutes it starts to work too slowly, not allowing me to do anything, not even opening an Internet browser. Sometimes it even freezes. If I ...
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1answer
18 views

Loadrunner correlate IDs that occur in EXTRAES section in web_URL

I am working on loadrunner to record a web application using web http\html protocol. The "WindowID" that is used in a transaction request occurs in the previous web_url - Extraes section. How can we ...
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1answer
229 views

SSD 4k random read/write QD1…32 and IOPS values

I'm a video designer and have a lot of rendering programs. I decided to buy a 120GB SSD in my PC, and I'm searching for the best performance. The important thing for best performance in SSD must be ...
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2answers
126 views

Why are USB flash drives slower than SATA SSD's?

As a broad generalization current generation SSD's have write performance of around 500MB/s. Premium USB flash drives have write performance of circa 170MB/s, looking at Kingston Predator and Patriot ...
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0answers
74 views

how to improve speed of File transfer operation

I'm using windows 7 64 bits with the following performances: CPU Specification : Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz L1 Data cache 2 x 32 KBytes, 8-way set associative, 64-byte ...
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1answer
85 views

Why file copy speed is initially higher than in average?

What is the explanation of the following phenomenon observed in local file copy speed? As you can see, it keeps stable at 120 MB/s, but at the beginning, it was nearly double of that. Is there some ...
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1answer
192 views

how to create and use a ramdisk for gaming

I have a fairly decent spec PC which I use solely for gaming. I have read that a ramdisk can significantly increase the FPS performance. Can anyone help me in how to create a ramdisk, what files/...
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0answers
64 views

What are the reasons of slow (scrolling) behavior of PowerShell?

I came up with this topic at this question: http://stackoverflow.com/questions/35652644/access-windows-2016-server-container-docker-container-via-gui (see comments). It is true that on some computers ...
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1answer
155 views

SSD Cache/Buffer for HDD RAID

I have three 3TB 5400rpm HDD's running on RAID 5 in my Ubuntu server VM as my NAS. I recently just hooked up this NAS Server directly to my Desktop via 10GB Ethernet cards and fiber optic cable (...
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2answers
132 views

Why is my processor performing worse than it should be?

I have a desktop that I use for gaming. The specs are at the bottom. I bought my computer originally, but since then I've upgraded it a lot. Other than the case, hard drive, and some wiring. As I ...
1
vote
1answer
13 views

Live A/B website performance testing

Is there a way in Chrome web dev tools, to alter the site (CSS for example) and measure / compare the loading performance before and after the edits ? If I change the CSS, as soon as I reload the ...
0
votes
1answer
268 views

Very slow execution of Excel 2016 VBA codes

I'm having a case of slow vba code execution. I find it hard to believe because I have a quad-core Core i7 processor operating at 2.6 GHz. In my workbook, I have an input form on a separate sheet to ...
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1answer
19 views

Which Operations are Considered in the FLOPS Measure?

FLOPS (floating point operations per second) is a standard measure of performance of computing. But, which floating point operations are considered? Addition? Multplication? Division? Doesn't each ...
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1answer
48 views

A dual and single channel memory [closed]

My question is in regards to potential laptop performance. Please forgive my ignorance in advance for most of this is quite new to me. I am wanting to upgrade the DDR3 ram in my laptop and also have ...
1
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0answers
249 views

Abnormally slow CPU speed in Windows 10 Task Manager, with virtualization disabled

In Windows 10 Pro Task Manager, CPU speed shows a constant and unchanging value of 1.18GHz, while nominal CPU speed is 2.50 GHz. Dual Intel Xeon E5-2680 v3, on a Intel S2600CW2S server board. Per ...
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0answers
21 views

Laptop graphics card performance issue after unplugging charger

I've a Dell laptop with a Geforce GT 650M graphics card. It's suffered from the same issue from new, though it took me ages to figure out the trigger (and I still don't have a 100% repro). After a ...
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2answers
36 views

Is the performance of a RAM drive inside a VM comparable to native hardware?

If I define a ram drive inside a VM will it behave the same as a ram drive on bare metal (with in reason). I am looking to setup a VM on my KVM node that will run a few games. Yes, one of them is ...
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votes
1answer
441 views

Disk usage is always at 100%

I have noticed that recently my computer has been slowing down. For example opening a folder would take around 20 seconds to load, moving a folder (from the same drive) would take a minute or so. When ...
1
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1answer
30 views

Laptop monitor uses a lot of bandwidth compared to external monitor

My external monitor is using a lot less bandwidth compared to my laptop monitor. This happens only when I use "remote desktop connection". When I keep scrolling down a text file at the same speed, ...
0
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0answers
17 views

django - iframe loading faster on Nexus5

Simple django code where on click loads 8mb file in the iframe. Here is a link to the hosted code : http://52.35.60.58:8000/polls/ This loading takes ~20 sec on other browsers. But on Nexus5 it ...
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0answers
68 views

My mouse pointer freezes often but pressing esc key releases it

Lately my mouse pointer freezes very often and all apps load slower now or sometimes don't respond but if i keep pressing esc key, it gets released or solved. I have searched a lot on this, common ...
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0answers
158 views

Slow Linux Desktop performance in a Virtualbox guest installation

I have a CentOS guest running on VirtualBox with GNOME 3, which is using Windows 7 as a host. This guest is configured to use all 4 of my CPUs, 2GB of RAM (which is plenty), and 128MB of VRAM. The ...
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1answer
50 views

Windows 10 acting erratically

With no warning, my apps and search icons do nothing when I click on either of them. I can eventually get the folders quick start icon to open that folder, but it takes many seconds to work. also, ...
0
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1answer
163 views

In the “High Performance” power plan, why does the CPU always shows 100% usage?

I've got a Dell Inspiron 11, model 3147, with a Pentium N3540 2.16GHz processor. I've noticed that when I chose the "high performance" power plan (at Control Panel\All Control Panel Items\Power ...
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1answer
101 views

The effects of dual booting on performance

Say I have Windows 7 but want to dual boot Ubuntu(or you know, anything else). Does downloading Ubuntu effect performance when I use Windows or, while not in use, does it just sit there and take up ...
0
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0answers
56 views

Web server IIS and Apache virtualized server

I am planning to use a web server IIS based on windows machine(Windows 10 Pro) and use the Hyper-V feature to create a virtual machine (Windows again or Linux I do not know yet) which would serve as ...
6
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6answers
3k views

Should I use a SSD or HDD for “swap” on an old computer

Introduction Let's imagine some environment where the speed is not a factor. In my case I am using a really old computer for a "server" with a lot of stupid things ( personal lab ). It is more ...
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1answer
727 views

High CPU usage and very slow performance with Eclipse

I have a very strange situation with my computer. This is Win10 with both jdk8 x86 and jdk8 x64 with 16GB ram and 3.6GHz i7 processor. I develope with eclipse ide and tomcat webserver. I have the ...
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1answer
84 views

Alternative solution for poor wireless performance due to over-saturation

Performance of 2.4Ghz wireless networks, in dense housing areas, is generally quite poor. The only "solutions" I've seen are switching channels, or switching to 5Ghz. These aren't really viable ...
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0answers
35 views

The Power Supply can influence in performance?

I bought a new computer, I have a core i5 4690, 16gb ram hyper-x, 120 gb SSD + 500Gb HDD and a Radeon R7 360 2gb, the only thing that is not new in my computer is the power supply, a 500W "Wise Case" ...
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1answer
56 views

When does CPU Usage starts to impact users or services? [closed]

I work with servers, and now, starting to gravitate more into server performance monitoring. Some application developers that I've met lately claim that Windows/Linux Services and its applications (...
0
votes
1answer
99 views

What is slowing down my computer during gaming?

I have a Dell Latitude E6410 with Nvidia Quadro NVS 3100M and Windows 10 installed. I've been regulary playing Counter Strike Source for past 1 year without a problem. But for past month or so, ...
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0answers
79 views

Windows 10 is ignoring my pagefile settings

Is there a way to make Windows follow my pagefile settings? I really don't want the pagefile on D; I'd rather have it disabled if there's no way to force it to be on C instead.
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0answers
154 views

VirtualBox Win7 Windows Update unusably slow

Problem: 190 Important windows updates take ~10hours to install, then fail, then take ~10 hours to roll back. Tried 3x. Now I'm doing 10 updates at a time, about 2.5hours each set. Environment: Win7 ...
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0answers
175 views

Windows 10 100% Disk usage with less that 15 MB/s

I have the Lenovo Y70-70. 4th gen i7, nvida gtx 960, 16 GB RAM, and a 1tb hybrid drive, so I know it can be faster. The problem is that the Disk usage regularly maxes out, and makes the computer lag. ...
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0answers
49 views

Zero cpu usage in task manager with 45-50% memory usage

I hope someone can help shed some light on this for me, I have an Asus X54H laptop running Windows 7 home that has been getting to be a little sluggish as of late. I checked the task manager to see ...
0
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1answer
55 views

Is it Optimal to balance RAM across banks

It's well known that using matched pairs of RAM in a single bank with Dual Channel Architecture is optimal, both so that the two sticks have similar timings, equal capacity, etc. But what about ...
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2answers
560 views

What is the performance difference of a Virtual Machine vs the Physical host?

Where I work we are running relatively powerful PCs using the Debian Linux Distribution. However for certain programs which we need to install it would be better to have CentOS and these would be our ...
1
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0answers
82 views

Intel PCM ( Performance Counter Monitor ) - Low hit rate for LLC

I am having Intel Xeon D-1520 CPU I tried to run Intel PCM to get the the L3 cache miss and hit ratio. L3MISS: L3 cache misses L3HIT : L3 cache hit ratio (0.00-1.00) Core (SKT) | EXEC | IPC | ...
0
votes
1answer
49 views

How can I identify processes with high CPU usage?

My CPU remains from 30-40 percent even when everything is closed. Is there a way to scan unknown/bad Windows 7 processes and apply a fix? Norton 360 is already installed. I just installed ...
0
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4answers
128 views

How do I check what is spiking the CPU while the computer is idle

My Windows 10 laptop with an i7 and 16 GB of RAM often gets the fans going full speed when I am not using it. It is a bit slow to respond sometimes when I try to wake it up to check what is going on. ...
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3answers
82 views

Laptop is slow even after wipe [closed]

I have a HP DV7T-2200 laptop that sat on the shelf for a couple of years. Recently, I decided to get it back out and let my wife use it. So I wiped it, and installed Windows 7. The problem is that ...
3
votes
0answers
87 views

How to load entire process memory from swap quickly (linux)?

I run a bunch of CPU-hungry processes in parallel, they normally use a few GB of memory each. From time to time they allocate large amount of memory too (say 150-250GB). Usually at most one of the ...
0
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1answer
70 views

Why is CPUMark rating relatively the same for the Intel 2955U compared to newer Intel Braswell chips such as N3150?

In terms of processing power only (ignoring GPU performance), why is the CPUMark performance of the Celeron 2955U (2-core, 1.4GHz) relatively close to the Celeron N3150 (4-core, 1.6GHz)? Intel ...
0
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1answer
275 views

Windows 10 file sharing on local wifi is horribly slow

As the title implies, when sharing a file / folder in windows 10 the connection is horribly slow. What I am essentially trying to do is to share a folder on one computer and access that folder and ...