Questions tagged [performance]

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

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Why is Task Manager's Network Usage off by about 50%?

This is an interesting thing I've noticed since my internet upgrade (up to 100MBit/s downstream) and I'm not really sure what exactly is happening here – which boggles me. :) This discrepancy seems to ...
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21 views

raid(5)-hdd poor performance vs single ssd drive

i have a raid 5 configuration on HP gen9 server with eight hard disks (hp-10k-1.2TB disks). that server intended to serve as a Microsoft SQL sever and contains a database with 143GB size. i have run ...
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What can I do to make my Vuejs application load faster?

I have a pretty simple Vuejs application that is hosted under NGINX. My hardware is Raspberry Pi 3B+ (OS: Raspbian). Every time I go to my application from any device in my network (Windows computer, ...
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76 views

How do I measure the time taken for Samsung's Intelligent TurboWrite buffer to be empty again?

I have a 1 TB Samsung 860 QVO SSD which is Samsung's QLC NAND SSD offering. It has an SLC cache used as a buffer during writes and I observed speeds of upto 520 MB/s for up to 10 gigabytes of ...
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42 views

What exactly is FullScreen Optimization in Creator's Update?

I was not able to find any documentation or description, official or unofficial, on what the "fullscreen optimization" really does? It turns "true" fullscreen mode into a hybrid Borderless Windowed ...
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PC Lagging After Installing New M.2 SSD

My Pc: 3 Monitors Windows 10 pro Ryzen R7 1700 GTX 1060 3GB ASRock AB350 Pro4 Crucial P1 1tb 3D NaND NVMe PCIe M.2 SSD - CT1000P1SSD8 So After I installed my new SSD and letting my computer run ...
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96 views

git status is really slow only on one computer

Our organization has about a dozen developers with the same model of computer in their workstation (Dell XPS 15 9570), all running Windows 10. We work from a large-ish git repo (about 60,000 files, 10 ...
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37 views

Queries run slow after updating database from SQL 2008 r2 to 2014

I've changed my database edition from 2008 r2 SQL server express to 2014 enterprise edition. The point is, queries run like 3 times slower than the old server. I'm testing on the same data and I've ...
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MySQL 5.1.73 Tuning for PHP5.6 Application

I have a PHP5.6 application running Symfony 2.x, backed by MySQL 5.1.73. We are currently experiencing latency in our data tier during peak load. During normal operation we see about 2k queries per ...
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Matlab symbolic toolbox much slower than MuPAD I thought it relies on

Basic operations on polynomials seem to be extremely slow in Matlab. See the following code: syms x y p = 1 + x + y + x*y tic for i=1:10000 coeffs(p); end toc tic for i=1:10000 q=expand(p*p); end toc ...
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Is it possible to accelerate my office's stream capture process?

Hoping someone has had experience with this roadblock. As a law office, one of our tasks is to capture court proceedings that were streamed within the last couple of days. This task is complicated by ...
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84 views

Windows 10 - Nonsense memory usage

Let's start this off with saying that I know exactly how things work in computer and by memory leak I mean a piece of data stored in memory that is accidentally put there or put there for reason but ...
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I have a query of 5 tables and about 120,000 rows of outputs. How can I display them in the grid for high performance? sqlserver optimize

I have a query of 5 tables and about 120,000 rows of outputs. How can I display them in the grid for high performance? microsoft sqlserver microsoft visual studio
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188 views

What does HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\SubSystems\Windows\SharedSection do?

So I was watching a video on YouTube on how to squeeze performance out of an integrated graphics card. The video instructed to change the "SharedSection=1024,3072,512" attribute(?) in the registry ...
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66 views

Why the Pentium 4 can no longer do simple web browsing?

Back in 2005, my first PC was somewhat underpowered: Some ASRock motherboard with S3 Pro Savage onboard graphics Celeron 2.0Ghz 256+128MiB of RAM 10GB HDD Yet I was still able to do everyday ...
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63 views

speedtest-cli very slow although network speed is fine

I'm encountering a strange problem here. On my local homeserver(Debian 9.9), speedtest-cli and it's python pendant are freaking slow. Since I use it to monitor my ISP connection stability, this is a ...
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21 views

Temporary freezes even on small load

I have the following setup: ASUS B360M-E TUF Aura Sync Intel Core i7-9700K 4.9GHz 16GB DDR4 3000 MHz Dual channel memory NVidia GeForce GTX 1660 6GB DDR5 500GB SSD Western Digital Blue Chieftec E85 ...
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53 views

Why does Illustrator run slow when high resolution images are imported to it?

I import a high resolution (more than 6000x6000 pixels) into Illustrator while designing. This makes Illustrator operations a little slow. Similar thing happens when you use some stipple shading brush ...
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31 views

Laptop Unusually Fast in Safe Mode but Unusually Slow in Normal Mode (Windows 7)

This issue started early last week with my laptop. It boots up just fine, but after about five to ten minutes of usage, applications slow down, then eventually stop responding altogether, and I have ...
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How to permanently apply command line switches to google chrome

I am trying to limit google chromes process ram & memory usage, I understand that the devs have built this in using the command-line-switch: --process-per-site... However, this is only run when ...
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Computer suddenly very slow

I'm currently using a Dell computer, running on an Intel i5 CPU, which is about two years old. It's always had pretty good performance for the few video games I play – Minecraft and Sims, mostly – and ...
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62 views

Maven clean install very slow?

Im currently having a problem that I believe is Maven. For an university project, we are requiered to use intelliJ IDEA, java SDK, Apache Maven and Isis. I tried to follow the tutorial for Isis, ...
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92 views

Pathetic write speed to USB 3.0 flash drive

My new Patriot 128Gb rage 2 flash drive is slow as molasses. It's spec'd to 150 Mb/s write speed, actually delivered 68 Mb/s the first time i backed up 1.45 Gb on it. That's ...adequate. But since the ...
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53 views

How to intentionally corrupt performance counter for testing purpose?

I want to intentionally corrupt performance counters (Perfdisk, PerfNet & PerfOS) to verify whether it is rebuild properly or not by our application since it depends on these performance counters. ...
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Touch screen input lagging when load high - Ubuntu 18.04

I have a touch screen connected to a machine that's running a number of CPU intensive processes. It's running a AMD Ryzen Embedded V1605b 8 virtual core CPU. Average load is around 8, but I can ...
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53 views

VMWare Player - increase 3D performance on XP guest

Ive set up a Windows XP (SP2) Guest machine. I want to use it to play some old games. But here is the problem: 3D works baaaaaad. Most of the time I get only one to five fps. And this in games created ...
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launching multiple instances and performances

I am making some benchmark tests and I use "truebench". This is a simple C program which just do a memset and a memcpy several times. On my laptop, when I launch only one instance I obtain 62s but ...
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65 views

Usable RAM is too low as compared to installed RAM

I have gone through the articles here, here and over other sites.However, unable to glean any actionable details for my issue. I installed additional RAM in my old laptop for performance improvement -...
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28 views

MicroSD card performance

I am having problems with microSD performance, I did these test using HD Tune and a Kingston FCR-HS3 (https://www.kingston.com/en/flash/readers/fcr-hs3) on a USB3 port. I am a bit confused, ...
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33 views

I still battle with 100% HDD usage whilst actual transfer speed drops to less than 3 Mb/s

Windows 10 is so frustrating. I know there have been previous posts about this topic. Tried all of the suggestions, but no long term solution still in 2019. My i7 laptop takes 2 to 4 minutes to boot (...
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Hyper-V % Total Run Time counter almost never exceeds 50%

the weekend before we saw that some virtual machines had low performance assuming a bottleneck in the cpu since migrating to an other host resolved the issue and the following performance counter was ...
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137 views

ZFS - HDD performance strongly varies in 3-way-mirror among vendors

Prerequisite We have a FreeNAS System with a Pool consiting of 5x"3-way-mirror". The disks per mirror are from different vendors but with the same "on-paper" performace-characteristics. Pool-Layout:...
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25 views

Comparing Performance of Desktops vs Laptops

So, there is not much clear answer lying around the internet, but I am still seeking for one. Supposed if I were to compare, a Desktop with Intel i5 6700K vs a Laptop with Intel i5 6700U; with the ...
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56 views

Does Windows automatically load files on the desktop? [closed]

I thought I'd heard that Windows 10 automatically loads all files on the desktop to the RAM or at least loads them to the vram on startup, specifically through superfetch. I heard that this can slow ...
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Optimization of PostgreSQL ETL Processing Pipeline

I’m looking for suggestions to create several different postgresql.conf versions: one optimized for Writing, the second optimized for Reading. Context I ETL dozens of very large (multi-GB) text ...
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115 views

Does adding too many entries to the hosts file causes internet slow down?

I just wanted to clarify one thing, Does adding too many entries to the %windir%/system32/drivers/etc/hosts causes internet slow down? Does duplicate hosts entry slows down browsing performance? ...
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29 views

Will replacing 4 GB DDR3 ram (2GB+2GB) with 10 GB DDR3 ram (8GB+2GB) work with Intel i3 processor?

I have system with Intel i3 processor, 4 GB DDR3 ram (2GB+2GB). I am thinking to expand ram with buying 8GB DDR3 ram. Will Intel i3 processor work with configuration of 10 GB DDR3 ram (8GB+2GB)? What ...
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17 views

OBS: higher CPU usage in game when obs is running

I'm experiencing a weird issue with OBS, where having it running will cause a game (in this case Colobot) to use more CPU, in my case ~10-15% (it ends up going over 100%, which noticeably degrades ...
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12 views

performance testing for Desktop application using load runner

I am using a desktop application on Silverlight. Please help me with the protocol that need to be selected to record and load test the application using load runner. I am using a trial version on LR.
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36 views

Tesseract performance differences

I have a few machines that run tesseract-ocr 4.0 for different applications. The machines have similar configuration(4 cores, 16 GB memory), and all of them run Ubuntu 16.04.5 LTS. However, in the ...
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14 views

Jmeter Configuration

I need help to configure Jmeter. Can anybody help with this following error (if loop count is not -1 or forever, duration will be min(duration, loop count*iteration duration) Note that system time is ...
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141 views

Ubuntu 18.10 slow boot on SSD with dual boot Windows 10

I have a Lenovo y50, core i7, 16gb RAM with a 1TB Samsung Evo 6 SSD setup with the following structure - Ubuntu 18.10 - full disk encryption on 750gb. (No swap partition for the ubuntu) Windows 10 - ...
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7 views

optimalisation: while loop with an option to repeat current loop and continue with the next one

My goal is to use scanimage to batch scan a multi-page document/book with an option to repeat the current page scan if I choose to (e.g. when the page was not scanned in sufficient quality) and to ...
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Computer slow on booting from SSD or USB

I have got an Asus P10S-M WS motherboard, a Intel i7-6700 CPU, a SSD with Ubuntu 18.04 installed and a 8GB DDR4 ram stick. When i try to boot it from the SSD it takes a long time to load the login ...
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127 views

What Firefox tabs take more CPU and RAM, and how to stop it?

When I open Firefox with many tabs, my Linux machine becomes slower, and in "top" I see a process named "Web Content" which takes a lot of RAM and CPU. I guess it is related to tabs running process in ...
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External hard drive slow file access and crashing

I think my WD Elements 1TB external HDD probably crashed as I was suddenly no longer able to access my files without Windows Explorer crashing first and then Windows freezing until I forcefully unplug ...
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177 views

On which track does my hard drive starts?

Lots of questions and discussions about if your hard drive is faster on the inner- or outer-most track, but nothing about how to figure out if your hard-drive actually starts at the outer-most tracks. ...
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Does spread spectrum clocking degrade a CPU's performance and cause it to operate at higher temperatures?

Does spread spectrum clocking cause a CPU to operate at higher temperatures? If so, why? Spread spectrum clocking minutely varies a CPU's clock speed to spread out RFI to meet FCC and EU guidelines. ...
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Can I force a specific unit of measure for sync percentiles in fio output?

I'm using fio 3-13 to benchmark an SSD. The job file contains multiple jobs to be run sequentially (with the stonewall parameter), but they all contain fdatasync=1. As a consequence, the output ...
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34 views

JMeter-How to maintain Constant Throughput throughout the test while varying Concurrency

I'm trying to put the throughput ( transactions per seconds) as a constant for a certain period of time by changing the Concurrency. Scenario: I'll introduce 100 users in the system, no ramp-up time ...