Questions tagged [performance]

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

1,023 questions with no upvoted or accepted answers
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14
votes
1answer
3k views

Slow HTTPS requests to all websites in Chrome

We have some weird behavior on a lot of machines here – computers running Windows 10 x64 and Windows 8.1 x64. Using Internet Explorer we face no problems when visiting different websites, but Chrome ...
13
votes
3answers
7k views

100% SSD Activity, 0 R/W Speed: System Hang Issue

So I've just been experiencing a weird issue with my system where it hangs and it is very unresponsive at random intervals of time (in fact, the first clue that I had an issue was when boot to desktop ...
8
votes
5answers
2k views

After plugging in a USB device, Win7 severely slows. What causes this and how could it be fixed?

This is the second PC undergoing this condition, both running Win7. On PC1 a Logitech device was connected through USB before installing it's branded driver (allowing windows to auto-install it), and ...
7
votes
1answer
627 views

Enabling Intel HD Graphics can increase memory speed?

I found that enabling Intel HD Graphics in device manager can increase memory speed about 17%. I also used Prime95 to test memory speed, and same result is found. (Prime95 results are highly dependent ...
6
votes
0answers
100 views

Insanely slow USB harddisks on Linux in 2019

We use a simple backup system at work: Every day we connect an external USB harddisk to our Ubuntu Linux server, which then calls a backup script (cronjob) at night to perform all the backup. Next day ...
6
votes
1answer
369 views

Copying files using MTP leads to 99% disk utilization

Since Android phones are no longer mounted as an external drive I'm having an issue with a copying of large amount of photos from the phone (no matter what - LG G3, Galaxy S7) to the laptop (Windows ...
6
votes
1answer
3k views

How does the Windows 10 scheduler deal with Hyper Threading since Core Parking is disabled by default for Intel CPUs?

I'm running Windows 10 (1607) on an Intel Xeon E3-1231v3 CPU (Haswell, 4 physical cores, 8 logical cores). When I first had Windows 7 installed on this machine, I could observe that four out of eight ...
5
votes
1answer
391 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 ...
5
votes
0answers
531 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 ...
5
votes
0answers
99 views

Why does top and Google Compute Engine give me two totally seperate cpu % values?

So to preface this, I haven't done much in Linux since a decade ago when I was in college, so I may just be doing something stupid. However, for this project I am working on I'm performing a load ...
5
votes
2answers
1k views

High I/O system hanging

I have a Fedora 20 box that i'm trying to import a massive amount of data in to postgres on (billions of rows). System spec: 16GB RAM, 6 core 3.2 ghz, 500GB RAID0 PCIe SSD Everytime I/O load gets ...
5
votes
2answers
3k views

How to collect data about processes network activity?

Windows has Performance Monitor and Data Collector Sets feature. Apparently, it can log all system information. I want to know, how much data, per process name, per remote IP address, was received ...
4
votes
2answers
328 views

Periodical performance drops and high HDD usage Windows10

Usually my system performs fine. However, periodically, there are temporary performance drops. Basically the Task Manager shows 100% HDD usage and the culprits invariably turn out to be system related ...
4
votes
2answers
5k 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 ...
4
votes
3answers
4k views

Windows 8.1 takes 10 seconds to open file explorer from taskbar (not from start menu)

I open "This PC", and right click to to "Pin this program to taskbar". Now there's a shortcut to explorer in my taskbar, but when i click it, it takes around 10 seconds before the explorer window is ...
4
votes
1answer
1k views

A fast modern network filesystem to replace VirtualBox's shared folder emulation

My work code repository is stored in host Linux system, and is accessed from Windows guest; currently, guest can access the repo via 'shared folder' which looks like a samba emulation. But, it just ...
4
votes
1answer
1k views

Windows 7 gets stuck with ~1% CPU. Especially with multithreading

Windows 7 32 bit, up to date, Intel i7 860. (For some reason the company runs 32bit Windows everywhere.) I tried to update all motherboard drivers etc. as far as possible. I have a performance issue ...
4
votes
0answers
366 views

Copying from WHS 2011 backup very slow

I'm setting up a new computer to replace one of my old ones, and part of doing so is extracting my Home folder from a backup I made just before wiping the old one. However, copying from the mounted ...
4
votes
2answers
1k views

Optimum Swappiness for a Linux System

I have a 64-Bit Linux PC with 4 GB of RAM. How can I find the optimum value of swappiness (/proc/sys/vm/swappiness) to be set? The default is 60 and I don't think it works best for everyone. I am ...
4
votes
2answers
758 views

Do Firefox Persona slow your computer?

I have noticed that my system has slowed down since i started using Firefox Persona. it is very frustrating to move to next tab. Is it because of the Personas or is my computer to be blamed?
3
votes
1answer
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 ...
3
votes
0answers
327 views

Windows 10 slow performance

I am at my wits’ end with Windows 10 on my PC. For the last couple of weeks after startup the PC runs extremely slowly. For example, it will take minutes to perform a button click event. Now, I have ...
3
votes
0answers
60 views

Can I tell how much multi-threading I'm using each day?

Is there a way to determine (or even better, to log) how much benefit I'm getting from my computer's multi-threading capabilities? Background: My higher-ups are proposing to give me and my team new ...
3
votes
0answers
566 views

Two systems with identical GPUs, have very different performances when running Tensorflow script on GPU

I have two computers with the same GPU(GTX 1080), installed the same copy of OS and softwares. But when I run my tensorflow program(an RNN model), the speed are very different. One is about 1.5x ...
3
votes
0answers
754 views

What makes Windows 10 slow to respond to basic actions?

I own a pretty powerful laptop (Gigabyte Aero 14), equipped with a quad-core Intel i7-6700HQ @ 2.60GHz, upgraded to 32 GB DDR4 RAM, and a Samsung 950 Pro NVMe 512 GB SSD drive. It's also equipped with ...
3
votes
0answers
741 views

What are the risks of setting VirtualBox CPU count up to the *logical* CPU count?

The GUI and the documentation of VirtualBox warn about setting virtual CPU count higher than the physical CPU count: You should not, however, configure virtual machines to use more CPU cores than ...
3
votes
1answer
277 views

Is it possible to use intel integrated graphics card along with nvidia geforce 940mx?

Is it possible to use intel integrated graphics card along with nvidia geforce 940mx? I am using windows 10 64 bit, directx version 12. I am playing game Rise of Tomb Raider which is not smooth enough....
3
votes
0answers
2k 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 ...
3
votes
1answer
832 views

MMC card reader slow on Linux

I have been searching in and out on google and the forum about the issue I am experiencing with Linux, with no luck so far. This is my system: System: Host: wally Kernel: 3.13.0-37-generic x86_64 ...
3
votes
0answers
722 views

Ridiculously slow read/write between two SSDs (Linux)

So I have a Kingston SSD (120Gb HyperX 3K; SH103S3/120G) that is about two years old and just picked up a new Kingston SSD (240GB SSDNow V300; SV300S37A/240G) to go along with it. I’m trying to ...
3
votes
1answer
1k views

explorer.exe, windows 10 slow login with one user

I have 3 users on my computer using Windows 10. One of them recently became slow to login (6 seconds instead of 2). I looked in event viewer and both users have the same history when loging in. It ...
3
votes
0answers
497 views

Intel RST driver - 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 ...
3
votes
2answers
646 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 ...
3
votes
2answers
93 views

Thunderbird email from specific user is causing performance issues

In our office we are using Thunderbird. One user in particular, when using Thunderbird, has issues with sending and receiving emails. Whenever he sends an email, it takes 3 times as long to connect ...
3
votes
0answers
815 views

“Access is denied” to Admin when using Sysinternals Contig to defrag the $LogFile metadata file

I have folders with hundreds of thousands, to over a million files and subfolders in each parent. I'm reading that the NTFS log file may be responsible for slow file creation and other actions. How ...
3
votes
0answers
1k views

HDD very slow performance after full copy from SSD

The PC: Core i7-4770, 16GB RAM. There are 120GB SSD and 1TB HDD (new without any bads). On the SSD I had Windows 8.1 installed with all other stuff. Someday all programs exceeded 120GB limit and I ...
3
votes
1answer
332 views

Show dial up connection status in Task Manager

In Windows 8.1, Task Manager shows Wi-Fi, Disk, CPU usage graph in Performance tab. But, it doesn't shows usage of a dial up internet connection. How can I add dial up stats in task manager. Here are ...
3
votes
0answers
978 views

LSI SAS 2308 MPT2SAS Linux Read/Write performance

LSI SAS 2308-8e (6Gb/s per Lane) PCIe 3.0 card. Average Read/Write Raw performance for 4 SSDs is very low, around 430 MB/s (Expected 2 GB/s).I have an Intel Core i3 with quad cores and 4 GB RAM. xdd....
3
votes
0answers
2k views

Windows 8.1 Process Migration Limits CPU frequency scaling

Summary: I've noticed that with Windows 8.1 on my laptop, running a single CPU intensive program does not cause the CPU frequency to scale to its maximum value. I suspect that this is because of ...
3
votes
0answers
2k views

Too much disk activity READING event logs

On Win 7 SP1 x64, I notice that sometimes the disk gets so busy that Windows becomes unresponsive for minutes at a time. I referenced this problem on SU in the past once. I've since replaced the drive,...
3
votes
1answer
685 views

Terrible multi-threaded performance in Kubuntu in VirtualBox in Debian machine

We have an unpleasant performance issue when running our multi-threaded rendering software inside a virtual machine. We are running Kubuntu 12.04 in a VirtualBox 4.0.10_Debianr72436 which runs ...
3
votes
1answer
313 views

How can I pin point a USB file transfer bottleneck in Unix?

I'm experiencing very slow data transfer speeds over USB 2.0 on my nix box and was wondering how I can pin-point the cause of the problem. I've looked into iotop and top but the cpu and mem figures ...
3
votes
1answer
241 views

Joining G+ Hangouts slows the mouse to a crawl

Using a dual-display setup on a quad-core, win 7 desktop computer, whenever I join a Google Plus hangout, my mouse slows considerably down. Problem persist even after closing all Chrome windows. ...
3
votes
1answer
547 views

Firefox not using cache?

Some times I have issues with the wireless connection where I live. That issue is irrelevant to this (there are two IT departments managing this thing; there's nothing I can do about it). Most of ...
3
votes
1answer
898 views

How does one troubleshoot Windows hanging copying large files from external HDDs?

When I copy large file (for example over 4GB) from external WD MyBook USB 3.0 HDD to internal SATA2 HDD all of Windows just freezes. Copying files of any size on internal HDD is fine. Today I copied ...
3
votes
2answers
129 views

Speed of encrypted flash drive

I've encrypted my Transcend Jetflash flash drive (16 GB, USB2, ext2). Before the operation, the flash drive's speed was: # dd if=/dev/zero of=/media/JetFlash/file bs=1M count=256 Results with: 26,5 ...
3
votes
4answers
1k views

Slow network PC opening in network places

In My Network Places when I try to open a computer, it opens very slowly, but other PCs open quickly. What can be the cause?
3
votes
2answers
3k views

Can I turn off WMI service permanently?

I'm tired of seeing my laptop sporadically consume 100% disk usage and gigabytes of memory. Most of the time the problem is on "Windows Management Instrumentation" service. Beside disk I/O consumption,...
3
votes
1answer
6k views

Internet is extremely slow after using VPN (and exiting/restarting)

I'm a student at Penn State, and for my engineering class I use a program called SolidWorks. Penn state provides me with a fully licensed edition of this program, but for it to acquire a license I ...
2
votes
0answers
63 views

Laptop GPU Performance Low When On AC Power

HP ZBook G3 Mobile Workstation Core i7 Nvidia Quadro M2000M 150W AC adapter Windows 10 When this laptop is plugged in on AC power the 3D performance is dramatically worse than when running on ...