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Questions tagged [performance]

Questions about improving the performance, speed, and/or overall system responsiveness of Ubuntu. Note that this is a general tag, and should be accompanied by another tag indicating what kind of performance you are referring to.

1
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0answers
16 views

spinning cursor icon - what's it doing?

I am a long time Ubuntu user and I have not seen this before. I recently installed VS Code (https://code.visualstudio.com/). When I open VS Code directly, or use file manager to open a file with VS ...
0
votes
0answers
18 views

Why is Wikipedia taking up so much RAM on Ubuntu (with Google Chrome) and how can I reduce it?

My laptop with 16GB of RAM keeps running out of RAM and the top 10 processes chewing up the RAM are always from Google Chrome tabs, some which are using 900MB of RAM: Opening Google Chrome's own task ...
1
vote
1answer
58 views

Ubuntu 18.04 is slow to boot, 53 seconds to reach multi-user target [duplicate]

Ubuntu noob here. How can I speed up boot of this system? The time after the unit is active or started is printed after the "@" character. The time the unit takes to start is printed after the "+" ...
0
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0answers
32 views

Ubuntu 18.10 CPU scaling_max_freq is lower than hardware capability

I currently have a Ryzen 1700X processor and I when run $ cpupower frequency-info I get the following output: ... hardware limits: 2.20 GHz - 3.40 GHz available frequency steps: 3.40 GHz, 3.00 ...
0
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0answers
16 views

Problem with BT logitech KB/Mouse comuter runs slow

I have a problem with my ubuntu and the logitech wireless KB/Mouse The problem is since ubuntu 14.04, then upgraded to 16.04 and now running on 18.04. About 1hr since boot, the system runs very slow....
1
vote
0answers
41 views

Slow disk write performance on nvme SSD with Ubuntu 18.10 (Cosmic Cuttlefish)

On Gigabyte 15W V8(CPU i7-8750H, Mobile HM370) the write performance on EVO 970 Pro is disappointing. The write performance is only 600 MBi compared to 2550 MBi with Win10. Disk performance Ubuntu ...
0
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0answers
81 views

Ubuntu 18.04.1 LTS is VERY slow on brand new HP laptop

I just bought a brand new laptop : a HP Spectre 13 af021nf (Core i7-8550U, 16 GB RAM, 1 TB SSD, Intel UHD 620 GPU). Good news : it runs well on Windows. Bad news : it's awfully slow on Ubuntu 18.04.1 ...
0
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0answers
27 views

Graphical Lag in Ubuntu 18.04 LTS

After installing Ubuntu 18.04 on my laptop it looks like there's some laggy animations like when I move windows or resize them or minimize or opening my applications the animation is laggy and not ...
-1
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0answers
17 views

Freezing on Asus S510U [duplicate]

I have an Asus s510u with nvidia mx150 graphics card and 12 GB ddr4 RAM. After setup I have problems with freezing. I cannot click any app. What can I do?
1
vote
1answer
31 views

Keyboard Input Lag on new 18.10 Install

I recently purchased a new SSD after my old HDD died, and decided do go 100% Ubuntu on it. The install went smoothly and I love the system, save for the slight lag between typing on my keyboard and ...
0
votes
0answers
31 views

weird refresh rate when shaking window using dragging by touchpad

hi everyone im a brand new linux user and no experience in programming but i can follow instructions and fix issues. it is just that i didnt find anyone else having the exact problem with the exact OS....
1
vote
0answers
55 views

Ubuntu Performance

I need to know about the performance of Ubuntu 18.because I couldn't get expected performance. My Laptop Config: 4 GB Ram Intel i3 processor 1 TB hard disk(60% free) Right now I am using only ...
0
votes
1answer
34 views

Properly measure execution time for benchmarking

I hope this is the correct place to ask this question. I would like to benchmark a program using some test instances. I’m primarily interested in the cpu time the program took to execute and to this ...
1
vote
2answers
40 views

SBC speed of running off of SD card?

This question's comments and answers indicate that it's generally agreed upon that trying to run a Linux-based OS computer off of a SD card is not a good idea for performance and data integrity ...
2
votes
1answer
21 views

find and -exec with multiple parameters

I have a command to encrypt (codecrypt) files like this example: ccr -aer john -R file.txt > file.txt.ccr I'd like to do a loop with several files, so I came up with this: for a in *.txt; do ccr ...
0
votes
1answer
37 views

System performance drops when even 1 core is busy on Ubuntu 18.04 or 18.10

I'm performing numerical simulation on Ubuntu 18.10 (also tried 18.04) using OpenFOAM opensource package. The problem is when I'm running a simulation even on one core, the system performance drops ...
1
vote
1answer
30 views

LXD ZFS snapshot creation slows down as number of snapshots increases

Ubuntu 18.04 LTS - LXD Ubuntu launch using loopback ZFS (about 400MB) # lxc launch ubuntu:16.04 test -s ianzfspool (I have one other idle multi-GB container using the same ianzfspool.) I have lots ...
1
vote
0answers
27 views

Slow processing speed of samba

I use samba for exchanging files within my LAN. The reason I use samba is because there is need to access the server's samba shares from Linux, Windows, and Mac. For exchanging files it works alright. ...
0
votes
0answers
167 views

how to speed up performance in gnome-shell?

I run ubuntu with Gnome-shell as desktop and I have a laggy desktop. So I would like to make a smooth desktop like in that video. The user runs archlinux with a modded versione of mutter. In that ...
0
votes
0answers
53 views

How to resolve slow and bumpy performance on screen in Ubuntu 18.04?

When I use the touchpad of my laptop the mouse pointer on screen reacts with annoying delay and bumpy. Also when typing text, the letters appear on screen with delay. In earlier Ubuntu releases I did ...
0
votes
0answers
44 views

Adjust Apache MPM event

I have a VPS with 4 GB memory. My problem with high load Apache starts to eat memory! I'm using MPM event module with the default following settings: <IfModule mpm_event_module> ...
2
votes
2answers
92 views

Not sure my swap is being used

I'm having problems trying to squeeze a bit more life from my aging desktop to teach my grandson a bit of coding. The machine was drastically slowing down to the point of unusable for 30 seconds at a ...
0
votes
3answers
44 views

Does opening a new terminal tab use equivalent system resources to opening a new window when running scripts in parallel?

Is opening a new tab in the terminal window equivalent to opening a new tab in terms of resources? I need to run 16 scripts in parallel. I do not know whether opening tabs or new terminals is the ...
1
vote
1answer
179 views

Performance Issue in latest ubuntu 18.04.1 LTS?

I have recently installed the latest ubuntu 18.04.1 LTS on my laptop. but while using I am facing performance issue. slow response when launching software. even a single task takes time to perform. ...
0
votes
0answers
41 views

Extreme Lag Xrdp when remote from home, fine when remote in from work

I have a fresh install of Ubuntu 18.04 on a dual boot Windows 10 located at my office. When logged in locally to the machine, the performance and responsiveness is great. When remoting in from a ...
0
votes
1answer
308 views

Ubuntu 18.04 lags and hangs even with powerful hardware

I've got Core i5 3.30GHz / 10GB RAM / AMD Radeon RX 460 graphics card hardware that lags like mad, but it only lags with Ubuntu 18.04. I installed the vendor drivers from AMD, but it didn't help. ...
1
vote
0answers
136 views

Ubuntu 18.04.1 performance issue [closed]

I started using Ubuntu from Ubuntu 14.04. Then I installed Ubuntu 16.04. Till now I was loving this operating system, but since I installed Ubuntu 18.04, using Ubuntu has become a nightmare for me. I ...
0
votes
0answers
49 views

strstr() performance degradation on libc-2.27.so compared to libc-2.19

Upgrading from ubuntu16 to ubuntu18 we found that performance of strstr() call has degradated drastically (we have a benchmark we run in continuous build that measures break even point beetween using ...
8
votes
5answers
602 views

Firefox freezing with 100% CPU usage for 30 seconds when launching Chromium

Recently I started to observe this very confusing and annoying, not to say worrying behaviour when having Firefox open and then launching Chromium: For around 30 seconds, Firefox' child processes ...
1
vote
0answers
78 views

How to compile `linux-tools` (containing `perf` binary) from vanilla kernel sources?

I can build working kernel packages (kernel-image and kernel-headers) from vanilla kernel git sources (plus any random patches I like) following instructions at http://veithen.github.io/2013/12/19/...
1
vote
2answers
134 views

gnome-shell on Bionic as guest in Oracle Virtualbox is super slow — system%

I just installed Ubuntu Bionic (18.04.1) (Unity desktop) on both Oracle VB VirtualBox (5.2.18) and VMware Player (v14). I have Guest Additions on both VMs. On VB, all graphics interactions are super ...
1
vote
0answers
21 views

Games freeze after a while on Lubuntu

I recently installed Lubuntu, and decided to install a few games, but they freeze after 2-5 minutes of playing. But after exiting the console by pressing CTRL+ALT+Fn and then returning back pressing ...
0
votes
1answer
568 views

Very slow boot on Ubuntu 18.04 [duplicate]

I recently switched from Windows 7 to Ubuntu 18.04 - the boot time increased significantly. I don't know squat about Linux, found some commands online and this is their result: 30.014s ...
0
votes
0answers
218 views

Ryzen System Freezing When Under Heavy Load

I have been having problems with my system completely locking up (no keyboard or mouse input, no display output change) when the CPU is under heavy load e.g. Tensorflow or Raytracing with Blender. I ...
0
votes
0answers
373 views

Graphical performance improvement for Intel HD Graphics in 18.04

I own a Lenovo Yoga 710 laptop with Intel Core i5-7200U processor integrated Intel HD Graphics 620 (Kaby Lake GT2). The graphical performance in Ubuntu 18.04 running kernel 4.15.0-33 seems to be a ...
0
votes
0answers
78 views

System lags, stuttering

I recently installed Ubuntu 18.04.1 LTS, but I have some trouble where my PC is stuttering from time to time. The whole PC lags for about second and keeps on going. Wouldn't really be a problem, but ...
1
vote
0answers
23 views

Choppy / Unusable Install after download? Also doesn't accept password?

I installed 18.04 Server first, and it never accepted the password I created (even after going into the command line to change it). So I downloaded the ISO for 18.04 Desktop and installed it without ...
6
votes
1answer
447 views

Slow boot in fresh install of Ubuntu 18.04

I recently did a fresh install of Ubuntu 18.04 on my brand new laptop ASUS ZenBook UX430UN and I am experiencing a very slow boot. I am not sure how to debug and solve this issue. I came across ...
1
vote
1answer
89 views

Ubuntu 18.04 LTS: The client area of window of some apps is black while starting

Recently I upgraded my 16.04 LTS to 18.04 LTS. After that I noticed that initialization of some apps (krusader, okular e.g.) takes more time that it took before and while starting the window they show ...
0
votes
0answers
124 views

Website connection timeout

I have 2 websites hosted on a virtual root server (ubuntu) that are not reachable anymore (timeout on both domains). Nothing was changed on the server and no new feature was deployed for both websites....
0
votes
0answers
35 views

how to remove [^$I$^] from ubuntu

if you have can you tell me how to get rid of it because when top is run it says [^$I$^] is taking up to 398% of the cpu
1
vote
4answers
144 views

downloading ubuntu (18.04.1) in my dell laptop

I wanted to know that if my dell laptop will run smoothly in ubuntu linux os(18.04.1) or not.My laptop name is "DELL INSPIRON 15 3542".I have installed win 10 pro in my laptop and now wants to install ...
1
vote
1answer
36 views

Performance issues with external IO?

I have an odd situation on my machine. I have multiple external USB 3.0 drives doing high amounts of IO (about 70-100MBps each, copying disk images or using tools like dd) but very low IO on my system ...
0
votes
1answer
88 views

Gnome overview laggy when running scaling_governor=powersave

I have a Dell XPS 13 9370 with an i7-8550u CPU which should handle Gnome without any issues. The Ubuntu version is 18.04. But now experience the following problem: When setting the scaling governor to ...
2
votes
0answers
165 views

Ubuntu 18.04.1 Slow when press Super key or clicking Show Applications

I used to have Deepin installed but recently I’ve been trying out Ubuntu 18.04.1 (GNOME 3.28.2) but it doesn’t feel as fluid compared to Deepin. When I press the Windows key or Super key, it freezes ...
0
votes
0answers
96 views

How to speed up Docker under Ubuntu 16.04

I think my containers in the docker is too slow. Start of 8 containers takes about 10-15 mins. My colleagues use docker under Mac and for the same set of containers it takes a few minutes (2-3 mins) ...
0
votes
0answers
29 views

Performance issues on new Acer laptop

I recently bought a new Acer Aspire 5. It seems to have very similar specs to an Asus I previously owned, ie Intel Core i3 and 4GB of DDR4 memory. But unlike the Asus, it has serious performance ...
0
votes
0answers
13 views

Slowness of reading youtube videos on ubuntu 18.04 [duplicate]

My ubuntu 18.04 become so slow when I open youtube's videos in google chrome or even mozila note that I have good connexion and the videos break even when the video was uploaded in the browser, any ...
1
vote
0answers
419 views

Ubuntu 18.04 LTS performs bad

I got a Thoshiba Satellite L745: i3 2310M, 8 GB RAM, 160 GB Intel SSD. The Ubuntu UI is not very responsive when navigating throught menus and files. What should I do to get better performance?
0
votes
0answers
182 views

Nvidia bad performances on Ubuntu 18.04

i'm a long time Ubuntu user, and i noticed that since i switched to Ubuntu 18.04, game perfomances are worse than anytime before. I explain with an example: i used to play The Elder Scrolls IV: ...