General :: Does Running Commands Verbosely Make Them Slower
Jul 20, 2011
I've found myself using the -v flag for lots of applications less and less (especially for trivial stuff like tar and cp). However, when I did and I was, say, unzipping a large file, it would take longer than when I didn't use the -v flag.I assume this is because the terminal has to process the text and I'm filling up whatever buffer it might have. But my question is, does this make the application actually run slower or does it complete in the same amount of time and what I'm seeing is the terminal trying to catch up?
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Aug 7, 2010
Im experiencing a strange problem with 10.04. When it first boots up its reasonably quick (as snappy as Gnome ever has been) but after its been running for a day or two it gets ununsably slow and has to be rebooted.
I dont see how it can be anything to do with my hardware as it runs OK when first started. Ive monitored RAM usage and it doesnt seem to differ much. There's always the same amount unused.
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Sep 6, 2010
I have bought one of the new Logitech wireless mice for my laptop, but it seems too "fast" - a small movement results in massive movement on the screen, its much faster than the old corded mouse I am using with my desktop.
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Jan 28, 2010
Debian lenny, old install (I've upgraded to lenny when it was just about to become the stable release), versus windows 7, fresh install.Comparing browsers speeds with numion.com/Stopwatch.html, I had results such as:Iceweasel (firefox) on linux: from 9.154 seconds to 21:860 seconds (the same webpage, reloaded)Firefox on windows: 4.32 seconds - and never much slower than thatThe fastest browser on linux was Opera, ranging from 8.562 to 5.503 secs to load the same page, but even internet explorer beat/match it with its timing of about five seconds.
I have not other browsers on windows; on linux there is aroraonqueror (KDE3), kazehakase, chrome, and dillo, besides text browsers. I didn't test on dillo; Kazehakase and chrome were the only ones which had nearly decent results, but still very bad, 11 to 13 seconds for chrome, and 21 for kazehakase. Konqueror just seemed to never finish to load the page, I gave up when it was still loading somethingfter nutes and 5 seconds.'ve emptied the cache every time I would test, and I was running almost only the browsers and not much else. Whatever comes by default on windows, and on linux, I was on openbox, with nothing much going on I guess, I think the most memory consuming processthe time, besides xorg and the browsers themselves, was dictd.
I've researched a little bit about, but not enough to make a list of possible things to change in order to improve the speed on linux. Most of the time there are people just agreeing that on windows the rendering is faster, and other people saying that with them is the opposite, with some minor variations like people saying that linux is faster for plain downloads while windows is faster for web browsing due to better graphics.
(by the way; I haven't installed any graphic card driver on windows, which is still running on 1024x768, while linux runs on 1280x1024, with the "nv" generic driver, without fancy options, not supported by my old card) The closest to a suggestion of possible solutions was someone saying tha compilation may affect performance, I guess it was both about kernel compilation, and the web browsers themselves.I'll google a bit more about how to "compile for speed", both kernels and programs (maybe the x server
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May 11, 2010
I am trying to install faac codecs on ubuntu 9.10 karmic.after running the configure and make commands i get this errors:
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Apr 26, 2011
using mint 10, now after updates my system is barely working. The programs were no longer showing in the task bar, and the system was running much slower.
[code]...
This repeated over and over again. My temperature was never to high 40-55, and I found a suggestion to update my kernel to 2.6.37-020637. After doing so there is no longer the thermal limit exceeded error but the computer is still running poorly. The system is slow and again no programs are showing up in the task bar when open.
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Feb 23, 2010
difference between make and make bzImage commands as both are used to build source code.
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Sep 22, 2010
OpenSuse 11.2
LXDE (Latest version)
It used to have a lightening speed. But now every application is taking few seconds to start, even on Konsole, the commands take some seconds to get typed ! (I literally have to wait for cursor to move and commands to get typed on Konsole). Folders are taking some seconds to get opened !
I rebooted the computer but that proved to be useless.
Here the ps output:
Code:
anisha@linux-uitj:~> pstree -Apuh `id -anisha`
id: invalid option -- 'i'
Try `id --help' for more information.
init(1)-+-acpid(1054)
[Code].....
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May 15, 2011
I am doing backups and restores to and from a backup server machine in the garage (in case of fire or theft) using rsync, and the LAN is running much slower than I think it should. Best consistent speed I get is 40Mb/s. The lights on the interface cards indicate it's in Gb mode, and the interfaces are fairly new. The router is a Netgear WNDR3700 the top-of-the-line consumer-grade router. Hardwire only, using Ubiquiti ToughCable and ToughConnectors, less than a 50' run.
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Feb 7, 2010
I am comparing distros of Linux on a computer with VERY low specs. I have a CLI only version of Ubuntu 9.10 running A-OK, but when I run lwm or just X the video flickers (which I believe is due not to the video card/driver but to the resources used). I have tried this with two video cards with the same result.
When I run puppy it flies with no setup.
I know that Puppy is designed for older systems (2.4 Kernel and all that), but is there any other reason why Ubuntu would be slow in comparison.
I am using the nv driver with a Riva TNT PCI Video card.
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Mar 17, 2011
I am running a shell script from a rc file in Linux. The shell script is going into a loop which runs for 8 hours. Now I want to prevent the shell script from running when Linux boots or I need to find a way to kill the shell script when it is running. I tried using killall, kill $! and Ctrl+C etc. Nothing seems to work. Can you suggest a way out. I am new to Linux.
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Aug 1, 2010
I would be running SQL commands (UPDATE/SELECT) from within my bash script. I am completely new to this subject. Is MYSQL used for this purpose? Alternatively, what is sqlplus?
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Jan 10, 2010
Recently I gained interest in running command from the terminal, like rhythmbox-client --play-pause and vlc --open, but I could not find the vlc's pause command under vlc. there's a way I can have a terminal display the commands that run when I do some action. For example, when I click on pause in vlc, the terminal should show me what command it used to pause vlc. What's the closest ting I can get to this?
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Apr 6, 2010
I want to make a file called file roller for Ubuntu 9.10. The folder has a file called install.sh and some others that are make.
I figure first I need to make a file and then run install.sh to install. But I don't know how to do this.
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Dec 10, 2010
I added the following line in /etc/sudoers file
<username> ALL=(ALL) NOPASSWD:ALL
after adding this if I run any command it is not asking for the password. Now I need to shutdown the remote machine with sudoers user.
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Apr 24, 2011
I just reinstalled my OS (Ubuntu 10.04) and on a new and faster drive than before. And now it's running slower! I was an IDE drive before and not it's SATA and at higher RPM's. The first thing I noticed was that my game, "Armagetron" was not the same. The graphics are really screwed up in it. It looks like a diff version altogether! And I can't find any other versions. Also the controls were different! I have never had to change the controls before. This is what it use to look like before the format: [URL]. This is what it looks like now: Then I played some other games just to see and test. They don't look different but they definitely LAG.....
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Jan 24, 2011
I have 8 cores system, but I only want to use 4 cores of it. Are there any commands to show which cores are running tasks?
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Dec 18, 2009
In a script I am writing I am trying to add logic so that the script can figure out if a remote server uses rpm or dpkg and then run the appropriate command to print a list of installed packages. This works locally, but I need to get it to work through SSH and I have no idea how to do that. The relevant portion of the script is below. It would also be nice to find a way to not need the full path to the executables but I'm not real concerned about that.So anyone know how to make this code work via SSH?
Code:
if [ -x /usr/bin/dpkg ]; then
dpkg --get-selections
[code]...
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Jul 26, 2011
Many commands in Mathematica 8 (Integrate, Simplify, etc.) seem to only be using a single core on my system. Is there any way I can change the affinity so that it utilizes all cores for computations?
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Feb 5, 2010
I have Etch running in my laptop. I found that if the laptop is only running on battery, the disk seems to performs slower than if I running on a power adapter. How do I possibly check the setting and fix it?
I'm the only user on the system most of the time and I keep it as minimal as possible so it's not other services and programs keeping the disk busy.
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Oct 1, 2010
I have a 2-year old DELL XPS M1330. I used to have Windows Vista on it, but over time, I believe it became clogged with too many programs and so I wiped the hard drive and installed ubuntu 10.04 LTS about 2 weeks ago. However, ubuntu many times seems to run slower than vista did. I have 4 GB of RAM, an Intel Core 2 Duo T8100 (2.1 GHz, 3MB Cache, 800MHz FSB), 320GB HDD, 128MB nVIDIA GeForce 8400M. Ubuntu recognizes me as having dual processors at 2.1 GHz and 3.4GB RAM, but when I'm watching a simple video, whether online or locally on the computer, my CPU usage invariably jumps to 100% and it lags. Sometimes, even simple word processing makes it slow significantly.
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Feb 22, 2011
My current script is as followed:
Code:
#!/bin/sh
su et
cd "media/ET"
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:.
[code]....
I want ET to be run as the user "et" and for some reason, I can't directly su/sudo to run the file without being in the user "et" and the "/media/ET" directory.
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Jul 17, 2010
below are the details of my system. I have bash as my current shell, some really common commands aren't working.
Do I need to do a re-installation of bash? Or how do I install a selection of bash commands which I need? (for example a subset of [URL])
Code:
root@sdptfw:~ # uname -a
Linux sdptfw.sdpt.co.za 2.4.36 #1 Tue Jul 22 13:13:24 GMT 2008 i686 i686 i386 GNU/Linux
root@sdptfw:~ # echo $SHELL$
/bin/bash$
[Code]....
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Mar 9, 2011
I need to use myevlavid2 on ns2 which is only supported for ns2 version up to ns2.30 (is not supported for newer ns2 versions): [URL] The NS installation went through well. After applying all the changes as given in the myevalvid2 installation guide, I ran the 'make' command, this is an extract of what I got:
[Code]....
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May 16, 2011
Linux bash inline command to execute a program and limit the resource.As I know, to limit the resource I can use ulimit command.But, the problem is when I set the CPU time limit 1 second, and then I want to execute another program with CPU limit 2s, the ulimit command return an error like this: bash: ulimit: CPU time: cannot modify limit: Operation not permitted and absolutely my program killed in 1 second.So, How can I make the second program running with the CPU time limit 2 seconds?
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Apr 11, 2010
I am trying to boot debian on my nexus one the guide i am using is telling me to run these commands
I am getting to the point where i type the command # cd /sdcard/debian but it tells me cd: can't cd to /sdcard/debian.
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Sep 22, 2010
I have been trying to figure out how to automatically run terminal commands on login. For example, I want to run Firefox on login. When I run 'firefox' in terminal, it opens. This is what I tried:I went to System > Preference > Startup Applications and clicked on 'Add'. I gave it a name, typed 'firefox' into the command field and left the comment blank and added it to the list, making sure that the box was checked.
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Apr 14, 2011
I am trying to run some simulations through SSH from my mac on our university SOLARIS system. My problem is that whenever I want to execute a command I get an error which says "Invalid argument". Maybe I should explain more what I want to do and what I did.Firstly I installed a software which I need to run, I did it through ThinLink, and it seems that it is running fine without a problems. I can execute all commands and scripts. Installed software contains tens of small programs. I have compiled it and assign the PATH to be able to use the software. This was still via ThinLink. Then I wanted to start to use SSH since it should be more secure and also faster for me. When I wanted to do same think as in ThinLink I got the message Invalid argument. For example I run a command which use program gensky. I wrote:
Code: gray1(dava) $ gensky 4 4 4
I got:
Code: -bash: ............/Radiance_install/bin/gensky: Invalid argument (i replaced the path to my home directory by dots) The PATH to the program seams correct but it does not run correctly. With SSH I can log into the remote machine and see all the files which I have on the disk as well as to run standard commands like mkdir etc. But I cannot run the programs which I installed.
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Feb 10, 2009
what i want to do is run two commands (nautilus and gedit) from the command line/shell script at the same time. i can obviously do && between them, but this requires the first app to close before moving on to the second one. i want to run both apps at the same time so i can run gedit with some project files open on it, and nautilus to browse those files/other files.
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Jun 18, 2009
I have set up ssh to connect with a RSA key to a router. Now, I want to be able to run a chain of commands on that router the problem is that I can't send them separated with ; cause the router doesn't understand the separation, so I have to send the "<enter>" keys somehow. I tried to do it like this:
( echo ping localhost; echo ping localhost; ) | ssh -i blah user@router
The connection is established, but it gets broken after login and no command is executed. Is there a way I could tell ssh to read a text file where the chain of commands is?
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