Re: [gentoo-user] what is overloaded my X server?
Alan McKinnon mentions yet another cool utility: xrestop is also useful Cool! Great tip! Again. Wonko
Re: [gentoo-user] what is overloaded my X server?
2009/11/25 Helmut Jarausch jarau...@igpm.rwth-aachen.de: Hi, on one of several machines and only occasionally my X-server (/usr/bin/X) takes nearly 100% CPU. I have killed some applications but this didn't help unless I killed X itself and restarted it. Is there any way to find out what is hogging my X server? Another thing worth note is what version of the kernel you are running versus how updated X is. I noticed when I migrated to libxcb under a 2.6.27 kernel that X starts running much more slowly for strange cases (like when audio is running, for example, X hogs the processor). I don't have a lot of insight as to how to determine which program makes X run hot, except for running very few things in X and starting a program and keeping an eye on something like top. But, in any case, another solution may be to keep the kernel updated if you are running the latest X software. ~daid
Re: [gentoo-user] what is overloaded my X server?
daid kahl wrote: 2009/11/25 Helmut Jarausch jarau...@igpm.rwth-aachen.de: Hi, on one of several machines and only occasionally my X-server (/usr/bin/X) takes nearly 100% CPU. I have killed some applications but this didn't help unless I killed X itself and restarted it. Is there any way to find out what is hogging my X server? Another thing worth note is what version of the kernel you are running versus how updated X is. I noticed when I migrated to libxcb under a 2.6.27 kernel that X starts running much more slowly for strange cases (like when audio is running, for example, X hogs the processor). I don't have a lot of insight as to how to determine which program makes X run hot, except for running very few things in X and starting a program and keeping an eye on something like top. But, in any case, another solution may be to keep the kernel updated if you are running the latest X software. ~daid What is the process that causes the trouble? After the latest update I also found my KDE to be under high cpu load. The offending process was kwin. After some googling I found that switching off Vsync could help me. This option is in System Setting - Desktop - Advanced Options. That helped in my case. Hope, that can help.
Re: [gentoo-user] what is overloaded my X server?
Thanks David, thanks Zhen! I'm running the 2.6.31-gentoo-r6 kernel, xorg-server-1.6.5-r1 and x11-drivers/ati-drivers-9.11 So, this is quite recent. I've patched my xorg-server as described here http://www.mail-archive.com/gentoo-am...@lists.gentoo.org/msg11704.html I don't run KDE and most of the time everything works just fine. Then, suddenly X takes much CPU time, the mouse gets nearly non-responsive. I have killed nearly any user process without any change. Only killing X itself cures the problem. Of course, I have reemerged x11-base/xorg-server x11-drivers/ati-drivers and I have run revdep-rebuild. Probably I have to somehow compare every lib on the faulty machine to another once which should have identical packages. Thanks again, Helmut. On 26 Nov, daid kahl wrote: 2009/11/25 Helmut Jarausch jarau...@igpm.rwth-aachen.de: Hi, on one of several machines and only occasionally my X-server (/usr/bin/X) takes nearly 100% CPU. I have killed some applications but this didn't help unless I killed X itself and restarted it. Is there any way to find out what is hogging my X server? Another thing worth note is what version of the kernel you are running versus how updated X is. I noticed when I migrated to libxcb under a 2.6.27 kernel that X starts running much more slowly for strange cases (like when audio is running, for example, X hogs the processor). I don't have a lot of insight as to how to determine which program makes X run hot, except for running very few things in X and starting a program and keeping an eye on something like top. But, in any case, another solution may be to keep the kernel updated if you are running the latest X software. ~daid -- Helmut Jarausch Lehrstuhl fuer Numerische Mathematik RWTH - Aachen University D 52056 Aachen, Germany
Re: [gentoo-user] what is overloaded my X server?
I'm running the 2.6.31-gentoo-r6 kernel, xorg-server-1.6.5-r1 and x11-drivers/ati-drivers-9.11 So, this is quite recent. Only killing X itself cures the problem. Of course, I have reemerged x11-base/xorg-server x11-drivers/ati-drivers and I have run revdep-rebuild. Probably I have to somehow compare every lib on the faulty machine to another once which should have identical packages. Another thing you might try it to have X automatically reconfigure itself. I find that my xorg.conf gets somewhat bloated from my manual edits, lack of bad commenting, and trying lots of options. This resulted in my machine loading a lot of modules, and I wasn't really sure which ones i needed and which ones I enabled for what reasons over the last three years since I compiled this machine. Make a copy of xorg.confcopy it to somewhere like /etc/X11/xorg.conf.backup Then let it autoconfigure: $ X -configure That will make a temporary xorg.conf which you should move to /etc/X11 or ~/ depending on your setup. It could be that one of the modules you're loading into X is the cause. I had done this recently as well trying to solve my X processor problems, and it might be useful. Alternatively, you can just comment out one-by-one any modules or devices you're loading with xorg.conf and see if any of them are responsible. It's more manual work than rebuilding all your libraries, but it beats the hell out of re-emerging your whole system on a guess Regards, daid
Re: [gentoo-user] what is overloaded my X server?
2009/11/25 Helmut Jarausch jarau...@igpm.rwth-aachen.de: Hi, on one of several machines and only occasionally my X-server (/usr/bin/X) takes nearly 100% CPU. I have killed some applications but this didn't help unless I killed X itself and restarted it. Is there any way to find out what is hogging my X server? Running accelerated graphics on my intel card (945GM) for things like compiz would always make X eat my processor time like mad. The workaround I used was not to accelerate graphics on a crappy card. Not sure if this applies to you. Regards, daid
[gentoo-user] what is overloaded my X server?
Hi, on one of several machines and only occasionally my X-server (/usr/bin/X) takes nearly 100% CPU. I have killed some applications but this didn't help unless I killed X itself and restarted it. Is there any way to find out what is hogging my X server? Many thanks for a hint, Helmut. -- Helmut Jarausch Lehrstuhl fuer Numerische Mathematik RWTH - Aachen University D 52056 Aachen, Germany
Re: [gentoo-user] what is overloaded my X server?
On Tuesday 24 November 2009 17:55:20 Helmut Jarausch wrote: Hi, on one of several machines and only occasionally my X-server (/usr/bin/X) takes nearly 100% CPU. I have killed some applications but this didn't help unless I killed X itself and restarted it. Is there any way to find out what is hogging my X server? Many thanks for a hint, I'll be stating the obvious, like ps axf and lsof perhaps? -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] what is overloaded my X server?
On Wednesday 25 November 2009 01:34:55 Mick wrote: On Tuesday 24 November 2009 17:55:20 Helmut Jarausch wrote: Hi, on one of several machines and only occasionally my X-server (/usr/bin/X) takes nearly 100% CPU. I have killed some applications but this didn't help unless I killed X itself and restarted it. Is there any way to find out what is hogging my X server? Many thanks for a hint, I'll be stating the obvious, like ps axf and lsof perhaps? xrestop is also useful -- alan dot mckinnon at gmail dot com
