On 2012-02-21 14:03:56 +0000, Ben Hutchings wrote: > There is a net increase of 5 processes over this period (186 -> 191). > Maybe the extra disk activity comes from loading programs that aren't in > cache?
The new processes during this period were: PID PPID USERNAME GROUP STDATE STTIME ST EXC S CPU CMD 876 3257 vinc17 vinc17 2012/02/21 10:40:23 NE 0 E 0% <zsh> 877 876 vinc17 vinc17 2012/02/21 10:40:23 NE 0 E 0% <acpi> 878 3257 vinc17 vinc17 2012/02/21 10:40:24 NE 0 E 0% <ls> 879 3257 vinc17 vinc17 2012/02/21 10:40:24 NE 0 E 0% <zsh> 880 879 vinc17 vinc17 2012/02/21 10:40:24 NE 0 E 0% <acpi> 881 2660 root root 2012/02/21 10:40:24 NE 0 E 0% <ifconfig> 882 2 root root 2012/02/21 10:40:30 N- - S 0% kworker/1:3 883 2660 root root 2012/02/21 10:40:30 NE 0 E 0% <ifconfig> 884 3257 vinc17 vinc17 2012/02/21 10:40:33 N- - D 0% rsync 885 884 vinc17 vinc17 2012/02/21 10:40:34 N- - S 1% zsh 886 885 vinc17 vinc17 2012/02/21 10:40:34 NE 0 E 0% <zsh> 887 885 vinc17 vinc17 2012/02/21 10:40:34 NE 0 E 0% <zsh> 888 887 vinc17 vinc17 2012/02/21 10:40:34 NE 0 E 0% <zsh> 889 885 vinc17 vinc17 2012/02/21 10:40:34 NE 0 E 0% <locale> 890 889 vinc17 vinc17 2012/02/21 10:40:34 NE 127 E 0% <zsh> 891 885 vinc17 vinc17 2012/02/21 10:40:34 NE 0 E 0% <zsh> 892 885 vinc17 vinc17 2012/02/21 10:40:34 NE 127 E 0% <zsh> 893 892 vinc17 vinc17 2012/02/21 10:40:34 NE 0 E 0% <zsh> 894 885 vinc17 vinc17 2012/02/21 10:40:34 NE 0 E 0% <nproc> 895 885 vinc17 vinc17 2012/02/21 10:40:34 NE 0 E 0% <chmod> 896 885 vinc17 vinc17 2012/02/21 10:40:34 NE 0 E 0% <ls> 897 885 vinc17 vinc17 2012/02/21 10:40:34 NE 0 E 0% <head> 898 885 vinc17 vinc17 2012/02/21 10:40:34 NE 0 E 0% <ssh-add> 899 885 vinc17 vinc17 2012/02/21 10:40:34 N- - S 0% ssh 900 899 vinc17 vinc17 2012/02/21 10:40:34 N- - S 0% ssh 901 2660 root root 2012/02/21 10:40:34 NE 0 E 0% <ifconfig> I recall that the disk started to become busy at 10:40:25. There are no big programs. So I don't see why such a disk activity. zsh is my shell, so that it should be more or less permanently in cache. At about 10:40:25 - 10:40:32, I started a rsync ($RSYNC_RSH is a zsh wrapper to ssh, hence the processes 885 to 900), but I got no output at all for several seconds (which is very unusual... except when this disk activity problem occurs). If I ask atop for disk details: 10:40:22 DSK | sda | busy 87% | read 121 | write 0 | avio 7 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/4 869 4408K 276K 0K 100% perl 31822 0K 16K 0K 0% atop 10:40:23 DSK | sda | busy 33% | read 54 | write 0 | avio 6 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/4 3257 5264K 448K 276K 100% zsh 31822 0K 20K 0K 0% atop 10:40:24 PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/4 31822 0K 16K 0K 100% atop 10:40:25 DSK | sda | busy 16% | read 0 | write 123 | avio 1 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/4 317 0K 120K 0K 86% kjournald 31822 0K 20K 0K 14% atop 10:40:26 DSK | sda | busy 83% | read 0 | write 380 | avio 2 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/4 31822 0K 16K 0K 100% atop 10:40:27 DSK | sda | busy 100% | read 0 | write 245 | avio 4 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/4 31822 0K 16K 0K 100% atop 10:40:28 DSK | sda | busy 100% | read 0 | write 211 | avio 4 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/4 31822 0K 16K 0K 100% atop 10:40:29 DSK | sda | busy 100% | read 0 | write 291 | avio 3 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/4 31822 0K 20K 0K 100% atop 10:40:30 DSK | sda | busy 101% | read 0 | write 368 | avio 2 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/5 31822 0K 16K 0K 100% atop 10:40:31 DSK | sda | busy 101% | read 0 | write 466 | avio 2 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/5 31822 0K 16K 0K 100% atop 10:40:32 DSK | sda | busy 101% | read 0 | write 425 | avio 2 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/5 31822 0K 24K 0K 100% atop 10:40:33 DSK | sda | busy 99% | read 3 | write 273 | avio 3 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/4 884 92K 0K 0K 85% rsync 31822 0K 16K 0K 15% atop 10:40:34 DSK | sda | busy 98% | read 23 | write 133 | avio 6 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/5 884 308K 0K 0K 92% rsync 31822 0K 16K 0K 5% atop 1429 0K 8K 0K 2% rsyslogd 317 0K 4K 0K 1% kjournald 10:40:35 PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/5 31822 0K 24K 0K 100% atop 10:40:36 DSK | sda | busy 0% | read 0 | write 1 | avio 0 ms | PID RDDSK WRDSK WRDSK_CANCEL DSK CMD 1/5 31822 0K 16K 0K 100% atop -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <http://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon) -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
