I noticed when having some trouble with code I was testing that the CPU was becoming exhausted and I would have to reboot. After rebooting a couple times I decided to check for other problems before trying my code again. That's when I noticed that the CPU with the idle process was through the roof:
I wanted to use lsof on the process, but apparently that is not an option with kFreeBSD. I tried using sockstat, but it seemed that no parameters I tried worked. I tried searching online, but all the documentation seemed to be for FreeBSD and not kFreeBSD. The man page didn't seem to be much help either.
Dear All,
Our HPUX 8 GB 8CPU database server is behaving abnormally for the last 4+ weeks. I have generated a sar output and it is here-
11:46:52 %usr %sys %wio %idle
11:46:53 1 1 6 92
11:46:54 0 1 0 99
11:46:55 0 1 0... (3 Replies)
Since yesterday the vmstat command is displaying the cpu idle time at 100%At each time interval. It never changes. Not sure what it means other than it Quit calculating that stat. And I'm curious why. Using sar I can display a correctCpu idle percent, but vmstat does not. Any ideas why or... (2 Replies)
hi,
i want to know cpu utilizatiion per process per cpu..for single processor also if multicore in linux ..to use these values in shell script to kill processes exceeding cpu utilization.ps (pcpu) command does not give exact values..top does not give persistant values..psstat,vmstat..does njot... (3 Replies)
Hi, I checking yesterday's SAR logs for one of our servers and it was showing that utilisation was down to 0% for 10 minutes at 2am. We're unaware of any jobs running at this time so need to find out which process caused this spike.
Is there anything built into SAR (or does anything else exist)... (11 Replies)
I am using Ubuntu 9.04. I want to write a shell script to get the information about cpu idle from top command at the real time when i call it, compare cpu idle with 20 (20%), if cpu idle > 20 exit 1, vice versa exit 0. Anybody can help me to resolve it ?
Thanks alot. (7 Replies)
I need a shell script that will monitor a few conditions and not execute until the these conditions are met. The problem I'm having is that I can not perform a database snapshot (backup) of a sybaseIQ database unless the CPU Status Idle % is above 60% or the snapshot (backup) fails.
If... (2 Replies)
Hi Everybody,
Can anybody explain how CPU idle% is about 50%, but runq-sz more than 1?
sar from Solaris 10:
00:00:05 %usr %sys %wio %idle
17:00:08 27 12 0 61
17:20:05 40 15 0 45
17:40:05 27 12 0 61
18:00:05 23... (2 Replies)
Discussion started by: sant
2 Replies
LEARN ABOUT LINUX
sockstat
SOCKSTAT(1) BSD General Commands Manual SOCKSTAT(1)NAME
sockstat -- list open sockets
SYNOPSIS
sockstat [-clh] [-p ports] [-P pid|process] [-U uid|user] [-G gid|group]
DESCRIPTION
The sockstat command lists open Internet or UNIX domain sockets.
The following options are available:
-c Show connected sockets.
-l Show listening sockets.
-h Show a usage summary.
-p ports Only show Internet sockets if either the local or foreign port number is on the specified list. The ports argument is a comma-
separated list of port numbers and ranges specified as first and last port separated by a dash.
-P pid|process
Only show sockets of the specified pid|process. The pid|process argument is a process name or pid.
-U uid|user
Only show sockets of the specified uid|user. The uid|user argument is a username or uid.
-G gid|group
Only show sockets of the specified gid|group. The gid|group argument is a groupname or gid.
If neither -c or -l is specified, sockstat will list both listening and connected sockets.
The information listed for each socket is:
USER The user who owns the socket.
COMMAND The command which holds the socket.
PID The process ID of the command which holds the socket.
FD The file descriptor number of the socket.
PROTO The transport protocol associated with the socket for Internet sockets, or the type of socket (stream or datagram) for UNIX
sockets.
LOCAL ADDRESS For Internet sockets, this is the address the local end of the socket is bound to (see getsockname(2)). For bound UNIX
sockets, it is the socket's filename. For other UNIX sockets, it is a right arrow followed by the endpoint's filename, or
``??'' if the endpoint could not be determined.
FOREIGN ADDRESS (Internet sockets only) The address the foreign end of the socket is bound to (see getpeername(2)).
SEE ALSO netstat(1), protocols(5)HISTORY
The sockstat command appeared in FreeBSD 3.1.
AUTHORS
The sockstat command and this manual page were written by Dag-Erling Smorgrav <des@FreeBSD.org>.
The sockstat command was ported to Linux by William Pitcock <nenolod@nenolod.net>.
BSD May 18, 2008 BSD