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There are 4 "wait" commands and it occupies like 50 % of CPU, as showed by ps aux
Please help me killing these wait process, as they are not real processes. Help would be greatly appreciated. Server performance is very poor, even login takes hell lotta time.
Moderator's Comments:
edit by bakunin: which part of "please use CODE-tags" was so hard to understand?
Does anyone know what the equivalent command to pwait on Solaris is on DG/UX. I need my script to kick off a process and wait till it is complete before continuing with the script. (4 Replies)
Hi,
is-it normal to have 86% of CPU for wait commande :
ps aux| head -20
UTIL PID %CPU %MEM SZ RSS TTY STAT STIME TIME COMMAND
root 516 86,6 0,0 12 12 - A 02 nov 2088:03 wait
oralfa01 54422 4,6 1,0 68044 39868 - A 09:20:06 2:27 oracleALFA01
If... (3 Replies)
Did not use 'wait' yet.
How I understand by now the wait works only for child processes, started background.
Is there any other way to watch completion of any, not related process (at least, a process, owned by the same user?)
I need to start a background process, witch will be waiting... (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 collect statistics with nmon. I'm very suprised about % wait of processor.
Number Of Processors: 4
Processor Clock Speed: 4204 MHz
Do U have an idea about % wait ?
│ 0----------25-----------50----------75----------100 ... (1 Reply)
Hi All,
I have two ksh script. 1st script calls the 2nd script and the second script calls an 'C' program.
I want 1st script to wait until the 'C' program completes.
I cant able to get the process id for the 'C' program (child process) to make the 1st script to wait for the second... (7 Replies)
HI All
Am on Sun OS.While trying to start a process , we could see that the port is idle and we are not able to find the process holding that port.
Below is the result we get after using netstat command. lsof command is not yet installed in our machine.
netstat -a | grep "port no"... (5 Replies)
Hi ,
In a server /tmp has almost reached 75% and i can see the File system utilization is 48Mb only , so i believe some process is using the /tmp space. I would like to know which process is using /tmp space.
# df -h /tmp
Filesystem size used avail capacity Mounted on
swap ... (9 Replies)
Hi,
I can't seem to make sense of this. My wait time is showing really high but vmstat's and topas are showing normal usage.
ps aux
USER PID %CPU %MEM SZ RSS TTY STAT STIME TIME COMMAND
root 9961810 5680.7 0.0 448 384 - A Dec 16 6703072:12 wait
... (2 Replies)
Hello All,
The system concerned has multiple processes communicating with each other using shared memory. These processes use semaphores to protect data being used amongst them. The "key" would uniquely identifies the particular semaphore corresponding to a resource for the various processes.
... (2 Replies)
Discussion started by: saptarshi
2 Replies
LEARN ABOUT DEBIAN
explain_wait_or_die
explain_wait_or_die(3) Library Functions Manual explain_wait_or_die(3)NAME
explain_wait_or_die - wait for process to change state and report errors
SYNOPSIS
#include <libexplain/wait.h>
void explain_wait_or_die(int *status);
DESCRIPTION
The explain_wait_or_die function is used to call the wait(2) system call. On failure an explanation will be printed to stderr, obtained
from explain_wait(3), and then the process terminates by calling exit(EXIT_FAILURE).
This function is intended to be used in a fashion similar to the following example:
explain_wait_or_die(status);
status The status, exactly as to be passed to the wait(2) system call.
Returns:
This function only returns on success. On failure, prints an explanation and exits.
SEE ALSO wait(2) wait for process to change state
explain_wait(3)
explain wait(2) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.52
Copyright (C) 2008 Peter Miller
explain_wait_or_die(3)