GETDELAYS(1) General Commands Manual GETDELAYS(1)NAME
getdelays -- Display delay statistics
SYNOPSIS
getdelays -c command
getdelays -p pid
getdelays -t tid
DESCRIPTION
The getdelays utility helps pin-point possible resource shortages when running an application. The SLES10 kernel includes patches to imple-
ment delay accounting, which measures the time a process spends waiting for disk I/O, swap I/O and CPU time slices. For example, if an
application is running rather slowly, delay accounting can tell you where it spends all its time.
For instance, when the CPU delay is high, this means the application is competing with other proces for run time, but is losing quite
often.
High memory delays mean that the sum of applications running on this system need more physical memory than is available, and are swapping
quite a lot.
In order to enable delay accounting, you need to specify delayacct on the kernel command line when booting the system.
Getdelays has three modes of operation:
getdelays -c command
This will invoke command and print a summary of delay statistics when the command finishes.
getdelays -p pid
This will print the current delay statistics of the process identified pid.
getdelays -t tid
This will print the current delay statistics of the thread group identified tid.
AUTHOR
Balbir Singh, IBM Corp.
Shailabh Nagar, IBM Corp.
Manpage contributed by Olaf Kirch <okir@suse.de>
April 13, 2006 GETDELAYS(1)
Check Out this Related Man Page
PAM_FAILDELAY(8) Linux-PAM Manual PAM_FAILDELAY(8)NAME
pam_faildelay - Change the delay on failure per-application
SYNOPSIS
pam_faildelay.so [debug] [delay=microseconds]
DESCRIPTION
pam_faildelay is a PAM module that can be used to set the delay on failure per-application.
If no delay is given, pam_faildelay will use the value of FAIL_DELAY from /etc/login.defs.
OPTIONS
debug
Turns on debugging messages sent to syslog.
delay=N
Set the delay on failure to N microseconds.
MODULE TYPES PROVIDED
Only the auth module type is provided.
RETURN VALUES
PAM_IGNORE
Delay was successful adjusted.
PAM_SYSTEM_ERR
The specified delay was not valid.
EXAMPLES
The following example will set the delay on failure to 10 seconds:
auth optional pam_faildelay.so delay=10000000
SEE ALSO pam_fail_delay(3), pam.conf(5), pam.d(5), pam(8)AUTHOR
pam_faildelay was written by Darren Tucker <dtucker@zip.com.au>.
Linux-PAM Manual 09/19/2013 PAM_FAILDELAY(8)
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if the value > 100 delete the line
delay time: 42.978 ms
delay time: 43.684 ms
delay time: 41.082 ms
delay time: 44.845 ms
delay time: 40000.057 ms
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to (7 Replies)
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