Script shell calculate mean arrival request duration
hello,
I have implemented this command :
the result of this command : test.txt:
so this file presents the arrival time and the name of the request or response of the sip protocol.
my purpose is to calculate :
1) the mean time duration of request = sum ( arrival_time_current_request - arrival_time_previous-request) / ( total number of request)
given that a sip request can be : ack, invite,cancel
1) I will repeat the same think with response :the mean time duration of response = sum ( arrival_time_current_resonset - arrival_time_previous-response) / ( total number of response)
given that a sip response can be : 180Ringing,200ok....etc
Thanks you.
---------- Post updated at 09:34 AM ---------- Previous update was at 06:49 AM ----------
Please how can help me ?
Last edited by Scott; 08-28-2013 at 09:18 AM..
Reason: Please use code tags
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LEARN ABOUT FREEBSD
seldrain
SELRECORD(9) BSD Kernel Developer's Manual SELRECORD(9)NAME
seldrain, selrecord, selwakeup -- record and wakeup select requests
SYNOPSIS
#include <sys/param.h>
#include <sys/selinfo.h>
void
seldrain(struct selinfo *sip);
void
selrecord(struct thread *td, struct selinfo *sip);
void
selwakeup(struct selinfo *sip);
DESCRIPTION
seldrain(), selrecord() and selwakeup() are the three central functions used by select(2), poll(2) and the objects that are being selected
on. They handle the task of recording which threads are waiting on which objects and the waking of the proper threads when an event of
interest occurs on an object.
selrecord() records that the calling thread is interested in events related to a given object. If another thread is already waiting on the
object a collision will be flagged in sip which will be later dealt with by selwakeup().
selrecord() acquires and releases sellock.
selwakeup() is called by the underlying object handling code in order to notify any waiting threads that an event of interest has occurred.
If a collision has occurred, selwakeup() will increment nselcoll, and broadcast on the global cv in order to wake all waiting threads so that
they can handle it. If the thread waiting on the object is not currently sleeping or the wait channel is not selwait, selwakeup() will clear
the TDF_SELECT flag which should be noted by select(2) and poll(2) when they wake up.
seldrain() will flush the waiters queue on a specified object before its destruction. The object handling code must ensure that *sip cannot
be used once seldrain() has been called.
The contents of *sip must be zeroed, such as by softc initialization, before any call to selrecord() or selwakeup(), otherwise a panic may
occur. selwakeup() acquires and releases sellock and may acquire and release sched_lock. seldrain() could usually be just a wrapper for
selwakeup(), but consumers should not generally rely on this feature.
SEE ALSO poll(2), select(2)AUTHORS
This manual page was written by Chad David <davidc@FreeBSD.org> and Alfred Perlstein <alfred@FreeBSD.org>.
BSD August 25, 2011 BSD