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<== Date ==> <== Thread ==>

Subject: Re: POSIX recursive mutex
From: Marty Kraimer <mrk@aps.anl.gov>
To: Jeff Hill <johill@lanl.gov>
Cc: "'Johnson, Andrew N.'" <anj@aps.anl.gov>, core-talk@aps.anl.gov
Date: Tue, 03 Dec 2002 11:14:56 -0600
I did a "quick and dirty" implementation of pthread_mutex asking for a recursive mutex. here is what epicsMutexTestHost shows on linux

Original

One lock pair completes in 0.969810 micro sec
One double recursive lock pair completes in 1.747160 micro sec
One quad recursive lock pair completes in 3.318290 micro sec


Fast

earth% epicsMutexTestHost
One lock pair completes in 0.423110 micro sec
One double recursive lock pair completes in 0.674220 micro sec
One quad recursive lock pair completes in 1.174490 micro sec


By the way. To get this to work I had to

#define _XOPEN_SOURCE 500


Marty


References:
RE: POSIX recursive mutex Jeff Hill

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