Date: Fri, 07 Jul 2006 01:01:57 -0700 From: "Philip M. Gollucci" <pgollucci@p6m7g8.com> To: questions@FreeBSD.org Cc: dev@perl.apache.org Subject: BSD::Resource and getrusage(2) Message-ID: <44AE14F5.3020608@p6m7g8.com>
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Hi, I'm trying do determine the units for one of the fields returned by getrusage(2) man page on 6.0-RELEASE-p5 says this: 2 maxrss maximum shared memory or current resident set 3 ixrss integral shared memory ru_ixrss an ``integral'' value indicating the amount of memory used by the text segment that was also shared among other pro- cesses. This value is expressed in units of kilobytes * ticks-of-execution. Ticks are statistics clock ticks. The statistics clock has a frequency of sysconf(_SC_CLK_TCK) which to me implies thats in kilobytes, but to the contrary, we have the following CPAN rt: https://rt.cpan.org/Ticket/Display.html?id=18230 I'll paste the import part of this here so you don't have to follow the link >ApacheSizeLimit on bsd systems uses BSD::Resource to get the memory and >shared-pages size. > sub bsd_size_check { > return (&BSD::Resource::getrusage())[2,3]; > } I also have a local test based on the recent Apache::SizeLimit work from Dave Rolsky where maxrss > ixrss (Apache-Test output snipped) # '14124' maxrss # > # '52080' ixrss I tried looking in src/sys/kern/kern_resource.c but I didn't find anything that told me the units. My inkling is the documentation is WRONG. ------------------------------------------------------------------------ Philip M. Gollucci (pgollucci@p6m7g8.com) 323.219.4708 Consultant / http://p6m7g8.net/Resume/resume.shtml Senior Software Engineer - TicketMaster - http://ticketmaster.com 1024D/A79997FA F357 0FDD 2301 6296 690F 6A47 D55A 7172 A799 97F "In all that I've done wrong I know I must have done something right to deserve a hug every morning and butterfly kisses at night."
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