Date: Tue, 05 Jun 2018 20:53:51 -0700 From: Cy Schubert <Cy.Schubert@cschubert.com> To: Matt Macy <mmacy@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r334701 - in head: lib/libpmc share/examples/hwpmc sys/dev/hwpmc sys/sys usr.sbin/pmc usr.sbin/pmcstat Message-ID: <201806060353.w563rpg1070888@slippy.cwsent.com> In-Reply-To: Message from Matt Macy <mmacy@FreeBSD.org> of "Wed, 06 Jun 2018 02:48:09 -0000." <201806060248.w562m9tB083134@repo.freebsd.org>
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In message <201806060248.w562m9tB083134@repo.freebsd.org>, Matt Macy writes: > Author: mmacy > Date: Wed Jun 6 02:48:09 2018 > New Revision: 334701 > URL: https://svnweb.freebsd.org/changeset/base/334701 > > Log: > hwpmc: add summary command and further metadata extensions > > metadata changes: > - log pmc sample rate with pmcallocate > - log proc flags with thread / process logging > to identify user vs kernel threads > > fixes: > - use log cpuid to translate event id to event name > > Implement rudimentary summary command to track sample > counts by thread and process name within a pmc log. > > % make -j4 buildkernel >& /dev/null & > % sudo pmcstat -S unhalted_core_cycles -S llc-misses -O foo sleep 15 > % pmc summary foo > cpu_clk_unhalted.thread_p_any: > idle: 138108207162 > clang-6.0: 105336158004 > sh: 72340108510 > make: 8642012963 > kernel: 7754011631 > longest_lat_cache.miss: > clang-6.0: 87502625 > sh: 40901227 > make: 5500165 > kernel: 3300099 > awk: 2000060 > > % pmc summary -f ~/foo > idx: 278 name: cpu_clk_unhalted.thread_p_any rate: 2000003 > idle: 69054 > clang-6.0: 52668 > sh: 36170 > make: 4321 > kernel: 3877 > hwpmc: proc(7445): 3319 > awk: 1289 > xargs: 357 > rand_harvestq: 181 > mtree: 102 > intr: 53 > zfskern: 31 > usb: 7 > pagedaemon: 4 > ntpd: 3 > syslogd: 1 > acpi_thermal: 1 > logger: 1 > syncer: 1 > snmptrapd: 1 > sleep: 1 > idx: 17 name: longest_lat_cache.miss rate: 100003 > clang-6.0: 875 > sh: 409 > make: 55 > kernel: 33 > awk: 20 > hwpmc: proc(7445): 14 > xargs: 9 > idle: 8 > intr: 3 > zfskern: 2 Hi Matt, I'm not sure if this is due to this commit or one of your others but it's broken the build. Sorry I can't do any more analysis but I need to get dinner on the table. -- Cheers, Cy Schubert <Cy.Schubert@cschubert.com> FreeBSD UNIX: <cy@FreeBSD.org> Web: http://www.FreeBSD.org The need of the many outweighs the greed of the few.
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