Date: Tue, 20 May 2014 16:37:38 +0000 From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: Slawa Olhovchenkov <slw@zxy.spb.ru> Cc: "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "src-committers@freebsd.org" <src-committers@freebsd.org> Subject: Re: svn commit: r265792 - head/sys/kern Message-ID: <52888028-FF0D-44A1-9395-788130B83F16@lists.zabbadoz.net> In-Reply-To: <20140520162657.GG3327@zxy.spb.ru> References: <201405100053.s4A0rbF9080571@svn.freebsd.org> <20140511083114.GA53503@zxy.spb.ru> <CAJ-Vmo=x-JkHSVDT4REWQ_g=vb45T%2BTfrpZ8bc28NNbPd-ZYsg@mail.gmail.com> <20140520154113.GA23318@zxy.spb.ru> <CAJ-Vmonby1MVuuJnWoXcPh1cTE1q0SQEQhfL_ESzoDEWHtKcCw@mail.gmail.com> <20140520162657.GG3327@zxy.spb.ru>
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On 20 May 2014, at 16:26 , Slawa Olhovchenkov <slw@zxy.spb.ru> wrote: > On Tue, May 20, 2014 at 09:04:25AM -0700, Adrian Chadd wrote: >=20 >> On 20 May 2014 08:41, Slawa Olhovchenkov <slw@zxy.spb.ru> wrote: >>=20 >>>> (But if you try it on 10.0 and it changes things, by all means let = me know.) >>>=20 >>> I am try on 10.0, but not sure about significant improvement (may be >>> 10%). >>>=20 >>> For current CPU (E5-2650 v2 @ 2.60GHz) hwpmc don't working (1. after >>> collect some data `pmcstat -R sample.out -G out.txt` don't decode = any; >>> 2. kldunload hwpmc do kernel crash) and I can't collect detailed >>> profile information. >>=20 >> Yup. I'm starting to get really ticked off at how pmc logging on >> multi-core devices just "stops" after a while. I'll talk with other >> pmc people and see if we can figure out what the heck is going on. :( >=20 > pmc work on E5-2620 @ 2.00GHz (NOT E5 _v2_) I am looking into E5-2643 v2 issues on HEAD currently. Just in case this will help anyone. =97=20 Bjoern A. Zeeb "Come on. Learn, goddamn it.", WarGames, 1983
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