Date: Wed, 23 Jan 2008 13:34:50 +0200 From: Stefan Lambrev <stefan.lambrev@moneybookers.com> To: Kris Kennaway <kris@FreeBSD.org> Cc: freebsd-hackers@FreeBSD.org Subject: Re: gettimeofday() in hping Message-ID: <4797265A.3020409@moneybookers.com> In-Reply-To: <47965112.5020009@FreeBSD.org> References: <4795CC13.7080601@moneybookers.com> <868x2i3v8d.fsf@ds4.des.no> <864pd63v2h.fsf@ds4.des.no> <4795FE54.9090606@moneybookers.com> <86lk6i0vzk.fsf@ds4.des.no> <479605E2.6070709@moneybookers.com> <479621BE.2060907@FreeBSD.org> <4796357B.9020508@moneybookers.com> <47963911.4000002@FreeBSD.org> <47965072.7030700@moneybookers.com> <47965112.5020009@FreeBSD.org>
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Hi Kris, Kris Kennaway wrote: > Stefan Lambrev wrote: >> >> Kris Kennaway wrote: >>> Stefan Lambrev wrote: >>> >>>>> You should use hwpmc to verify where the application is really >>>>> spending time, since gettimeofday doesn't seem to account for it all. >>>> pmc: Unknown Intel CPU. >>>> module_register_init: MOD_LOAD (hwpmc, 0xffffffff8029906d, >>>> 0xffffffff8054c500) error 78 >>> >>> OK, this is the famous problem with modern CPUs that jkoshy has >>> declined to work around :( There are patches for this in perforce, see >>> >>> http://perforce.freebsd.org/changeView.cgi?CH=126189 I got hwpmc to compile (but only as module) hwpmc: TSC/1/0x20<REA> P6/2/0x1ff<INT,USR,SYS,EDG,THR,REA,WRI,INV,QUA> but when I try to use pmcstat I receive this error message: pmcstat: ERROR: Initialization of the pmc(3) library failed: Device not configured kldstat lists hwpmc.ko as loaded and I have options HWPMC_HOOKS in my kernel. Any idea what's go wrong? -- Best Wishes, Stefan Lambrev ICQ# 24134177
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