Date: Tue, 3 Oct 2006 11:27:46 -0400 From: Nick Evans <nevans@talkpoint.com> To: Divacky Roman <xdivac02@stud.fit.vutbr.cz> Cc: Mike Jakubik <mikej@rogers.com>, performance@freebsd.org, Jan Zacharias <fbsd-performance@graphics.cs.uni-sb.de> Subject: Re: Samba Performance problem Message-ID: <20061003112746.58ce03b3@pleiades.nextvenue.com> In-Reply-To: <20061003061949.GA65231@stud.fit.vutbr.cz> References: <3131aa530609290721o267d55bakff4e801ef4000675@mail.gmail.com> <451D4630.7040902@rogers.com> <op.tgnermsov366f6@bofh.cs.uni-sb.de> <451D4F07.7020108@rogers.com> <20061002102806.7addbcdf@pleiades.nextvenue.com> <4521227F.6040801@rogers.com> <20061002124241.64891173@pleiades.nextvenue.com> <20061003061949.GA65231@stud.fit.vutbr.cz>
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On Tue, 3 Oct 2006 08:19:49 +0200 Divacky Roman <xdivac02@stud.fit.vutbr.cz> wrote: > On Mon, Oct 02, 2006 at 12:42:41PM -0400, Nick Evans wrote: > > On Mon, 02 Oct 2006 10:30:23 -0400 > > Mike Jakubik <mikej@rogers.com> wrote: > > > > > Nick Evans wrote: > > > > Mike Jakubik <mikej@rogers.com> wrote: > > > > > > > >> Quite possibly, just as MySQL has been written with Linux primarily > > > >> in mind. > > > > > > > > It should be possible to profile smbd and see where the bottleneck > > > > is, no? Has anyone tried it? > > > > > > > > > > > > > It should be, but i don't believe anyone has tried yet. > > > > > > > Does anyone know how to get gprof to set the gmon.out file with a pid > > number in the filename? It's kind of hard to get output of the pid that > > controls a file transfer without it. Everything I've found via Google is > > not working so far. > > I'd start with plain ktrace and look in the trace to check for 'suspicious > things'. It might be something trivial like calling gettimeofday() way too > often as it was with mysql.... Done. I can provide the tracefile if anyone is interested.
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