Date: Thu, 4 Oct 2001 18:40:50 +0200 (CEST) From: Heiko Schaefer <hschaefer@fto.de> To: Mark Vojkovich <mvojkovich@nvidia.com> Cc: <xine-user@lists.sourceforge.net>, <xine-devel@lists.sourceforge.net>, <multimedia@freebsd.org> Subject: xine performance on freebsd. was: Re: [xine-user] Re: [Xpert]XvShm slower on freebsd than on line Message-ID: <20011004183557.R50599-100000@daneel.foundation.hs> In-Reply-To: <Pine.LNX.4.21.0109121246460.6247-100000@dhcp-198-206.nvidia.com>
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Hey Mark, hey everyone, > > Subject: Re: [xine-user] xine on freebsd? > > > > Hi Jason, > > > > On Wed, 12 Sep 2001, Jason Andresen wrote: > > > > > > even when using XvShm to display the video data xfree86 uses significantly > > > > more cpu power on freebsd than on linux (~15% on freebsd compared to ~1-3% > > > > on linux) which further indicates there's something wrong here. > > > > > > > > Comments, hints, ideas very welcome, > > Most likely an MTRR issue. An easy test is: > > x11perf -shmput500 > > On something like a BX chipset with write combining you should get > in the vicinity of 150 Megabytes/sec througput (ie. roughly 150 rects > per second in 32bpp, 300 in 16bpp) on either the "nv" or "mga" drivers > that come with XFree86. x11perf gives me practically the same results on debian gnu/linux and freebsd (~114/sec with 24bpp and ~210/sec with 16bpp). by now it seems that the performance problems of xine on freebsd seem to come only from the threads-implementation. at least if Xv performance is really the same. i've tried to check and make sure that mtrr is configured right on freebsd. did someting like "memcontrol set -b <base-address> -l <length> write-combine" and hopefully used the right address and length values. but i didn't observe any change in performance from that. somehow i still hope that one day xine will be as performant on freebsd as it is on linux. any input is appreciated. Heiko To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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