From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: benh performance problem From: Benjamin Herrenschmidt To: Mikolaj Krzewicki Cc: linuxppc-dev list In-Reply-To: <401FE138.8080807@lycos.nl> References: <401FE138.8080807@lycos.nl> Content-Type: text/plain Message-Id: <1075847083.17327.31.camel@gaston> Mime-Version: 1.0 Date: Wed, 04 Feb 2004 09:24:44 +1100 Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: On Wed, 2004-02-04 at 04:58, Mikolaj Krzewicki wrote: > hi all, > starting 2.6.0-test9-benh3 i noticed an increased system overhead on my > ibook 500. Each process eats much more cpu time than in 2.4 or even > vanilla 2.6. > gkrellm takes 1% instead of 0.1, xmms 5% instead of ~1% and so on. > I benchmarked the lot with octave and it indeed runs ~10% slower on the > benh kernels. > I would use vanilla 2.6.1 but it won't sleep/wake correctly (at all). > All pre-2.6.0-test9-benh3 kernels worked fast but would't sleep/wake either. > I tried to isolate the patch responsible but failed. > Has anybody come across similar behaviour? > greetings, M I switched to HZ=1000, the userland procps utilities (like ps and top) tend to not properly deal with that, at least earlier versions, afaik. I suspect it's just display crap. Alos, you can find a more recent kernel than that :) My bk tree is currently at 2.6.2-rc3-ben1 Ben. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/