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Date: Sat, 12 Jul 2008 13:33:53 +0300 From: Török Edwin <edwintorok@...il.com> To: Arjan van de Ven <arjan@...radead.org> CC: Linus Torvalds <torvalds@...ux-foundation.org>, Ingo Molnar <mingo@...e.hu>, Roland McGrath <roland@...hat.com>, Thomas Gleixner <tglx@...utronix.de>, Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org, Elias Oltmanns <eo@...ensachen.de> Subject: Re: [PATCH] x86_64: fix delayed signals On 2008-07-12 01:53, Arjan van de Ven wrote: > On Fri, 11 Jul 2008 11:31:26 -0700 (PDT) > Linus Torvalds <torvalds@...ux-foundation.org> wrote: > > >> On Fri, 11 Jul 2008, Linus Torvalds wrote: >> >>> Btw, did any of the impacted people test -rc9? Edwin's report is >>> about -rc2 and -rc8, and one of the things we fixed since -rc8 is >>> that incorrect and unintentional nr_zones zeroing that effectively >>> disabled kswapd - and made everybody do synchronous memory freeing >>> when they wanted to allocate more memory.. That can play havoc with >>> any interactive stuff. >>> >> Hmm. Edwin's latencytop output includes this (ignoring the _very_ top >> entries that are all either CD-ROM media change tests or are >> interruptible pipe/select things) at the top: >> >> 21 10264428 915514 get_request_wait __make_request >> generic_make_request submit_bio xfs_submit_ioend_bio xfs_submit_ioend >> xfs_page_state_convert xfs_vm_writepage __writepage >> write_cache_pages generic_writepages xfs_vm_writepages >> > > > argh. well I guess this might be useful for this case, but normally > latencytop gives you much more humanly readable data... maybe Edwin > forgot to do "make install" :-( I forgot to use 'latencytop -d', I was running latencytop and when I've seen something interesting I did a 'cat /proc/latency_stats' instead of 'latencytop -d'. I'll try to use latencytop -d next time. Best regards, --Edwin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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