lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Sat, 19 Aug 2006 11:53:38 -0700 From: mbligh <mbligh@...igh.org> To: Andrew Morton <akpm@...l.org> Cc: Ingo Molnar <mingo@...e.hu>, Mike Galbraith <efault@....de>, linux-kernel@...r.kernel.org Subject: Re: [Bugme-new] [Bug 7027] New: CD Ripping speeds slow with 2.6.17 Andrew Morton wrote: > On Sat, 19 Aug 2006 11:00:22 -0700 > bugme-daemon@...zilla.kernel.org wrote: > >> http://bugzilla.kernel.org/show_bug.cgi?id=7027 >> >> Summary: CD Ripping speeds slow with 2.6.17 >> Kernel Version: 2.6.17 >> Status: NEW >> Severity: normal >> Owner: bzolnier@...il.com >> Submitter: brnewber@...il.com >> >> >> Most recent kernel where this bug did not occur: 2.6.16 >> Distribution: Gentoo >> Hardware Environment: ASUS K8V mobo, AMD64 2200, 1GB RAM >> Software Environment: Gentoo >> Problem Description: Ever since 2.6.17 my cd ripping speeds with one particular >> CD ripper/encoder (namely the one I wrote) have been slow. >> >> Using git bisect I tracked it down to this patch.. >> >> 9430d58e34ec3861e1ca72f8e49105b227aad327 is first bad commit >> commit 9430d58e34ec3861e1ca72f8e49105b227aad327 >> Author: Mike Galbraith <efault@....de> >> Date: Wed Mar 22 00:07:33 2006 -0800 >> >> [PATCH] sched: remove sleep_avg multiplier >> >> Remove the sleep_avg multiplier. This multiplier was necessary back when >> we had 10 seconds of dynamic range in sleep_avg, but now that we only have >> one second, it causes that one second to be compressed down to 100ms in >> some cases. This is particularly noticeable when compiling a kernel in a >> slow NFS mount, and I believe it to be a very likely candidate for other >> recently reported network related interactivity problems. >> >> In testing, I can detect no negative impact of this removal. >> >> Signed-off-by: Mike Galbraith <efault@....de> >> Acked-by: Ingo Molnar <mingo@...e.hu> >> Signed-off-by: Andrew Morton <akpm@...l.org> >> Signed-off-by: Linus Torvalds <torvalds@...l.org> >> >> :040000 040000 28d2d8f53ab7b5dd89e846f2dcc107ce88cb695f 780a13c0f8ba5465db79c668 >> >> I'm honestly not sure if my application is doing something it shouldn't or if >> this is a legitimate kernel bug. Being totally at a loss I'm filing it here.I >> just know that before the above patch I was ripping at about speeds of 9.0x and >> now I rip at 1.2x. >> > > sched problems... > > Martin, this might be the source of your `dvdrip' woes? > Nope, was an older kernel than that, and oddly doesn't always seem to happen. I'll try to get that box upgraded, and try to reproduce it again. - 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/
Powered by blists - more mailing lists