Messages in this thread | | | From | Con Kolivas <> | Subject | Re: [PATCH RFC] 1/2 central workspace for zlib | Date | Sat, 31 May 2003 18:22:21 +1000 |
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On Sat, 31 May 2003 17:56, Jörn Engel wrote: > CC List pruned a little. > > On Fri, 30 May 2003 23:55:05 -0700, David S. Miller wrote: > > From: Jörn Engel <joern@wohnheim.fh-wedel.de> > > > > How about preemption? zlib operations take their time, so at least on > > up, it makes sense to preempt them, when not in softirq context. Can > > this still be done lockless? > > > > You'll need to disable preemption. > > My gut feeling claims that this would hurt interactivity. Con, would > contest on a jffs2 (zlib compressed) filesystem be able to show > interactivity problems wrt zlib?
The only way I could think of was perhaps using a load on another disk (io_other which is in contest) that is using jffs2 when the contest baseline is running on a normal filesystem - this has shown very little differences between filesystems normally. Otherwise if everything in contest is run on jffs2 it would affect every layer and hard to be sure you had a control to compare with.
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