Messages in this thread | | | Subject | Re: ext3_ordered_writepage() questions | From | Mingming Cao <> | Date | Fri, 17 Mar 2006 15:23:08 -0800 |
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On Fri, 2006-03-17 at 14:38 -0800, Badari Pulavarty wrote: > On Fri, 2006-03-17 at 17:22 -0500, Stephen C. Tweedie wrote:
> > There is one other perspective to be aware of, though: the current > > behaviour means that by default ext3 generally starts flushing pending > > writeback data within 5 seconds of a write. Without that, we may end up > > accumulating a lot more dirty data in memory, shifting the task of write > > throttling from the filesystem to the VM. > > Hmm.. You got a point there. > > > > > That's not a problem per se, just a change of behaviour to keep in mind, > > as it could expose different corner cases in the performance of > > write-intensive workloads. > > > > --Stephen > > > > >
Current data=writeback mode already behaves like this, so the VM subsystem should be tested for a certain extent, isn't?
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