Re: 2.5.44-[mm3, ac2] time to tar zxf kernel tarball compared forvarious

[Andrew Morton]

Benjamin LaHaise wrote:
> 
> On Wed, Oct 23, 2002 at 12:57:24PM -0700, Andrew Morton wrote:
> > Steven Cole wrote:
> > >
> > > ext3
> > > tar zxf linux-2.5.44.tar.gz     2.5.44-mm3      2.5.44-ac2
> > > user                            4.42            4.39
> > > system                          4.09            4.05
> > > elapsed                         00:53.17        00:34.05
> > > % CPU                           16              24
> >
> > The smaller fifo_batch setting hurts when there are competing
> > reads and writes on the same disk.
> 
> Is the ext2/3 allocation heuristic fix in yet?  That might swing things
> around again too.
> 

Only for ext2, only in -mm.  I havben't submitted the Orlov allocator
because Ted is playing with it.

ext3's five-second commit interval and limited journal size really
bite in this test.  We end up doing most of the writeback within
the measurement period rather than after it.