I already pointed this out :-). Its not only write caching (dev null doesnt
write at all)
I think its read caching (read ahead)
Cheers
Markus
"Mike A. Harris" wrote:
> On Mon, 9 Oct 2000, blizbor wrote:
>
> >> On Mon, 9 Oct 2000, Andre Tomt wrote:
> >>
> >> The fastest ATA drives out that are not public yet are in 39-42mB/s.
> >> Also SCSI can not sustain rates much better than maybe 60mB/s.
> >
> >Andre, how are you benchmarking drives ?
> >
> >In context you wrote, I've got rather curious results (maybe due to
> >daulty measurement routines in tar).
> >I've made
> >tar clvf /dev/null --totals
> >and got as follows:
> >
> >for ReiserFS: 53MB/s
> >for ext2fs 27-28 MB/s
>
> 2 words: write caching
>
> ----------------------------------------------------------------------
> Mike A. Harris - Linux advocate - Open source advocate
> Computer Consultant - Capslock Consulting
> Copyright 2000 all rights reserved
> ----------------------------------------------------------------------
>
> #[Mike A. Harris bash tip #3 - how to disable core dumps]
> # Put the following at the bottom of your ~/.bash_profile
> ulimit -c 0
>
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