Messages in this thread | | | Date | Mon, 31 Jul 2006 16:21:28 -0700 | From | "Nate Diller" <> | Subject | Re: Solaris ZFS on Linux [Was: Re: the " 'official' point of view" expressed by kernelnewbies.org regarding reiser4 inclusion] |
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On 7/31/06, Matthias Andree <matthias.andree@gmx.de> wrote: > Adrian Ulrich wrote: > > > See also: http://spam.workaround.ch/dull/postmark.txt > > > > A quick'n'dirty ZFS-vs-UFS-vs-Reiser3-vs-Reiser4-vs-Ext3 'benchmark' > > Whatever Postmark does, this looks pretty besides the point.
why's that? postmark is one of the standard benchmarks...
> Are these actual transactions with the "D"urability guarantee? > 3000/s doesn't look too much like you're doing synchronous I/O (else > figures around 70/s perhaps 100/s would be more adequate), and cache > exercise is rather irrelevant for databases that manage real (=valuable) > data...
Data: 204.62 megabytes read (8.53 megabytes per second) 271.49 megabytes written (11.31 megabytes per second)
looks pretty I/O bound to me, 11.31 MB/s isn't exactly your latest DDR RAM bandwidth. as far as the synchronous I/O question, Reiser4 in this case acts more like a log-based FS. That allows it to "overlap" synchronous operations that are being submitted by multiple threads.
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