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- Subject: vinum performance
- From: l.ertl at univie.ac.at (Lukas Ertl)
- Date: Wed Apr 2 00:25:01 2003
On Wed, 2 Apr 2003, Greg 'groggy' Lehey wrote:
> > I've done some rawio benchmarks with different process counts (1, 2, 4, 8,
> > 16, 32 and 64). The results are at
> > <http://mailbox.univie.ac.at/~le/rawio.html>.
> How does this compare to the raw disk?
Oops, sorry, I've forgotten to include them on the page. They are on there
Raw disk performance is indeed worse than RAID0/RAID5. Also interesting is
that the sequential read performance drops significantly in all cases when
going from 8 to 16 processes. Probably the bus is filled up then.
Lukas Ertl eMail: l_(_dot_)_ertl_(_at_)_univie_(_dot_)_ac_(_dot_)_at
UNIX-Systemadministrator Tel.: (+43 1) 4277-14073
Zentraler Informatikdienst (ZID) Fax.: (+43 1) 4277-9140
der Universit?t Wien http://mailbox.univie.ac.at/~le/