On Monday, 2 June 2003 at 17:48:23 -0700, Jaye Mathisen wrote: > On Fri, May 30, 2003 at 07:48:45PM +0930, Greg 'groggy' Lehey wrote: >> On Friday, 30 May 2003 at 11:16:06 +0200, Per olof Ljungmark wrote: >>> Using Vinum on 4.7-RELEASE-p10, I wonder what can be done to optimize >>> performance. So far I am not impressed but perhaps I did not configure >>> Vinum optimal, grateful for any hints thanks. >> >> You haven't said what your problem is. It definitely depends on your >> application (which may simply be the way you measure it). >> >> FWIW, the stripe size should be a multiple of the file system block >> size. Yes, the man pages don't necessarily say that, but it's also >> not so important. > > Hmmm, I thought the consensus was to use a weird stripe size to avoid > getting all the inode/superblock stuff on 1 disk.
Correct, for some definition of "weird". > I seem to recall somebody saying somethingabout using stripe sizes > like 273k and such... Yes, I once said that. Then it occurred to me that many transfers are complete file system blocks. If you have a stripe size which isn't a multiple of the block size, you'll end up with more transfers split across two devices, which has a negative effect on performance. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers
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