Re: Vinum & U320 SCSI, slower than UDMA100 IDE ?

2003-12-03 Thread Sander Smeenk
Quoting Greg 'groggy' Lehey ([EMAIL PROTECTED]): > > But still, I doubt if bonnie++ is a good test, and I have a hard time > > interpreting the results. I can publish the results somewhere, in a > > while. > Yes, bonnie++ tests the entire system, not just the disk. > Try benchmarks/rawio. That mi

Re: Vinum & U320 SCSI, slower than UDMA100 IDE ?

2003-12-02 Thread Greg 'groggy' Lehey
On Tuesday, 2 December 2003 at 10:26:08 +0100, Sander Smeenk wrote: > Quoting Greg 'groggy' Lehey ([EMAIL PROTECTED]): plex org striped 3841k >> >> You should choose a stripe size which is a multiple of the block size >> (presumably 16 kB). Not doing so will have a minor performance >> impa

Re: Vinum & U320 SCSI, slower than UDMA100 IDE ?

2003-12-02 Thread Sander Smeenk
Quoting Greg 'groggy' Lehey ([EMAIL PROTECTED]): > >Then I did a read test, like this: > >>date;find . -type f|while read FILE;do cat "$FILE" > > >>/dev/null;done;date > >I know it's not the most sophisticated test, but at least it shows that > >on the IDE disk, this 'test' took 24 seconds to comp

Re: Vinum & U320 SCSI, slower than UDMA100 IDE ?

2003-12-01 Thread Greg 'groggy' Lehey
On Thursday, 27 November 2003 at 13:44:35 +0100, Sander Smeenk wrote: > Hi, > > I recently installed a Dual P4 2.8ghz with FBSD 4.9 and made a RAID10 > array of the 4 scsi disks available. The idea was that this would be > faster to read from than normal IDE disks. As a test I took the > company's

Re: Vinum & U320 SCSI, slower than UDMA100 IDE ?

2003-12-01 Thread Sander Smeenk
Quoting Chad Leigh -- Shire.Net LLC ([EMAIL PROTECTED]): > >I would understand if the RAID10 array was as fast as IDE, or faster, > >but i'm a bit amazed by these results. The RAID10 array was built on 4x > >36.7gb Ultra320 SCSI disks, connected to an Adaptec 39320D Ultra320 > >SCSI adapter, which

Re: Vinum & U320 SCSI, slower than UDMA100 IDE ?

2003-12-01 Thread Chad Leigh -- Shire.Net LLC
On Nov 27, 2003, at 5:44 AM, Sander Smeenk wrote: Hi, I recently installed a Dual P4 2.8ghz with FBSD 4.9 and made a RAID10 array of the 4 scsi disks available. The idea was that this would be faster to read from than normal IDE disks. As a test I took the company's web/ directory, which is 1.6gb

Vinum & U320 SCSI, slower than UDMA100 IDE ?

2003-11-27 Thread Sander Smeenk
Hi, I recently installed a Dual P4 2.8ghz with FBSD 4.9 and made a RAID10 array of the 4 scsi disks available. The idea was that this would be faster to read from than normal IDE disks. As a test I took the company's web/ directory, which is 1.6gb in size and has 22082 files. I extracted this web