mfi driver performance too bad on LSI MegaRAID SAS 9260-8i
freebsd at omnilan.de
Sun Jul 31 16:51:54 UTC 2016
Bezüglich Jason Zhang's Nachricht vom 17.06.2016 09:16 (localtime):
> I am working on storage service based on FreeBSD. I look forward to a good result because many professional storage company use FreeBSD as its OS. But I am disappointed with the Bad performance. I tested the the performance of LSI MegaRAID 9260-8i and had the following bad result:
> 1. Test environment:
> (1) OS: FreeBSD 10.0 release
> (2) Memory: 16G
> (3) RAID adapter: LSI MegaRAID 9260-8i
> (4) Disks: 9 SAS hard drives (10000 rpm), performance is expected for each hard drive
Were the drives completely initialized?
I remember that at least one vendor had implemented read-past-write for
every sector when written first.
It was with 15k 3.5" spindles and I'm really not sure which vendor it
was, so I won't name any. But "slow init" had solved a similir problem
for me back then...
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