gvinum panic?
Ivan Voras
ivoras at fer.hr
Tue Nov 23 05:20:12 PST 2004
Lukas Ertl wrote:
> On Mon, 22 Nov 2004, Ivan Voras wrote:
>
>> I'm consistently getting a system panic, trap #12 in process g_event
>> when I try:
>
>
> Are you sure that kernel (modules) and userland are in sync?
Thanks, it looks like they've been unsynced for a while :(
It's ok now.
But, the performance is pretty bad (same with regular vinum). I tried
setting up graid3 class with same parameters, and got these results:
linear read (1024 MB file, blocks of 32768) ................. 38.5 MB/s
linear write (1024 MB file, blocks of 32768) ................ 16.8 MB/s
random read (1024 MB file, blocks of 32768) ................. 41.9 MB/s
random write (1024 MB file, blocks of 32768) ................ 3.4 MB/s
with raid5, gvinum or vinum, I get these:
linear read (1024 MB file, blocks of 32768) ................. 27.8 MB/s
linear write (1024 MB file, blocks of 32768) ................ 4.2 MB/s
random read (1024 MB file, blocks of 32768) ................. 44.2 MB/s
random write (1024 MB file, blocks of 32768) ................ 1.9 MB/s
(random reads are really random, no clustering or anything).
My setup is 2 IDE channels with three discs, so one is a slave (and
contains the parity disc in case of raid3). Do these numbers make sense?
I'll certainly go with raid3 as it is...
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