Richard Jones wrote:
>
> Richard Jones wrote:
> [...]
> > to reformat it. However, I'll get bonnie benchmarks
> > for the new array once it's finished initial
> > building. I've noticed that the RAID5.HOWTO has
> [...]
>
> I'm going to measure fsck and mount times exactly next ...
# time mount /dev/md0 /mnt/raid
0.00user 0.25system 0:10.99elapsed 2%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (94major+12minor)pagefaults 0swaps
[ That's 11 seconds ]
To measure fsck performance, since it took about 2 hours
to actually *fill* the drive to 11% full, I had to resort
to extrapolation. Here are my hard results.
% Disk full Data blocks Time
---------------------------------------------
5% 3881184 5m35s (335s)
7% 6015252 7m33s (453s)
11% 8961576 9m59s (599s)
The data consisted of numerous copies of /usr/doc from
RedHat, therefore it's a fairly representative mix of
small files.
Extrapolating using an *extremely dodgy* linear
approximation gives the following estimates:
50% 40m (2400s)
90% 66m40s (4000s)
Rich.
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Original message content Copyright © 1999 Richard Jones
