Andargor wrote:
--- Max Waterman
<davidmaxwaterman+gmane@xxxxxxxxxxxxxx> wrote:
Of course, bonnie++ only works on mounted devices,
but gives me
reasonable (but not great) numbers (130MB/s) which
don't seem to vary
too much with the kernel version.
Out of curiosity, have you compared bonnie++ results
with and without -f (fast)?
Nope. Just used default options (as well as the '-u' and
'-d' options, of course).
I've found that it seems to report x2 read throughput
without -f. Perhaps it "warms up" the drive with
putc() and getc(), allowing the kernel and/or cache to
do its job?
Hrm.
I haven't found a benchmark that is 100%
reliable/comparable. Of course, it all depends how the
drive is used in production, which may have little
correlation with the benchmarks...
Indeed.
Do you think that if it is configured for the best possible
read performance, then that would be it's worst possible
write performance?
I was hoping that having it configured for good read perf.
would mean it was pretty good for write too....
Max.
Andargor
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