UNEXPECTED SOFT UPDATE INCONSISTENCY; RUN fsck MANUALLY
andrew at modulus.org
Tue Sep 30 04:20:51 UTC 2008
Dan Nelson wrote:
> That'd be handy, but at least on my system the data prefetcher isn't
> really called often enough to make a difference either way (assuming
> the counts are accurate). Metadata prefetch is a big win, however.
arcstats.prefetch_data_hits: 4538242 (13%)
arcstats.prefetch_metadata_hits: 593799808 (96%)
You are much luckier than me. For obvious reasons, I would like to
completely disable data prefetch but leave on metadata prefetch.
I believe it would speed up the filesystem plus save RAM (less wasted
use of ARC). But especially desktop systems would not need to waste
space on such aggressive prefetching.
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