Re: [for-416 PATCH 1/3] bcache: writeback: collapse contiguous IO better

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Hey everyone,

These were previously sent and there was an extension discussion about
performance, finding that there was some slight regression on very large
extent workloads and significant performance improvement on smaller
extents.  This is a *huge* performance increase on my workload,
especially the behavior enabled in the #3 patch that allows dirty data
to be trimmed quickly during idle periods.

Reviewed-by tags would be appreciated so that these can be staged for 4.16.

I have additional changes coming in the next couple of days-- changes to
the closure code picked from kmo's bcachefs tree that both improve
performance and enhance correctness.  Just need a little more test and
to work on the commit comments some.

Thanks,

Mike
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