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os/bluestore/BlueFS: increase size threshold before we flush (and generate io)

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Having this too high means you might be more bursty. In practice,
though, the commit path is doing explicit syncs on small chunks
anyway.  And compaction work should probably stay reasonably chunky.

Signed-off-by: Sage Weil <sage@redhat.com>
This commit is contained in:
Sage Weil 2017-01-20 13:59:56 -05:00
parent 7a53d4389e
commit c776710a8e
1 changed files with 1 additions and 1 deletions

2
src/common/config_opts.h
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@ -988,7 +988,7 @@ OPTION(bluefs_min_log_runway, OPT_U64, 1048576) // alloc when we get this low
OPTION(bluefs_max_log_runway, OPT_U64, 4194304) // alloc this much at a time
OPTION(bluefs_log_compact_min_ratio, OPT_FLOAT, 5.0) // before we consider
OPTION(bluefs_log_compact_min_size, OPT_U64, 16*1048576) // before we consider
OPTION(bluefs_min_flush_size, OPT_U64, 65536) // ignore flush until its this big
OPTION(bluefs_min_flush_size, OPT_U64, 524288) // ignore flush until its this big
OPTION(bluefs_compact_log_sync, OPT_BOOL, false) // sync or async log compaction?
OPTION(bluefs_buffered_io, OPT_BOOL, false)
OPTION(bluefs_allocator, OPT_STR, "bitmap") // stupid | bitmap