smb3: lower default deferred close timeout to address perf regression

Performance tests with large number of threads noted that the change
of the default closetimeo (deferred close timeout between when
close is done by application and when client has to send the close
to the server), to 5 seconds from 1 second, significantly degraded
perf in some cases like this (in the filebench example reported,
the stats show close requests on the wire taking twice as long,
and 50% regression in filebench perf). This is stil configurable
via mount parm closetimeo, but to be safe, decrease default back
to its previous value of 1 second.

Reported-by: Yin Fengwei <[email protected]>
Reported-by: kernel test robot <[email protected]>
Link: https://lore.kernel.org/lkml/[email protected]/
Fixes: 5efdd9122eff ("smb3: allow deferred close timeout to be configurable")
Cc: [email protected] # 6.0+
Tested-by: Yin Fengwei <[email protected]>
Reviewed-by: Paulo Alcantara (SUSE) <[email protected]>
Reviewed-by: Shyam Prasad N <[email protected]>
Signed-off-by: Steve French <[email protected]>

0 files changed, 0 insertions, 0 deletions