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680c790732
This gives a nice speed up...
The following test with 256 commections all looping with open/close
on the same inode (share root) is improved drastically:
smbtorture //127.0.0.1/m -Uroot%test smb2.bench.path-contention-shared \
--option='torture:bench_path=' \
--option="torture:timelimit=60" \
--option="torture:nprocs=256" \
--option="torture:qdepth=1"
From something like this:
open[num/s=11536,avslat=0.011450,minlat=0.000039,maxlat=0.052707]
close[num/s=11534,avslat=0.010878,minlat=0.000022,maxlat=0.052342]
(only this commit with the close part reverted) to:
open[num/s=12722,avslat=0.009548,minlat=0.000051,maxlat=0.054338]
close[num/s=12720,avslat=0.010701,minlat=0.000033,maxlat=0.054372]
(with both patches) to:
open[num/s=37680,avslat=0.003471,minlat=0.000040,maxlat=0.061411]
close[num/s=37678,avslat=0.003440,minlat=0.000022,maxlat=0.051536]
So we are finally perform similar like we did in Samba 4.12,
which resulted in:
open[num/s=36846,avslat=0.003574,minlat=0.000043,maxlat=0.020378]
close[num/s=36844,avslat=0.003552,minlat=0.000026,maxlat=0.020321]
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15125
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>