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author | Alexander Motin <mav@FreeBSD.org> | 2021-02-23 15:58:56 +0000 |
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committer | Alexander Motin <mav@FreeBSD.org> | 2021-03-02 00:43:09 +0000 |
commit | 2224a2872be189055ce5ff96700502a950bfd548 (patch) | |
tree | f3902f9291157db4b0ceae9a63daf4df546fcdf2 | |
parent | b96e66349ed80f2537777c0cc04266de1a3768b0 (diff) | |
download | src-2224a2872be189055ce5ff96700502a950bfd548.tar.gz src-2224a2872be189055ce5ff96700502a950bfd548.zip |
Bump CTL block backend threads from 14 to 32 per LUN.
This makes random read benchmarks look better on a wide ZFS pools.
I am not sure where the original value goes from, but it is there
for too long now.
MFC after: 1 week
(cherry picked from commit 7d4c444374d53e54ce197138df64bf40c1fb05a3)
-rw-r--r-- | sys/cam/ctl/ctl_backend_block.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/cam/ctl/ctl_backend_block.c b/sys/cam/ctl/ctl_backend_block.c index cd4fab766844..c4e5e0dcf26d 100644 --- a/sys/cam/ctl/ctl_backend_block.c +++ b/sys/cam/ctl/ctl_backend_block.c @@ -226,7 +226,7 @@ struct ctl_be_block_io { extern struct ctl_softc *control_softc; -static int cbb_num_threads = 14; +static int cbb_num_threads = 32; SYSCTL_NODE(_kern_cam_ctl, OID_AUTO, block, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "CAM Target Layer Block Backend"); SYSCTL_INT(_kern_cam_ctl_block, OID_AUTO, num_threads, CTLFLAG_RWTUN, |