From 7d4c444374d53e54ce197138df64bf40c1fb05a3 Mon Sep 17 00:00:00 2001 From: Alexander Motin Date: Tue, 23 Feb 2021 10:58:56 -0500 Subject: [PATCH] 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 --- sys/cam/ctl/ctl_backend_block.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/cam/ctl/ctl_backend_block.c b/sys/cam/ctl/ctl_backend_block.c index 7ec8e32f733..f50e47a2a6c 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, -- 2.45.0