Date: Tue, 2 Mar 2021 00:43:14 GMT From: Alexander Motin <mav@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 2224a2872be1 - stable/13 - Bump CTL block backend threads from 14 to 32 per LUN. Message-ID: <202103020043.1220hE49086204@gitrepo.freebsd.org>
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The branch stable/13 has been updated by mav: URL: https://cgit.FreeBSD.org/src/commit/?id=2224a2872be189055ce5ff96700502a950bfd548 commit 2224a2872be189055ce5ff96700502a950bfd548 Author: Alexander Motin <mav@FreeBSD.org> AuthorDate: 2021-02-23 15:58:56 +0000 Commit: Alexander Motin <mav@FreeBSD.org> CommitDate: 2021-03-02 00:43:09 +0000 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) --- 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 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,
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