Date: Thu, 5 Mar 2020 19:43:43 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r358683 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <202003051943.025JhhW1037709@repo.freebsd.org>
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Author: mav Date: Thu Mar 5 19:43:43 2020 New Revision: 358683 URL: https://svnweb.freebsd.org/changeset/base/358683 Log: Remove vfs.zfs.top_maxinflight tunable/sysctl. It is dead since sorted scrub import at r334844. MFC after: 1 week Sponsored by: iXsystems, Inc. Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c Thu Mar 5 18:11:47 2020 (r358682) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c Thu Mar 5 19:43:43 2020 (r358683) @@ -137,12 +137,6 @@ extern int zfs_vdev_async_write_active_min_dirty_perce */ int zfs_scan_strict_mem_lim = B_FALSE; -/* - * Maximum number of parallelly executing I/Os per top-level vdev. - * Tune with care. Very high settings (hundreds) are known to trigger - * some firmware bugs and resets on certain SSDs. - */ -int zfs_top_maxinflight = 32; /* maximum I/Os per top-level */ unsigned int zfs_resilver_delay = 2; /* number of ticks to delay resilver -- 2 is a good number */ unsigned int zfs_scrub_delay = 4; /* number of ticks to delay scrub -- 4 is a good number */ unsigned int zfs_scan_idle = 50; /* idle window in clock ticks */ @@ -186,8 +180,6 @@ boolean_t zfs_no_scrub_io = B_FALSE; /* set to disable boolean_t zfs_no_scrub_prefetch = B_FALSE; /* set to disable scrub prefetch */ SYSCTL_DECL(_vfs_zfs); -SYSCTL_UINT(_vfs_zfs, OID_AUTO, top_maxinflight, CTLFLAG_RWTUN, - &zfs_top_maxinflight, 0, "Maximum I/Os per top-level vdev"); SYSCTL_UINT(_vfs_zfs, OID_AUTO, resilver_delay, CTLFLAG_RWTUN, &zfs_resilver_delay, 0, "Number of ticks to delay resilver"); SYSCTL_UINT(_vfs_zfs, OID_AUTO, scrub_delay, CTLFLAG_RWTUN, @@ -1538,7 +1530,6 @@ dsl_scan_prefetch_thread(void *arg) dsl_scan_t *scn = arg; spa_t *spa = scn->scn_dp->dp_spa; vdev_t *rvd = spa->spa_root_vdev; - uint64_t maxinflight = rvd->vdev_children * zfs_top_maxinflight; scan_prefetch_issue_ctx_t *spic; /* loop until we are told to stop */
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