diff options
| author | Tom Caputi <[email protected]> | 2018-02-05 19:57:53 -0500 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2018-02-05 16:57:53 -0800 |
| commit | 2b84817f66468da11d5c4373602a0044af46b572 (patch) | |
| tree | 92a7a4b2eae1e34b18ebafd15f20b03b79fcc793 /module | |
| parent | 60b82074968e8503bedf35bf2d3e975a1867177e (diff) | |
Adjust ARC prefetch tunables to match docs
Currently, the ARC exposes 2 tunables (zfs_arc_min_prefetch_ms
and zfs_arc_min_prescient_prefetch_ms) which are documented
to be specified in milliseconds. However, the code actually
uses the values as though they were in seconds. This patch
adjusts the code to match the names and documentation of the
tunables.
Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed-by: Giuseppe Di Natale <[email protected]>
Reviewed by: George Melikov <[email protected]>
Signed-off-by: Tom Caputi <[email protected]>
Closes #7126
Diffstat (limited to 'module')
| -rw-r--r-- | module/zfs/arc.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/module/zfs/arc.c b/module/zfs/arc.c index 2f3fe9771..4fffc2380 100644 --- a/module/zfs/arc.c +++ b/module/zfs/arc.c @@ -3845,7 +3845,8 @@ arc_evict_hdr(arc_buf_hdr_t *hdr, kmutex_t *hash_lock) /* prefetch buffers have a minimum lifespan */ if (HDR_IO_IN_PROGRESS(hdr) || ((hdr->b_flags & (ARC_FLAG_PREFETCH | ARC_FLAG_INDIRECT)) && - ddi_get_lbolt() - hdr->b_l1hdr.b_arc_access < min_lifetime * hz)) { + ddi_get_lbolt() - hdr->b_l1hdr.b_arc_access < + MSEC_TO_TICK(min_lifetime))) { ARCSTAT_BUMP(arcstat_evict_skip); return (bytes_evicted); } @@ -7470,9 +7471,8 @@ arc_init(void) cv_init(&arc_reclaim_thread_cv, NULL, CV_DEFAULT, NULL); cv_init(&arc_reclaim_waiters_cv, NULL, CV_DEFAULT, NULL); - /* Convert seconds to clock ticks */ - arc_min_prefetch_ms = 1; - arc_min_prescient_prefetch_ms = 6; + arc_min_prefetch_ms = 1000; + arc_min_prescient_prefetch_ms = 6000; #ifdef _KERNEL /* |