https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275594
--- Comment #2 from Seigo Tanimura <[email protected]> --- > Why did you change this parameter? In my test case, the ARC pruning process has the risk of hitting many non-ZFS vnodes. vfs.vnode.vnlru.max_free_per_call has hence been increased in the hope to reach the ZFS vnodes with the better chance within a single iteration. > USE_TMPFS="wrkdir data localbase" The directories under the really heavy load are covered by tmpfs(5). > What happens if you leave it at the default value? I started "poudriere bulk" about an hour ago with: - vfs.vnode.vnlru.max_free_per_call: 10000 (out-of-box) - vfs.zfs.arc.prune_interval: 0 (cancel the ARC pruning interval) The rest of the setup is the same as in the description. After about 50 minutes from the start, arc_prune started to hog the CPU up to 90 - 100%. The free_retry and free_giveup counters are increasing in the same pace as free_call. I will continue this build until the end, but with no hope for the recovery of arc_prune. -- You are receiving this mail because: You are the assignee for the bug.
