[Bug 290207] [ZFS] lowering "vfs.zfs.arc.max" to a low value causes kernel threads of "arc_evict" to use 91% CPU and disks to wait. System gets unresponsive...

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 31 Oct 2025 13:35:46 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=290207

--- Comment #16 from Nils Beyer <nbe@vkf-renzel.de> ---
(In reply to Mark Millard from comment #15)

I did that with "awk '$5 != 0'". Well, the resulting unified diff is
surprisingly small ;-)
---------------------------------- SNIP ---------------------------------- 
#  RES   ACT INACT LAUND WIRED REF SHD CM  TP PATH

--- vmstat.o.0before.stripped.txt       2025-10-31 14:31:49.301761000 +0100
+++ vmstat.o.1after.stripped.txt        2025-10-31 14:31:59.094711000 +0100
@@ -2,7 +2,7 @@
    11     0     0     0    11   3   0 WB  ph 
   200     0     0     0   200   3   0 WB  ph 
    66     0     0     0    66   1   0 WB  ph 
- 2368     0     0     0  2368   1   0 WB  ph 
+ 2376     0     0     0  2376   1   0 WB  ph 
    12     0     0     0    12   3   0 WB  ph 
     3     0     0     0     3   3   0 WB  ph 
     4     0     0     0     4   3   0 WB  ph 
---------------------------------- SNIP ----------------------------------

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