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zil: Add some more statistics.

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In addition to a number of actual log bytes written, account also a
total written bytes including padding and total allocated bytes (bytes
<= write <= alloc).  It should allow to monitor zil traffic and space
efficiency.

Add dtrace probe for zil block size selection.

Make zilstat report more information and fit it into less width.

Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:  Alexander Motin <mav@FreeBSD.org>
Sponsored by:   iXsystems, Inc.
Closes #14863
This commit is contained in:
Alexander Motin
2023-05-25 16:51:53 -04:00
committed by GitHub
parent f63811f072
commit b6fbe61fa6
6 changed files with 213 additions and 52 deletions
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tests/zfs-tests/tests/functional/cli_user/misc/zilstat_001_pos.ksh
+1 -1
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@@ -25,7 +25,7 @@
is_freebsd && ! python3 -c 'import sysctl' 2>/dev/null && log_unsupported "python3 sysctl module missing"
set -A args "" "-s \",\"" "-v" \
"-f time,zcwc,zimnb,zimsb"
"-f time,cwc,imnb,imsb"
log_assert "zilstat generates output and doesn't return an error code"