diff options
| author | Alek P <[email protected]> | 2017-09-29 15:58:52 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2017-09-29 15:58:52 -0700 |
| commit | 01ff0d7540b21c461c19b90b1e715df26cba3ff2 (patch) | |
| tree | 72ba39c82ee2a232b878d9edf51bb2812fbe467f | |
| parent | e71cade67d48495db46fb6eed29b88b895bcb2d8 (diff) | |
Update the default for zfs_txg_history
It's often useful to have access to txg history for debugging
purposes. This patch changes the default from 0 to 100 TXGs
worth of history preserved.
Reviewed by: Matthew Ahrens <[email protected]>
Reviewed-by: Giuseppe Di Natale <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed by: Richard Elling <[email protected]>
Reviewed by: Prakash Surya <[email protected]>
Reviewed-by: George Melikov <[email protected]>
Signed-off-by: Alek Pinchuk <[email protected]>
Closes #6691
| -rw-r--r-- | man/man5/zfs-module-parameters.5 | 4 | ||||
| -rw-r--r-- | module/zfs/spa_stats.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5 index 6e04b4977..19ecde4f4 100644 --- a/man/man5/zfs-module-parameters.5 +++ b/man/man5/zfs-module-parameters.5 @@ -12,7 +12,7 @@ .\" CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your .\" own identifying information: .\" Portions Copyright [yyyy] [name of copyright owner] -.TH ZFS-MODULE-PARAMETERS 5 "Nov 16, 2013" +.TH ZFS-MODULE-PARAMETERS 5 "Sept 28, 2017" .SH NAME zfs\-module\-parameters \- ZFS module parameters .SH DESCRIPTION @@ -1766,7 +1766,7 @@ Default value: \fB32\fR. Historical statistics for the last N txgs will be available in \fB/proc/spl/kstat/zfs/<pool>/txgs\fR .sp -Default value: \fB0\fR. +Default value: \fB100\fR. .RE .sp diff --git a/module/zfs/spa_stats.c b/module/zfs/spa_stats.c index 8c4dba29e..3eeb83a50 100644 --- a/module/zfs/spa_stats.c +++ b/module/zfs/spa_stats.c @@ -34,9 +34,9 @@ int zfs_read_history = 0; int zfs_read_history_hits = 0; /* - * Keeps stats on the last N txgs, disabled by default. + * Keeps stats on the last 100 txgs by default. */ -int zfs_txg_history = 0; +int zfs_txg_history = 100; /* * Keeps stats on the last N MMP updates, disabled by default. |