diff options
| author | Brian Behlendorf <[email protected]> | 2012-01-20 10:58:57 -0800 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2012-02-27 08:59:10 -0800 |
| commit | 570827e129ed81e066e894530bbe24642f473154 (patch) | |
| tree | 90e9128a73735df10392a24280ade08031051b68 /module/zfs/txg.c | |
| parent | 13be560d89e9de63bdf63e8187af2ceb90cf094d (diff) | |
Add 'dmu_tx' kstats entry
Keep counters for the various reasons that a thread may end up
in txg_wait_open() waiting on a new txg. This can be useful
when attempting to determine why a particular workload is
under performing.
Signed-off-by: Brian Behlendorf <[email protected]>
Diffstat (limited to 'module/zfs/txg.c')
| -rw-r--r-- | module/zfs/txg.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/module/zfs/txg.c b/module/zfs/txg.c index d0d2b1716..6e64adf93 100644 --- a/module/zfs/txg.c +++ b/module/zfs/txg.c @@ -524,6 +524,8 @@ txg_delay(dsl_pool_t *dp, uint64_t txg, int ticks) (void) cv_timedwait(&tx->tx_quiesce_more_cv, &tx->tx_sync_lock, timeout); + DMU_TX_STAT_BUMP(dmu_tx_delay); + mutex_exit(&tx->tx_sync_lock); } |