diff options
Diffstat (limited to 'module/zfs/spa_stats.c')
| -rw-r--r-- | module/zfs/spa_stats.c | 50 |
1 files changed, 49 insertions, 1 deletions
diff --git a/module/zfs/spa_stats.c b/module/zfs/spa_stats.c index c3d1c3b95..20d7dc9d1 100644 --- a/module/zfs/spa_stats.c +++ b/module/zfs/spa_stats.c @@ -474,7 +474,7 @@ spa_txg_history_set(spa_t *spa, uint64_t txg, txg_state_t completed_state, /* * Set txg IO stats. */ -int +static int spa_txg_history_set_io(spa_t *spa, uint64_t txg, uint64_t nread, uint64_t nwritten, uint64_t reads, uint64_t writes, uint64_t ndirty) { @@ -503,6 +503,54 @@ spa_txg_history_set_io(spa_t *spa, uint64_t txg, uint64_t nread, return (error); } +txg_stat_t * +spa_txg_history_init_io(spa_t *spa, uint64_t txg, dsl_pool_t *dp) +{ + txg_stat_t *ts; + + if (zfs_txg_history == 0) + return (NULL); + + ts = kmem_alloc(sizeof (txg_stat_t), KM_SLEEP); + + spa_config_enter(spa, SCL_ALL, FTAG, RW_READER); + vdev_get_stats(spa->spa_root_vdev, &ts->vs1); + spa_config_exit(spa, SCL_ALL, FTAG); + + ts->txg = txg; + ts->ndirty = dp->dp_dirty_pertxg[txg & TXG_MASK]; + + spa_txg_history_set(spa, txg, TXG_STATE_WAIT_FOR_SYNC, gethrtime()); + + return (ts); +} + +void +spa_txg_history_fini_io(spa_t *spa, txg_stat_t *ts) +{ + if (ts == NULL) + return; + + if (zfs_txg_history == 0) { + kmem_free(ts, sizeof (txg_stat_t)); + return; + } + + spa_config_enter(spa, SCL_ALL, FTAG, RW_READER); + vdev_get_stats(spa->spa_root_vdev, &ts->vs2); + spa_config_exit(spa, SCL_ALL, FTAG); + + spa_txg_history_set(spa, ts->txg, TXG_STATE_SYNCED, gethrtime()); + spa_txg_history_set_io(spa, ts->txg, + ts->vs2.vs_bytes[ZIO_TYPE_READ] - ts->vs1.vs_bytes[ZIO_TYPE_READ], + ts->vs2.vs_bytes[ZIO_TYPE_WRITE] - ts->vs1.vs_bytes[ZIO_TYPE_WRITE], + ts->vs2.vs_ops[ZIO_TYPE_READ] - ts->vs1.vs_ops[ZIO_TYPE_READ], + ts->vs2.vs_ops[ZIO_TYPE_WRITE] - ts->vs1.vs_ops[ZIO_TYPE_WRITE], + ts->ndirty); + + kmem_free(ts, sizeof (txg_stat_t)); +} + /* * ========================================================================== * SPA TX Assign Histogram Routines |