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authorFeng Sun <[email protected]>2018-07-26 00:52:27 +0800
committerBrian Behlendorf <[email protected]>2018-07-25 09:52:27 -0700
commit750e1f88d386b752283de7ed763af2a189b73677 (patch)
tree5656475f18f12c9db61fac294797ffd7780298f2 /module/zfs/dmu.c
parent473c976a0c4da84d8b49edaaf3d88a716d8dde2c (diff)
Introduce kstat dmu_tx_dirty_frees_delay
It is helpful to tune zfs_per_txg_dirty_frees_percent for commit 539d33c7(OpenZFS 6569 - large file delete can starve out write ops). Reviewed-by: Brian Behlendorf <[email protected]> Reviewed by: Richard Elling <[email protected]> Signed-off-by: Feng Sun <[email protected]> Closes #7718
Diffstat (limited to 'module/zfs/dmu.c')
-rw-r--r--module/zfs/dmu.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/module/zfs/dmu.c b/module/zfs/dmu.c
index 0d2f03e22..9d00098c8 100644
--- a/module/zfs/dmu.c
+++ b/module/zfs/dmu.c
@@ -826,6 +826,7 @@ dmu_free_long_range_impl(objset_t *os, dnode_t *dn, uint64_t offset,
*/
if (dirty_frees_threshold != 0 &&
long_free_dirty_all_txgs >= dirty_frees_threshold) {
+ DMU_TX_STAT_BUMP(dmu_tx_dirty_frees_delay);
txg_wait_open(dp, 0);
continue;
}