diff options
| author | Alex Reece <[email protected]> | 2014-07-18 07:08:31 -0800 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2014-09-23 13:50:55 -0700 |
| commit | acbad6ff6768b0ccfb3c319e981ec211dcecc277 (patch) | |
| tree | 3a17414f6a30247ce3dcc0488da07e7905e8894a /include/sys/txg.h | |
| parent | 1f6f97f3049706aa7ca95636fd587ae5f3d531a9 (diff) | |
Illumos 4753 - increase number of outstanding async writes when sync task is waiting
Reviewed by: Matthew Ahrens <[email protected]>
Reviewed by: George Wilson <[email protected]>
Reviewed by: Adam Leventhal <[email protected]>
Reviewed by: Christopher Siden <[email protected]>
Reviewed by: Dan McDonald <[email protected]>
Approved by: Garrett D'Amore <[email protected]>
References:
https://www.illumos.org/issues/4753
https://github.com/illumos/illumos-gate/commit/73527f4
Comments by Matt Ahrens from the issue tracker:
When a sync task is waiting for a txg to complete, we should hurry
it along by increasing the number of outstanding async writes
(i.e. make vdev_queue_max_async_writes() return a larger number).
Initially we might just have a tunable for "minimum async writes
while a synctask is waiting" and set it to 3.
Ported-by: Tim Chase <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #2716
Diffstat (limited to 'include/sys/txg.h')
| -rw-r--r-- | include/sys/txg.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/sys/txg.h b/include/sys/txg.h index 1bb6bac91..44f81beca 100644 --- a/include/sys/txg.h +++ b/include/sys/txg.h @@ -23,7 +23,7 @@ * Use is subject to license terms. */ /* - * Copyright (c) 2013 by Delphix. All rights reserved. + * Copyright (c) 2012, 2014 by Delphix. All rights reserved. */ #ifndef _SYS_TXG_H @@ -118,6 +118,7 @@ extern void txg_wait_callbacks(struct dsl_pool *dp); extern void txg_list_create(txg_list_t *tl, size_t offset); extern void txg_list_destroy(txg_list_t *tl); extern boolean_t txg_list_empty(txg_list_t *tl, uint64_t txg); +extern boolean_t txg_all_lists_empty(txg_list_t *tl); extern boolean_t txg_list_add(txg_list_t *tl, void *p, uint64_t txg); extern boolean_t txg_list_add_tail(txg_list_t *tl, void *p, uint64_t txg); extern void *txg_list_remove(txg_list_t *tl, uint64_t txg); |