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| author | Sulabh Mahajan <sulabh.mahajan@mongodb.com> | 2016-10-06 17:42:53 +1100 |
|---|---|---|
| committer | Alex Gorrod <alexander.gorrod@mongodb.com> | 2016-10-06 17:42:53 +1100 |
| commit | 4aa57e5ed1b0ada49c47be325b83f21c2e5fb56a (patch) | |
| tree | 8565d6a0fa3e7238bb7006c070d16ea8cbba4c1b /src/reconcile | |
| parent | 5404417a941f40e18180b59fa86ac098b0a556f5 (diff) | |
| download | mongo-4aa57e5ed1b0ada49c47be325b83f21c2e5fb56a.tar.gz | |
WT-2831 Skip checkpointing if there have been no modifications (#3067)
This saves locking and scanning the list of active handles for read-only workloads, which can be time consuming when there are many tables.
Diffstat (limited to 'src/reconcile')
| -rw-r--r-- | src/reconcile/rec_write.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/reconcile/rec_write.c b/src/reconcile/rec_write.c index 16858729c74..09c5879acf8 100644 --- a/src/reconcile/rec_write.c +++ b/src/reconcile/rec_write.c @@ -564,10 +564,12 @@ __rec_write_status(WT_SESSION_IMPL *session, WT_RECONCILE *r, WT_PAGE *page) * barrier after the change for clarity (the requirement is the * flag be set before a subsequent checkpoint reads it, and * as the current checkpoint is waiting on this reconciliation - * to complete, there's no risk of that happening) + * to complete, there's no risk of that happening). */ - btree->modified = 1; + btree->modified = true; WT_FULL_BARRIER(); + if (!S2C(session)->modified) + S2C(session)->modified = true; /* * Eviction should only be here if following the save/restore |