Closed Bug 1371061 Opened 4 years ago Closed 4 years ago

nsBaseHashtable::GetOrInsert does two hashtable lookups in the Insert case

Categories

(Core :: XPCOM, defect)

Product:
Core
Component:
XPCOM
Type:
defect
Priority:
Not set
Severity:
major

Tracking

()

Status:
RESOLVED FIXED
Milestone:
mozilla55
Tracking Flags:
Tracking Status
firefox55 --- fixed

People

(Reporter: mats, Assigned: mats)

References

Details

(Keywords: perf, Whiteboard: [qf:p1])

Attachments

(1 file)

Optimize nsBaseHashtable::GetOrInsert() to only do a single hashtable lookup
1.01 KB, patch
froydnj
: review+
Details | Diff | Splinter Review 
It seems to me we could just do a PutEntry instead:
http://searchfox.org/mozilla-central/rev/1a054419976437d0778a2b89be1b00207a744e94/xpcom/ds/nsTHashtable.h#147
Assignee: nobody → mats
Thanks for fixing this.  I didn't push very hard in the initial bug to do the Right Thing, but I see now that it wouldn't have been very hard to do the Right Thing, which is completely my fault!
Try looks green so far so I think it'll pass.
Attachment #8875526 - Flags: review?(nfroyd)
Attachment #8875526 - Flags: review?(nfroyd) → review+
Pushed by mpalmgren@mozilla.com:
https://hg.mozilla.org/integration/mozilla-inbound/rev/97735d7197e2
Optimize nsBaseHashtable::GetOrInsert() to only do a single hashtable lookup.  r=froydnj
Whiteboard: [qf] → [qf:p1]
https://hg.mozilla.org/mozilla-central/rev/97735d7197e2
Status: NEW → RESOLVED
Closed: 4 years ago
status-firefox55: --- → fixed
Resolution: --- → FIXED
Target Milestone: --- → mozilla55
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