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tracing: NumSubscribers() to use atomic instead of mutex (#11219)

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globalSubscribers.NumSubscribers() is heavily used in S3 requests and it
uses mutex, use atomic.Load instead since it is faster

Co-authored-by: Anis Elleuch <anis@min.io>
This commit is contained in:
Anis Elleuch
2021-01-04 18:40:30 +01:00
committed by GitHub
parent dfd99b6d8f
commit 153d4be032
6 changed files with 13 additions and 16 deletions
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2
cmd/background-heal-ops.go
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@@ -67,7 +67,7 @@ func waitForLowHTTPReq(maxIO int, maxWait time.Duration) {
// Bucket notification and http trace are not costly, it is okay to ignore them
// while counting the number of concurrent connections
maxIOFn := func() int {
return maxIO + globalHTTPListen.NumSubscribers() + globalHTTPTrace.NumSubscribers()
return maxIO + int(globalHTTPListen.NumSubscribers()) + int(globalHTTPTrace.NumSubscribers())
}
if httpServer := newHTTPServerFn(); httpServer != nil {