cxzl25 commented on code in PR #3451:
URL: https://github.com/apache/celeborn/pull/3451#discussion_r2335513421
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worker/src/main/java/org/apache/celeborn/service/deploy/worker/storage/PartitionFilesSorter.java:
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@@ -799,6 +804,16 @@ public void sort() {
sorting.remove(fileId);
}
}
+ long sortDuration = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() -
sortStartTime);
Review Comment:
I think this makes sense, I changed it again.
We had previously encountered the problem of `nanoTime` performance
degradation when clocksource is HPET in production environment.
TSC Clocksource Switching to HPET During High I/O Load
https://www.suse.com/support/kb/doc/?id=000021035
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