[GitHub] [pinot] mcvsubbu commented on issue #7414: Tracing should not rely on the system clock

[GitBox <gi...@apache.org>]

mcvsubbu commented on issue #7414:
URL: https://github.com/apache/pinot/issues/7414#issuecomment-916248377


   I had the same thought as well, way early on in Pinot development.  However, when Adwait (a former pinot team member) and I researched a bit, we came across some articles that effectively said `System.currentTimeMillis()` was more efficient than nanos. I remember I was surprised because I thought getting nanos would be far cheaper, usually a relative clock that does not reach across cpus.  Perhaps the performance penalty is platform dependent, I am not sure.


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