virajjasani commented on pull request #3302: URL: https://github.com/apache/hbase/pull/3302#issuecomment-850502504
> https://stackoverflow.com/questions/19052316/why-is-system-nanotime-way-slower-in-performance-than-system-currenttimemill As per the Oracle blog (link to blog is obsolete): If you are interested in measuring/calculating elapsed time, then always use System.nanoTime(). On most systems it will give a resolution on the order of microseconds. Be aware though, this call can also take microseconds to execute on some platforms. It looks like, unless we are too specific about elapsed time that we want only nanosecond level elapsed time, we should prefer System#currentTimeMillis for the perf benefit. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
