Sanne Grinovero ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-13879 ( https://hibernate.atlassian.net/browse/HHH-13879?atlOrigin=eyJpIjoiMWU0N2... ) Re: Slow query log should use System#nanoTime not System#currentTimeMillis ( https://hibernate.atlassian.net/browse/HHH-13879?atlOrigin=eyJpIjoiMWU0N2... ) no worries Vlad, I’m not expressing a concern over your patch. Just pointing out that it’s not straight forward - as I said in my first sentence. Regarding monotonic clocks - that’s precisely the problem, neither {{ currentTimeMillis }} nor {{ nanoTime }} guarantee that. It doesn’t matter that the OS supports it, the JDK is not exposing the same counter - however what it exactly does depends on the version of the JVM, its vendor, and the OS. I’m aware of NTP issues - it’s probably better to stick with nanoTime for short durations - just worth keeping in mind that even so, it’s not bulletproof. ( https://hibernate.atlassian.net/browse/HHH-13879#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-13879#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100121- sha1:a269fed )