Re:Disable transparent hugepages
by userbinator on Tuesday November 28, 2017 @06:55AM
(#15796381)
Do not blindly follow any recommendation on the Internet, please! Measure, measure and measure again!
It's also important to measure in your actual use-case, and not just with benchmarks that seem "close enough"; I know it sounds odd, but I've seen others adjust settings and then prove that it worked with a benchmark that they claim is "representative", when in reality they didn't actually improve anything because that "representative benchmark" differed from the real use case in precisely the way that would not respond to the adjustment.
Blindly following "best practices" is bad enough, but "proving" that the changes work with crucially-different benchmarks is worse; and when it's some expensive consultant doing such things, I think it may even approach fraud.
It's also important to measure in your actual use-case, and not just with benchmarks that seem "close enough"; I know it sounds odd, but I've seen others adjust settings and then prove that it worked with a benchmark that they claim is "representative", when in reality they didn't actually improve anything because that "representative benchmark" differed from the real use case in precisely the way that would not respond to the adjustment.
Blindly following "best practices" is bad enough, but "proving" that the changes work with crucially-different benchmarks is worse; and when it's some expensive consultant doing such things, I think it may even approach fraud.