I was lucky with google cpu profiler https://github.com/gperftools/gperftools
it could summarize cpu time per function. can you try it ? пт, 3 июл. 2020 г. в 23:20, Willy Tarreau <[email protected]>: > Hi Igor, > > On Fri, Jul 03, 2020 at 12:52:35PM +0800, Igor Pav wrote: > > Hi William, Tried but still the same ;( > > That's bad. Do you know if your servers actually support 0rtt, and if > this 0rtt currently works between haproxy and the servers ? Because by > having the retry on 0rtt, there are two things which can have an impact > on your CPU usage: > - the alloc+memcpy() of the request buffer before sending it, in order > to be able to send it again if needed ; depending on your bandwidth > this may have an impact ; > > - if 0rtt constantly fails, haproxy would retry without it, so you > could actually be facing the double of the work on the request > processing. > > For the last one you should have a look at your stats page to see if the > retries column increases. You may also want to try without "allow-0rtt" > on the server lines and see if that fixes it. If so, we might be getting > closer (which doesn't mean I have anything in mind about it yet). > > Did 2.1 work fine for you on the same setup ? > > Thanks, > Willy > >
