Unexplained Jumps In Response Time "Fixed" By Disabling Tiered Compilation
Andrew Haley
aph at redhat.com
Tue May 31 15:25:29 UTC 2016
On 05/30/2016 07:30 PM, James Lent wrote:
> 1) Is my interpretation of these logs correct?
I think so.
> 2) What would trigger the HotSpot compiler to keep recompiling these
> methods over and over?
Code cache is full. Either that, or there is a nasty bug in the
compiler.
> 3) Would increasing the Code Cache size help (it seems to revert to its
> old max of 48m when Tiered Compilation is disabled)? I doubt it, but, I
> am giving it try in my dev environment.
Yes.
> 4) Is it worth considering setting PerMethodRecompilationCutoff to '-1'
> (disable it)?
Probably not.
Andrew.
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