InlineSmallCode is too low by default

Coleen Phillimore coleen.phillimore at
Mon Apr 23 14:29:43 PDT 2012

I'm resending this to the compiler development alias.

On 4/23/2012 12:50 PM, Rémi Forax wrote:
> InlineSmallCode is set to 1000 on x86 by default if tiered mode
> is not enabled and 2000 if tiered mode is enabled.
> I wonder if there is a reason for that inconsistency.
> InlineSmallCode is the threshold used by the inlining heuristic
> to know if a method is too big or not to be inlined multiple times,
> on my dynamic language runtime, setting it to 2000 is very important
> because otherwise most of the high order functions (function that
> takes a function as argument) are not compiled with their callsite
> so escape analysis can't work.
> I suppose it's also the case for users that use libraries like
> Google guava or Goldman Sachs's gs-collection that exhibit the same 
> patterns.
> that why I propose to bump InlineSmallCode to 2000 for x86 and
> 2500 for sparc by default (the defaults in tiered mode).
> Rémi

More information about the hotspot-runtime-dev mailing list