Request for review (L): 7087838: JSR 292: add throttling logic for optimistic call site optimizations
Mark Roos
mroos at roos.com
Tue Sep 20 23:21:11 PDT 2011
>From Remi
Moreover, are you sure the code that contains these callsites is JITed,
No, but then how would I know and what would I do if I did know. If its
JITed
and I do the 10th ( or whatever) invalidate in three months because of
uploading a patch
and because of that the app slows down until I reboot it that is a problem
for me.
Smalltalk is dynamic not just in its use of variables but in its ability
to redo methods on
the fly ( and create new classes on demand etc). Because of this I will
need to invalidate
callsites in the cache. I really don't think it will be helpful if I have
to drop the methods and
recompile the byte codes to get 'fresh' callsites.
Maybe I could have a way to put the site back into 'bootstrap' mode. Maybe
even with
a SwitchPoint.
I think I can deal with depth control I am not sure I can deal with an
'helpful' compiler
regards
mark
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.openjdk.java.net/pipermail/mlvm-dev/attachments/20110920/404cfc8a/attachment.html
More information about the mlvm-dev
mailing list