RFR (M): 7177003 C1: LogCompilation support (original) (raw)

Vladimir Ivanov vladimir.x.ivanov at oracle.com
Tue Sep 25 14:23:00 PDT 2012

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7177003: C1: LogCompilation support http://cr.openjdk.java.net/~vlivanov/7177003/

LogCompilation support in C1 - both client [1] and tiered [2] modes.

These changes are only for Hotspot. LogCompilation tool changes will be sent separately.

Also: - print code cache state (after each nmethod installation) Example:

 - consistent nmethod numbering between ordinary and OSR compilations
 - correct printing of thread id's
 - added missed tty locks where necessary

Thanks!

Best regards, Vladimir Ivanov

PS: actually, if it simplifies review, I can send cleanup/small enhancements as a separate change.

PPS: phew! Finally deciphered how deoptimization in C1 works =)

[1] http://cr.openjdk.java.net/~vlivanov/7177003/webrev.00/compilation.client.log [2] http://cr.openjdk.java.net/~vlivanov/7177003/webrev.00/compilation.tiered.log

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