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

Vladimir Kozlov vladimir.kozlov at oracle.com
Tue Sep 25 15:47:32 PDT 2012

Good changes!

Small thing: in method.cpp and deoptimization.cpp remove (int) cast from os::current_thread_id() if you want tou use UINTX format (it reads 64bit in 64b VM).

Thanks, Vladimir

Vladimir Ivanov wrote:

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: <codecache_ _totalblobs='258'_ _nmethods='50'_ _adapters='133'_ _freecodecache='98839808'_ _largestfreeblock='98832512'/> - 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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