RFR (M): 7177003 C1: LogCompilation support

[Christian Thalinger]

On Sep 25, 2012, at 2:23 PM, Vladimir Ivanov <vladimir.x.ivanov at oracle.com> wrote:

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

src/share/vm/runtime/globals.hpp:

-  develop(bool, CICountOSR, true,                                           \
+  develop(bool, CICountOSR, false,                                          \

Why did you change this one?  Because of the consistent method numbering?

src/share/vm/c1/c1_GraphBuilder.cpp:

-    print_inlining(callee, "");
+    print_inlining(callee, "receiver is statically known");

Not sure about this change.  PrintInlining will now print this line for all inlinees.

-- Chris

> 
> 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:
> 	 <code_cache
> 		total_blobs='258'
> 		nmethods='50'
> 		adapters='133'
> 		free_code_cache='98839808'
> 		largest_free_block='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