Help with JIT talk for tomorrow

[Rémi Forax]

On 10/06/2011 03:27 PM, Krystal Mok wrote:
> I tried to document PrintCompilation a while ago, here: https://gist.github.com/1165804#file_notes.md
> Hope it helps. Sorry for the late reply, we're in holiday this week here in China.
>
> Regards,
> Kris Mok

Wow ! Impressive !

You should update the Hotspot internal wiki
http://wikis.sun.com/display/HotSpotInternals/Home

John, is it possible ?

Rémi

>
> On 2011-10-5, at 7:47, Charles Oliver Nutter<headius at headius.com>  wrote:
>
>> Hey all...I'm updating and expanding my talk on C2 and will be posting
>> some questions. Hopefully there's someone out there who can answer
>> them :)
>>
>> First up... given this output from PrintCompilation, what do the "!"
>> and "n" and "%" mean?
>>
>> Also, in Java 7 there's now two numbers instead of one at the begining
>> of the line...what are they?
>>
>>    1401   70             java.util.concurrent.ConcurrentHashMap::hash (49 bytes)
>>    1412   71             java.lang.String::indexOf (7 bytes)
>>    1420   72   !         java.io.BufferedReader::readLine (304 bytes)
>>    1420   73             sun.nio.cs.UTF_8$Decoder::decodeArrayLoop (543 bytes)
>>    1422   42             java.util.zip.ZipCoder::getBytes (192 bytes)
>> made not entrant
>>    1435   74     n       java.lang.Object::hashCode (0 bytes)
>>    1443   29   !         sun.misc.URLClassPath$JarLoader::getResource
>> (91 bytes)   made zombie
>>    1443   25             sun.misc.URLClassPath::getResource (74 bytes)
>>   made zombie
>>    1443   36             sun.misc.URLClassPath::getResource (74 bytes)
>>   made not entrant
>>    1443   43             java.util.zip.ZipCoder::encoder (35 bytes)
>> made not entrant
>>    1449   75             java.lang.String::endsWith (15 bytes)
>>    1631    1 %           sun.misc.URLClassPath::getResource @ 39 (74 bytes)
>>    1665   76             java.lang.ClassLoader::checkName (43 bytes)
>>
>> - Charlie
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