Mercurial Mercurial > jdk-sandbox / annotate
summary | shortlog | changelog | graph | tags | bookmarks | branches | files | changeset | file | latest | revisions | annotate | diff | comparison | raw | help
Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
hotspot/src/share/tools/LogCompilation/README
author vlivanov
Fri, 13 Sep 2013 04:16:54 -0700
changeset 20010 c66a7254680c
parent 14623 70c4c1be0a14
child 46763 1b0ff6953b5a
permissions -rw-r--r--
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log) Reviewed-by: twisti, kvn, sla
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
2126
f6f30d1677a8 6807963: need tool to make sense of LogCompilaton output
never
parents:
diff changeset 
     1
 
This is a very rough tool for parsing -XX:+LogCompilation output.
f6f30d1677a8 6807963: need tool to make sense of LogCompilaton output
never
parents:
diff changeset 
     2
 
It's main purpose is to recreate output similar to
f6f30d1677a8 6807963: need tool to make sense of LogCompilaton output
never
parents:
diff changeset 
     3
 
-XX:+PrintCompilation -XX:+PrintInlining output from a debug JVM.  It
f6f30d1677a8 6807963: need tool to make sense of LogCompilaton output
never
parents:
diff changeset 
     4
 
requires a 1.5 JDK to build and simply typing make should build it.
f6f30d1677a8 6807963: need tool to make sense of LogCompilaton output
never
parents:
diff changeset 
     5
 












f6f30d1677a8
6807963: need tool to make sense of LogCompilaton output



never


parents: 

diff
changeset




     6


It produces a jar file, logc.jar, that can be run on the








20010






c66a7254680c
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)



vlivanov


parents: 
14623

diff
changeset




     7


HotSpot log (by default, hotspot_pid{pid}.log) from LogCompilation output like this:








2126






f6f30d1677a8
6807963: need tool to make sense of LogCompilaton output



never


parents: 

diff
changeset




     8









20010






c66a7254680c
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)



vlivanov


parents: 
14623

diff
changeset




     9


  java -jar logc.jar hotspot_pid1234.log








2126






f6f30d1677a8
6807963: need tool to make sense of LogCompilaton output



never


parents: 

diff
changeset




    10














f6f30d1677a8
6807963: need tool to make sense of LogCompilaton output



never


parents: 

diff
changeset




    11


This will produce something like the normal PrintCompilation output.













f6f30d1677a8
6807963: need tool to make sense of LogCompilaton output



never


parents: 

diff
changeset




    12


Adding the -i option with also report inlining like PrintInlining.













f6f30d1677a8
6807963: need tool to make sense of LogCompilaton output



never


parents: 

diff
changeset




    13









20010






c66a7254680c
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)



vlivanov


parents: 
14623

diff
changeset




    14


More information about the LogCompilation output can be found at








2126






f6f30d1677a8
6807963: need tool to make sense of LogCompilaton output



never


parents: 

diff
changeset




    15









14623






70c4c1be0a14
7092905: C2: Keep track of the number of dead nodes



bharadwaj


parents: 
2126

diff
changeset




    16


https://wikis.oracle.com/display/HotSpotInternals/LogCompilation+overview













70c4c1be0a14
7092905: C2: Keep track of the number of dead nodes



bharadwaj


parents: 
2126

diff
changeset




    17


https://wikis.oracle.com/display/HotSpotInternals/PrintCompilation













70c4c1be0a14
7092905: C2: Keep track of the number of dead nodes



bharadwaj


parents: 
2126

diff
changeset




    18


https://wikis.oracle.com/display/HotSpotInternals/LogCompilation+tool















jdk-sandbox