Mercurial > hg > truffle
annotate src/share/tools/LogCompilation/README @ 12169:29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
Summary: Avoid loading old values in G1 pre-barriers for inlined unsafe load_store nodes.
Reviewed-by: kvn, tonyp
Contributed-by: Martin Doerr <martin.doerr@sap.com>
author | kvn |
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date | Wed, 28 Aug 2013 11:22:43 +0200 |
parents | 2aff40cb4703 |
children | 01b268b3080a |
rev | line source |
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600 | 1 This is a very rough tool for parsing -XX:+LogCompilation output. |
2 It's main purpose is to recreate output similar to | |
3 -XX:+PrintCompilation -XX:+PrintInlining output from a debug JVM. It | |
4 requires a 1.5 JDK to build and simply typing make should build it. | |
5 | |
6 It produces a jar file, logc.jar, that can be run on the | |
7 hotspot.log from LogCompilation output like this: | |
8 | |
9 java -jar logc.jar hotspot.log | |
10 | |
11 This will produce something like the normal PrintCompilation output. | |
12 Adding the -i option with also report inlining like PrintInlining. | |
13 | |
14 More information about the LogCompilation output can be found at | |
15 | |
7196
2aff40cb4703
7092905: C2: Keep track of the number of dead nodes
bharadwaj
parents:
600
diff
changeset
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16 https://wikis.oracle.com/display/HotSpotInternals/LogCompilation+overview |
2aff40cb4703
7092905: C2: Keep track of the number of dead nodes
bharadwaj
parents:
600
diff
changeset
|
17 https://wikis.oracle.com/display/HotSpotInternals/PrintCompilation |
2aff40cb4703
7092905: C2: Keep track of the number of dead nodes
bharadwaj
parents:
600
diff
changeset
|
18 https://wikis.oracle.com/display/HotSpotInternals/LogCompilation+tool |