Stats for IProfiler fanin data #20971
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jenkins compile all jdk21 |
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Builds have passed (except windows which does not have any machines to run on). |
dsouzai
requested changes
Jan 20, 2025
For diagnostics, IProfiler fanin data can be dumped at shutdown into a specified file. This commit improves the formatting of the data that is dumped and adds a histogram about the number of callers for each tracked callee. The following environment variables control the output: - `TR_PrintIPFanInStats`: enables the printing of fanin data at JVM shutdown time. Note that another way of enabling the printing of this data is to use -Xjit:iprofilerVerbose, provided TR_PrintMethodHashTableFileName is set - `TR_PrintMethodHashTableFileName`: sets the name of the file that the data will be dumped into. If this is not provided the dump will not occur. - `TR_PrintMethodHashTableMethodNames`: print method names as well. By default, method names are not printed to avoid potential crashes due to classes having been unloaded. Signed-off-by: Marius Pirvu <[email protected]>
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jenkins compile xlinux jdk21 |
dsouzai
approved these changes
Jan 20, 2025
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jenkins compile zlinux jdk17 |
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For diagnostics, IProfiler fanin data can be dumped at shutdown into a specified file.
This commit improves the formatting of the data that is dumped and adds a histogram about the number of callers for each tracked callee.
The following environment variables control the output:
TR_PrintIPFanInStats: enables the printing of fanin data at JVM shutdown time. Note that another way of enabling the printing of this data is to use -Xjit:iprofilerVerbose, provided TR_PrintMethodHashTableFileName is setTR_PrintMethodHashTableFileName: sets the name of the file that the data will be dumped into. If this is not provided the dump will not occur.TR_PrintMethodHashTableMethodNames: print method names as well. By default, method names are not printed to avoid potential crashes due to classes having been unloaded.