[SPARK-16238] Metrics for generated method and class bytecode size #13934
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Test build #61338 has finished for PR 13934 at commit
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| /** | ||
| * Records the generated class and method bytecode sizes by inspecting janino private fields. | ||
| */ |
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can we have a unit test for this?
It'd be useful once we upgrade Janino dependency.
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There is one below. It should fail if any of the janino internal apis change.
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LGTM - merging in master/2.0. |
asfgit
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Jun 29, 2016
## What changes were proposed in this pull request? This extends SPARK-15860 to include metrics for the actual bytecode size of janino-generated methods. They can be accessed in the same way as any other codahale metric, e.g. ``` scala> org.apache.spark.metrics.source.CodegenMetrics.METRIC_GENERATED_CLASS_BYTECODE_SIZE.getSnapshot().getValues() res7: Array[Long] = Array(532, 532, 532, 542, 1479, 2670, 3585, 3585) scala> org.apache.spark.metrics.source.CodegenMetrics.METRIC_GENERATED_METHOD_BYTECODE_SIZE.getSnapshot().getValues() res8: Array[Long] = Array(5, 5, 5, 5, 10, 10, 10, 10, 15, 15, 15, 38, 63, 79, 88, 94, 94, 94, 132, 132, 165, 165, 220, 220) ``` ## How was this patch tested? Small unit test, also verified manually that the performance impact is minimal (<10%). hvanhovell Author: Eric Liang <[email protected]> Closes #13934 from ericl/spark-16238. (cherry picked from commit 23c5865) Signed-off-by: Reynold Xin <[email protected]>
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What changes were proposed in this pull request?
This extends SPARK-15860 to include metrics for the actual bytecode size of janino-generated methods. They can be accessed in the same way as any other codahale metric, e.g.
How was this patch tested?
Small unit test, also verified manually that the performance impact is minimal (<10%). @hvanhovell