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spark-instrumented-optimizer/core/benchmarks/KryoSerializerBenchmark-results.txt

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[SPARK-25839][CORE] Implement use of KryoPool in KryoSerializer ## What changes were proposed in this pull request? * Implement (optional) use of KryoPool in KryoSerializer, an alternative to the existing implementation of caching a Kryo instance inside KryoSerializerInstance * Add config key & documentation of spark.kryo.pool in order to turn this on * Add benchmark KryoSerializerBenchmark to compare new and old implementation * Add results of benchmark ## How was this patch tested? Added new tests inside KryoSerializerSuite to test the pool implementation as well as added the pool option to the existing regression testing for SPARK-7766 This is my original work and I license the work to the project under the project’s open source license. Closes #22855 from patrickbrownsync/kryo-pool. Authored-by: Patrick Brown <patrick.brown@blyncsy.com> Signed-off-by: Sean Owen <sean.owen@databricks.com>
2018-11-10 13:51:24 -05:00
================================================================================================
[SPARK-29282][TESTS] Use the same VM configurations for test/benchmark ### What changes were proposed in this pull request? This PR aims to specify the JDK8 default configurations `-XX:+UseParallelGC -XX:-UseDynamicNumberOfGCThreads` explicitly. As we see in this PR [here](https://github.com/apache/spark/pull/25966/files#diff-12b89b7ee67c63c2254b749c8f8d0694R10), this will make the comparison between JDK8 and JDK11 easier by removing a misleading regression. **NOTE THAT THESE JVM CONFS ARE ONLY FOR BENCHMARK COMPARISON, NOT FOR A PRODUCTION** ### Why are the changes needed? There exists many JVM-level changes between JDK8 and JDK11. For example, the followings are notable changes and it turns out that especially (1) and (2) shows a misleading regression in our micro-benchmark environment because our microbenchmark uses small VM memory. 1. [JEP 248: Make G1 the Default Garbage Collector](https://bugs.openjdk.java.net/browse/JDK-8073273) **JDK9+** 2. [Enable UseDynamicNumberOfGCThreads by default](https://bugs.openjdk.java.net/browse/JDK-8198547) **JDK11+** 3. [Change default value of HeapSizePerGCThread](https://bugs.openjdk.java.net/browse/JDK-8200417) **JDK11+** ### Does this PR introduce any user-facing change? No. ### How was this patch tested? This is a test-only JVM configuration change. Manually, run the benchmark. Closes #25966 from dongjoon-hyun/SPARK-29282. Authored-by: Dongjoon Hyun <dhyun@apple.com> Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2019-09-29 18:11:46 -04:00
Benchmark KryoPool vs old"pool of 1" implementation
[SPARK-25839][CORE] Implement use of KryoPool in KryoSerializer ## What changes were proposed in this pull request? * Implement (optional) use of KryoPool in KryoSerializer, an alternative to the existing implementation of caching a Kryo instance inside KryoSerializerInstance * Add config key & documentation of spark.kryo.pool in order to turn this on * Add benchmark KryoSerializerBenchmark to compare new and old implementation * Add results of benchmark ## How was this patch tested? Added new tests inside KryoSerializerSuite to test the pool implementation as well as added the pool option to the existing regression testing for SPARK-7766 This is my original work and I license the work to the project under the project’s open source license. Closes #22855 from patrickbrownsync/kryo-pool. Authored-by: Patrick Brown <patrick.brown@blyncsy.com> Signed-off-by: Sean Owen <sean.owen@databricks.com>
2018-11-10 13:51:24 -05:00
================================================================================================
[SPARK-29282][TESTS] Use the same VM configurations for test/benchmark ### What changes were proposed in this pull request? This PR aims to specify the JDK8 default configurations `-XX:+UseParallelGC -XX:-UseDynamicNumberOfGCThreads` explicitly. As we see in this PR [here](https://github.com/apache/spark/pull/25966/files#diff-12b89b7ee67c63c2254b749c8f8d0694R10), this will make the comparison between JDK8 and JDK11 easier by removing a misleading regression. **NOTE THAT THESE JVM CONFS ARE ONLY FOR BENCHMARK COMPARISON, NOT FOR A PRODUCTION** ### Why are the changes needed? There exists many JVM-level changes between JDK8 and JDK11. For example, the followings are notable changes and it turns out that especially (1) and (2) shows a misleading regression in our micro-benchmark environment because our microbenchmark uses small VM memory. 1. [JEP 248: Make G1 the Default Garbage Collector](https://bugs.openjdk.java.net/browse/JDK-8073273) **JDK9+** 2. [Enable UseDynamicNumberOfGCThreads by default](https://bugs.openjdk.java.net/browse/JDK-8198547) **JDK11+** 3. [Change default value of HeapSizePerGCThread](https://bugs.openjdk.java.net/browse/JDK-8200417) **JDK11+** ### Does this PR introduce any user-facing change? No. ### How was this patch tested? This is a test-only JVM configuration change. Manually, run the benchmark. Closes #25966 from dongjoon-hyun/SPARK-29282. Authored-by: Dongjoon Hyun <dhyun@apple.com> Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2019-09-29 18:11:46 -04:00
OpenJDK 64-Bit Server VM 1.8.0_222-b10 on Linux 3.10.0-862.3.2.el7.x86_64
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
Benchmark KryoPool vs old"pool of 1" implementation: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
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KryoPool:true 6012 7586 NaN 0.0 12023020.2 1.0X
KryoPool:false 9289 11566 909 0.0 18578683.1 0.6X
[SPARK-25839][CORE] Implement use of KryoPool in KryoSerializer ## What changes were proposed in this pull request? * Implement (optional) use of KryoPool in KryoSerializer, an alternative to the existing implementation of caching a Kryo instance inside KryoSerializerInstance * Add config key & documentation of spark.kryo.pool in order to turn this on * Add benchmark KryoSerializerBenchmark to compare new and old implementation * Add results of benchmark ## How was this patch tested? Added new tests inside KryoSerializerSuite to test the pool implementation as well as added the pool option to the existing regression testing for SPARK-7766 This is my original work and I license the work to the project under the project’s open source license. Closes #22855 from patrickbrownsync/kryo-pool. Authored-by: Patrick Brown <patrick.brown@blyncsy.com> Signed-off-by: Sean Owen <sean.owen@databricks.com>
2018-11-10 13:51:24 -05:00
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