-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/33487/#review81359
-----------------------------------------------------------

Ship it!


Please amend the summary to be more explicit - "Increasing the default 
scheduling rate limit to 40 attempts per second."

- Bill Farner


On April 23, 2015, 6:01 p.m., Maxim Khutornenko wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/33487/
> -----------------------------------------------------------
> 
> (Updated April 23, 2015, 6:01 p.m.)
> 
> 
> Review request for Aurora and Bill Farner.
> 
> 
> Bugs: AURORA-1214
>     https://issues.apache.org/jira/browse/AURORA-1214
> 
> 
> Repository: aurora
> 
> 
> Description
> -------
> 
> With the asynchronous preemptor and a series of other perf improvements, our 
> scheduling alrorithm perfomance improved 230X - 270X:
> 
> Before
> ```
> Benchmark                                                                     
>    Mode  Samples    Score   Error  Units
> SchedulingBenchmarks.InsufficientResourcesSchedulingBenchmark.runBenchmark    
>  thrpt      100  214.098 ± 2.407  ops/s
> SchedulingBenchmarks.ConstraintMismatchsSchedulingBenchmark.runBenchmark      
>  thrpt      100  180.754 ± 2.407  ops/s
> ```
> After
> ```
> Benchmark                                                                     
>  Mode  Cnt      Score      Error  Units
> SchedulingBenchmarks.InsufficientResourcesSchedulingBenchmark.runBenchmark    
> thrpt   10  50328.609 ± 1356.151  ops/s
> SchedulingBenchmarks.ValueConstraintMismatchSchedulingBenchmark.runBenchmark  
> thrpt   10  49237.475 ± 1803.555  ops/s
> ```
> 
> We are only limited by the storage perf now (native + H2). Real life 
> scheduling round latencies are hovering around 25msec on average (SSD-backed 
> native log store), which suggests a new default scheduling rate of 40/sec.
> 
> 
> Diffs
> -----
> 
>   src/main/java/org/apache/aurora/scheduler/async/AsyncModule.java 
> 35c7e43746783ec81254b473848fb8579f9d233e 
> 
> Diff: https://reviews.apache.org/r/33487/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Maxim Khutornenko
> 
>

Reply via email to