Anindya Sinha created MESOS-5978:
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Summary: Improve run time for arithmetic operators for Resources
Key: MESOS-5978
URL: https://issues.apache.org/jira/browse/MESOS-5978
Project: Mesos
Issue Type: Improvement
Components: general
Reporter: Anindya Sinha
Assignee: Anindya Sinha
Priority: Minor
Resource arithmetic concerning += and -= operators needs to be improved such
that the impact of shared resources is minimal. Following is the observation of
Resources_BENCHMARK_Test.Arithmetic.
Head
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Resources benchmark on top of 6ce156b2bed7edecb27ce50f68d262ea4ab4f88e
[ RUN ] ResourcesOperators/Resources_BENCHMARK_Test.Arithmetic/0
Took 72228us to perform 50000 'total += r' operations on cpus(*):1; gpus(*):1;
mem(*):128; disk(*):256
Took 101574us to perform 50000 'total -= r' operations on cpus(*):1; gpus(*):1;
mem(*):128; disk(*):256
Took 251715us to perform 50000 'total = total + r' operations on cpus(*):1;
gpus(*):1; mem(*):128; disk(*):256
Took 293414us to perform 50000 'total = total - r' operations on cpus(*):1;
gpus(*):1; mem(*):128; disk(*):256
Pre-shared resources
=================
Resources benchmark on top of 48a492cd9d7d0a194735b9b4107a35b489c596e1
[ RUN ] ResourcesOperators/Resources_BENCHMARK_Test.Arithmetic/0
Took 48583us to perform 50000 'total += r' operations on cpus(*):1; gpus(*):1;
mem(*):128; disk(*):256
Took 86166us to perform 50000 'total -= r' operations on cpus(*):1; gpus(*):1;
mem(*):128; disk(*):256
Took 233148us to perform 50000 'total = total + r' operations on cpus(*):1;
gpus(*):1; mem(*):128; disk(*):256
Took 265719us to perform 50000 'total = total - r' operations on cpus(*):1;
gpus(*):1; mem(*):128; disk(*):256
'total += r' run time sees 40% jump. (I've run these 10 times and took an
average, the avg is 48685.4us (pre-shared resources) vs. 68421.7us (post-shared
resources).
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