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602473d786
When using a direct executor we don't need to wrap calls in a serializing executor and can thus also avoid the overhead that comes with it. Benchmarks show that throughput can be improved substantially. On my MBP I get a 24% improvement in throughput with also significantly better latency throughout all percentiles. (running qps_client and qps_server with --address=localhost:1234 --directexecutor) === BEFORE === Channels: 4 Outstanding RPCs per Channel: 10 Server Payload Size: 0 Client Payload Size: 0 50%ile Latency (in micros): 452 90%ile Latency (in micros): 600 95%ile Latency (in micros): 726 99%ile Latency (in micros): 1314 99.9%ile Latency (in micros): 5663 Maximum Latency (in micros): 136447 QPS: 78498 === AFTER === Channels: 4 Outstanding RPCs per Channel: 10 Server Payload Size: 0 Client Payload Size: 0 50%ile Latency (in micros): 399 90%ile Latency (in micros): 429 95%ile Latency (in micros): 453 99%ile Latency (in micros): 650 99.9%ile Latency (in micros): 1265 Maximum Latency (in micros): 33855 QPS: 97552 |
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