Pool PerformanceΒΆ
The pool performance can be measured using benchmarks.
Benchmark with neighbors work stealing enabled:
Running ./benchbin
Run on (4 X 3500 MHz CPU s)
CPU Caches:
L1 Data 32K (x4)
L1 Instruction 32K (x4)
L2 Unified 256K (x4)
L3 Unified 6144K (x1)
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Benchmark Time CPU Iterations
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bm_work_tasks/8 0 ms 0 ms 12826
bm_work_tasks/64 0 ms 0 ms 7478
bm_work_tasks/512 1 ms 1 ms 1216
bm_work_tasks/4096 5 ms 4 ms 157
bm_work_tasks/32768 36 ms 36 ms 19
bm_work_tasks/262144 302 ms 301 ms 2
bm_work_tasks/2097152 2370 ms 2346 ms 1
bm_blocking_tasks/8 0 ms 0 ms 10341
bm_blocking_tasks/64 1 ms 0 ms 5379
bm_blocking_tasks/512 8 ms 1 ms 600
bm_blocking_tasks/4096 66 ms 4 ms 100
bm_blocking_tasks/32768 525 ms 30 ms 10
bm_blocking_tasks/262144 4160 ms 250 ms 1
Benchmark with work stealing across all workers enabled:
Running ./benchbin
Run on (4 X 3500 MHz CPU s)
CPU Caches:
L1 Data 32K (x4)
L1 Instruction 32K (x4)
L2 Unified 256K (x4)
L3 Unified 6144K (x1)
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Benchmark Time CPU Iterations
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bm_work_tasks/8 0 ms 0 ms 12669
bm_work_tasks/64 0 ms 0 ms 7430
bm_work_tasks/512 1 ms 1 ms 1146
bm_work_tasks/4096 5 ms 5 ms 153
bm_work_tasks/32768 37 ms 36 ms 19
bm_work_tasks/262144 311 ms 308 ms 2
bm_work_tasks/2097152 2459 ms 2443 ms 1
bm_blocking_tasks/8 0 ms 0 ms 11270
bm_blocking_tasks/64 1 ms 0 ms 5836
bm_blocking_tasks/512 8 ms 1 ms 600
bm_blocking_tasks/4096 65 ms 4 ms 100
bm_blocking_tasks/32768 516 ms 30 ms 10
bm_blocking_tasks/262144 4125 ms 244 ms 1
Benchmark with work no work stealing:
Running ./benchbin
Run on (4 X 3500 MHz CPU s)
CPU Caches:
L1 Data 32K (x4)
L1 Instruction 32K (x4)
L2 Unified 256K (x4)
L3 Unified 6144K (x1)
----------------------------------------------------------------
Benchmark Time CPU Iterations
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bm_work_tasks/8 0 ms 0 ms 12989
bm_work_tasks/64 0 ms 0 ms 6765
bm_work_tasks/512 1 ms 1 ms 1181
bm_work_tasks/4096 5 ms 5 ms 157
bm_work_tasks/32768 36 ms 36 ms 19
bm_work_tasks/262144 307 ms 305 ms 2
bm_work_tasks/2097152 2407 ms 2393 ms 1
bm_blocking_tasks/8 0 ms 0 ms 8766
bm_blocking_tasks/64 1 ms 0 ms 4970
bm_blocking_tasks/512 9 ms 1 ms 600
bm_blocking_tasks/4096 67 ms 4 ms 100
bm_blocking_tasks/32768 529 ms 30 ms 10
bm_blocking_tasks/262144 4224 ms 242 ms 1