[VIndex] Parallel computation of the mapped leaves#108
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mhutchinson wants to merge 1 commit intotransparency-dev:mainfrom
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[VIndex] Parallel computation of the mapped leaves#108mhutchinson wants to merge 1 commit intotransparency-dev:mainfrom
mhutchinson wants to merge 1 commit intotransparency-dev:mainfrom
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This is a CPU bottleneck, so let's do it in parallel. ``` Before: 254.58user 15.41system 3:44.19elapsed 120%CPU (0avgtext+0avgdata 1409964maxresident)k 3031616inputs+2965888outputs (4major+756304minor)pagefaults 0swaps After: 282.40user 15.61system 1:57.16elapsed 254%CPU (0avgtext+0avgdata 1405804maxresident)k 9141704inputs+3113128outputs (5915major+1263537minor)pagefaults 0swaps ```
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This is a CPU bottleneck, so let's do it in parallel. This makes it about 2x faster for SumDB by wall clock.