On 4/17/2018 12:34 PM, Jameson Miller wrote:
100K Test baseline [4] block_allocation ------------------------------------------------------------------------------------ 0002.1: read_cache/discard_cache 1 times 0.03(0.01+0.01) 0.02(0.01+0.01) -33.3% 1M: Test baseline block_allocation ------------------------------------------------------------------------------------ 0002.1: read_cache/discard_cache 1 times 0.23(0.12+0.11) 0.17(0.07+0.09) -26.1% 2M: Test baseline block_allocation ------------------------------------------------------------------------------------ 0002.1: read_cache/discard_cache 1 times 0.45(0.26+0.19) 0.39(0.17+0.20) -13.3% 100K is not a large enough sample size to show the perf impact of this change, but we can see a perf improvement with 1M and 2M entries.
I see a 33% change with 100K files which is a substantial improvement even in the 100K case. I do see that the actual wall clock savings aren't nearly as much with a small repo as it is with the larger repos which makes sense.
