Captured on Ubuntu 14.04 VM on MacOS 10.13.4 on Macbook Pro 2017 running on battery Note that the max latency in the very batch is significantly higher than that for subsequent batches. This is expected to come from memory allocation penalties in first-time sizing of the underlying dynamic buffers. I0605 10:03:35.843739 5569 ztrace_perf.cpp:75] ZTRACE latency stats (100000 events): I0605 10:03:35.843832 5569 ztrace_perf.cpp:77] min = 0 microsec I0605 10:03:35.843834 5569 ztrace_perf.cpp:78] max = 245 microsec I0605 10:03:35.843837 5569 ztrace_perf.cpp:79] mean = 0.37134 microsec I0605 10:03:35.843849 5569 ztrace_perf.cpp:80] stdev = 1.128 microsec I0605 10:03:35.843852 5569 ztrace_perf.cpp:81] sum (debug) = 37134 microsec I0605 10:03:35.849402 5569 ztrace_perf.cpp:89] serialized size = 1200014 B [5107 microsec] I0605 10:03:35.881469 5569 ztrace_perf.cpp:75] ZTRACE latency stats (100000 events): I0605 10:03:35.881507 5569 ztrace_perf.cpp:77] min = 0 microsec I0605 10:03:35.881510 5569 ztrace_perf.cpp:78] max = 30 microsec I0605 10:03:35.881512 5569 ztrace_perf.cpp:79] mean = 0.2892 microsec I0605 10:03:35.881522 5569 ztrace_perf.cpp:80] stdev = 0.492142 microsec I0605 10:03:35.881525 5569 ztrace_perf.cpp:81] sum (debug) = 28920 microsec I0605 10:03:35.886754 5569 ztrace_perf.cpp:89] serialized size = 1200014 B [5084 microsec] I0605 10:03:35.919301 5569 ztrace_perf.cpp:75] ZTRACE latency stats (100000 events): I0605 10:03:35.919349 5569 ztrace_perf.cpp:77] min = 0 microsec I0605 10:03:35.919353 5569 ztrace_perf.cpp:78] max = 39 microsec I0605 10:03:35.919354 5569 ztrace_perf.cpp:79] mean = 0.29178 microsec I0605 10:03:35.919363 5569 ztrace_perf.cpp:80] stdev = 0.498803 microsec I0605 10:03:35.919366 5569 ztrace_perf.cpp:81] sum (debug) = 29178 microsec I0605 10:03:35.924882 5569 ztrace_perf.cpp:89] serialized size = 1200014 B [5386 microsec] I0605 10:03:35.958343 5569 ztrace_perf.cpp:75] ZTRACE latency stats (100000 events): I0605 10:03:35.958369 5569 ztrace_perf.cpp:77] min = 0 microsec I0605 10:03:35.958371 5569 ztrace_perf.cpp:78] max = 65 microsec I0605 10:03:35.958374 5569 ztrace_perf.cpp:79] mean = 0.30114 microsec I0605 10:03:35.958384 5569 ztrace_perf.cpp:80] stdev = 0.550885 microsec I0605 10:03:35.958386 5569 ztrace_perf.cpp:81] sum (debug) = 30114 microsec I0605 10:03:35.963819 5569 ztrace_perf.cpp:89] serialized size = 1200014 B [5298 microsec] I0605 10:03:35.996659 5569 ztrace_perf.cpp:75] ZTRACE latency stats (100000 events): I0605 10:03:35.996702 5569 ztrace_perf.cpp:77] min = 0 microsec I0605 10:03:35.996706 5569 ztrace_perf.cpp:78] max = 52 microsec I0605 10:03:35.996708 5569 ztrace_perf.cpp:79] mean = 0.29526 microsec I0605 10:03:35.996717 5569 ztrace_perf.cpp:80] stdev = 0.51927 microsec I0605 10:03:35.996719 5569 ztrace_perf.cpp:81] sum (debug) = 29526 microsec I0605 10:03:36.002440 5569 ztrace_perf.cpp:89] serialized size = 1200014 B [5583 microsec] I0605 10:03:36.035610 5569 ztrace_perf.cpp:75] ZTRACE latency stats (100000 events): I0605 10:03:36.035646 5569 ztrace_perf.cpp:77] min = 0 microsec I0605 10:03:36.035650 5569 ztrace_perf.cpp:78] max = 43 microsec I0605 10:03:36.035652 5569 ztrace_perf.cpp:79] mean = 0.29647 microsec I0605 10:03:36.035661 5569 ztrace_perf.cpp:80] stdev = 0.512948 microsec I0605 10:03:36.035665 5569 ztrace_perf.cpp:81] sum (debug) = 29647 microsec I0605 10:03:36.041443 5569 ztrace_perf.cpp:89] serialized size = 1200014 B [5655 microsec] I0605 10:03:36.075189 5569 ztrace_perf.cpp:75] ZTRACE latency stats (100000 events): I0605 10:03:36.075232 5569 ztrace_perf.cpp:77] min = 0 microsec I0605 10:03:36.075235 5569 ztrace_perf.cpp:78] max = 36 microsec I0605 10:03:36.075237 5569 ztrace_perf.cpp:79] mean = 0.3026 microsec I0605 10:03:36.075247 5569 ztrace_perf.cpp:80] stdev = 0.516346 microsec I0605 10:03:36.075249 5569 ztrace_perf.cpp:81] sum (debug) = 30260 microsec I0605 10:03:36.080610 5569 ztrace_perf.cpp:89] serialized size = 1200014 B [5238 microsec] I0605 10:03:36.114697 5569 ztrace_perf.cpp:75] ZTRACE latency stats (100000 events): I0605 10:03:36.114729 5569 ztrace_perf.cpp:77] min = 0 microsec I0605 10:03:36.114732 5569 ztrace_perf.cpp:78] max = 83 microsec I0605 10:03:36.114735 5569 ztrace_perf.cpp:79] mean = 0.30738 microsec I0605 10:03:36.114743 5569 ztrace_perf.cpp:80] stdev = 0.576973 microsec I0605 10:03:36.114747 5569 ztrace_perf.cpp:81] sum (debug) = 30738 microsec I0605 10:03:36.120088 5569 ztrace_perf.cpp:89] serialized size = 1200014 B [5217 microsec] I0605 10:03:36.154198 5569 ztrace_perf.cpp:75] ZTRACE latency stats (100000 events): I0605 10:03:36.154234 5569 ztrace_perf.cpp:77] min = 0 microsec I0605 10:03:36.154237 5569 ztrace_perf.cpp:78] max = 36 microsec I0605 10:03:36.154239 5569 ztrace_perf.cpp:79] mean = 0.30309 microsec I0605 10:03:36.154249 5569 ztrace_perf.cpp:80] stdev = 0.526865 microsec I0605 10:03:36.154251 5569 ztrace_perf.cpp:81] sum (debug) = 30309 microsec I0605 10:03:36.159723 5569 ztrace_perf.cpp:89] serialized size = 1200014 B [5344 microsec] I0605 10:03:36.192770 5569 ztrace_perf.cpp:75] ZTRACE latency stats (100000 events): I0605 10:03:36.192802 5569 ztrace_perf.cpp:77] min = 0 microsec I0605 10:03:36.192806 5569 ztrace_perf.cpp:78] max = 43 microsec I0605 10:03:36.192807 5569 ztrace_perf.cpp:79] mean = 0.29725 microsec I0605 10:03:36.192817 5569 ztrace_perf.cpp:80] stdev = 0.527913 microsec I0605 10:03:36.192821 5569 ztrace_perf.cpp:81] sum (debug) = 29725 microsec I0605 10:03:36.198453 5569 ztrace_perf.cpp:89] serialized size = 1200014 B [5471 microsec]