committable6

query

HEAD use snapper; my $a = "a" x 1_000_000; for ^1_000 { $a ~~ /./ }

result

¦«HEAD(eebbcca)»:
Telemetry Report of Process #19106 (2017-11-12T13:57:39Z)
Number of Snapshots: 32
Initial/Final Size: 341620 / 555732 Kbytes
Total Time:           3.02 seconds
Total CPU Usage:      3.09 seconds
Supervisor thread ran the whole time

wallclock  util%  max-rss
   100391  13.95
   100192  12.98
   100228  12.97
   100241  12.97
   100249  12.47
   100220  12.97
   100214  12.97
   100195  12.97
   100232  13.47
   100213  12.47
   100224  12.97
   100301  12.46
   100295  13.46
   100184  12.48     1640
   100202  12.47    30360
   100187  13.47    30352
   100198  12.48    30356
   100217  12.97     3168
   100200  12.48
   100218  12.47
   100204  12.97
   100214  12.47
   100211  12.47
   100201  12.97
   100209  12.47
   100217  12.47
   100211  12.47    24280
   100222  12.97    30360
   100188  12.48    30356
   100189  12.98    30092
    10008   9.99     3148
--------- ------ --------
  3016675  12.81   214112

Legend:
wallclock  Number of microseconds elapsed
    util%  Percentage of CPU utilization (0..100%)
  max-rss  Maximum resident set size (in Kbytes)