- known to work on Linux (and Termux on Android, if using fork&exec)
- created as my simple "time for x in {1..100}; ..." benchmarks were a lot less pleasant on OpenBSD.
- this is a Mercury translation of the C version at https://github.com/jrfondren/getr
- this is the only version that doesn't complain and abort if
posix_spawnfails
make
make fork # build fork&exec version
$ getr 1000 ./fizzbuzz >/dev/null
User time : 0 s, 717132 us
System time : 0 s, 760456 us
Time : 1477 ms (1.477 ms/per)
Max RSS : 6.0 MB
Page reclaims : 481577
Page faults : 0
Block inputs : 0
Block outputs : 0
vol ctx switches : 1000
invol ctx switches : 40
$ getr 100 python3 -c ''
User time : 1 s, 254026 us
System time : 0 s, 258217 us
Time : 1512 ms (15.120 ms/per)
Max RSS : 8.2 MB
Page reclaims : 99141
Page faults : 0
Block inputs : 0
Block outputs : 0
vol ctx switches : 100
invol ctx switches : 8
$ getr -b 15.120 100 perl -le ''
| 0.085x | 1.280 ms | 5.9 MB |
- output is in an ad-hoc text format that machine consumers would need to parse manually
- 'getr' is probably a poor name