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repeat.v: add --fail_percent option

pull/6536/head
Delyan Angelov 2020-10-02 10:57:58 +03:00
parent 7c86b03505
commit c747ba1c3f
1 changed files with 24 additions and 4 deletions
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28
cmd/tools/repeat.v
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@ -12,6 +12,7 @@ struct CmdResult {
mut:
runs int
cmd string
icmd int
outputs []string
oms map[string][]int
summary map[string]Aints
@ -24,6 +25,7 @@ mut:
warmup int
show_help bool
show_result bool
fail_on_regress_percent int
verbose bool
commands []string
results []CmdResult
@ -68,6 +70,9 @@ fn new_aints(vals []int) Aints {
}
fn (a Aints) str() string { return util.bold('${a.average:9.3f}') + 'ms ± σ: ${a.stddev:-5.1f}ms, min … max: ${a.imin}ms … ${a.imax}ms' }
const (
max_fail_percent = 100000
)
fn main(){
mut context := Context{}
context.parse_options()
@ -87,7 +92,7 @@ fn (mut context Context) parse_options() {
context.warmup = fp.int('warmup', `w`, 2, 'Warmup runs')
context.show_help = fp.bool('help', `h`, false, 'Show this help screen.')
context.verbose = fp.bool('verbose', `v`, false, 'Be more verbose.')
context.show_result = fp.bool('result', `r`, true, 'Show the result too.')
context.fail_on_regress_percent = fp.int('fail_percent', `f`, max_fail_percent, 'Fail with 1 exit code, when first cmd is X% slower than the rest (regression).')
if context.show_help {
println(fp.usage())
exit(0)
@ -146,6 +151,7 @@ fn (mut context Context) run() {
oldres = res.output.replace('\n', ' ')
}
context.results[icmd].cmd = cmd
context.results[icmd].icmd = icmd
context.results[icmd].runs = runs
context.results[icmd].atiming = new_aints(context.results[icmd].timings)
context.clear_line()
@ -181,10 +187,24 @@ fn (mut context Context) show_diff_summary() {
}
return 0
})
println('Summary (commands ordered by ascending average time), after $context.count repeats:')
println('Summary (commands are ordered by ascending mean time), after $context.count repeats:')
base := context.results[0].atiming.average
mut first_cmd_percentage := f64(100.0)
for i, r in context.results {
cpercent := (r.atiming.average / base) * 100
println(' ${(i+1):3}. ${cpercent:6.1f}% ${r.cmd:60} | ${r.atiming}')
cpercent := (r.atiming.average / base) * 100 - 100
first_marker := if r.icmd == 0 { util.bold('>') } else { ' ' }
if r.icmd == 0 {
first_cmd_percentage = cpercent
}
println(' ${first_marker}${(i+1):3} | ${cpercent:6.1f}% slower | ${r.cmd:-55s} | ${r.atiming}')
}
if context.fail_on_regress_percent == max_fail_percent || context.results.len < 2 {
return
}
fail_threshold_max := f64(context.fail_on_regress_percent)
if first_cmd_percentage > fail_threshold_max {
print('Performance regression detected, failing since ')
println('${first_cmd_percentage:5.1f}% > ${fail_threshold_max:5.1f}% threshold.')
exit(1)
}
}