NimYAML/bench/common.nim

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import stopwatch
template multiBench*(nanosecs: int64, times: int, body: stmt): stmt =
assert(times mod 2 == 0)
var arr: array[0..times - 1, int64]
for i in countup(0, times - 1):
var c: clock
bench(c):
body
arr[i] = c.nanoseconds()
sort(arr, cmp)
# ignore lowest and highest 10%
let tenth: int = times div 10
let lowest = arr[tenth]
var totaldiff = 0.int64
for i in countup(tenth + 1, times - tenth - 1):
totaldiff += arr[i] - lowest
nanosecs = lowest + totaldiff div (times - 2 * tenth)