DCD/ci/request_time_stats.d

110 lines
2.6 KiB
D

import core.time;
import std.algorithm;
import std.conv;
import std.format;
import std.stdio;
import std.string;
void main()
{
long[] shortRequests, longRequests;
foreach (line; stdin.byLine)
{
auto index = line.countUntil("Request processed in ");
if (index == -1)
{
stderr.writeln("Warning: skipping unknown line for stats: ", line);
continue;
}
index += "Request processed in ".length;
auto dur = line[index .. $].parseDuration;
if (dur != Duration.init)
{
if (dur >= 10.msecs)
longRequests ~= dur.total!"hnsecs";
else
shortRequests ~= dur.total!"hnsecs";
}
}
if (shortRequests.length > 0)
{
writeln("STAT:short requests: (", shortRequests.length, "x)");
summarize(shortRequests);
}
writeln("STAT:");
if (longRequests.length > 0)
{
writeln("STAT:long requests over 10ms: (", longRequests.length, "x)");
summarize(longRequests);
}
}
void summarize(long[] hnsecs)
{
hnsecs.sort!"a<b";
auto minRequest = hnsecs[0];
auto maxRequest = hnsecs[$ - 1];
auto medianRequest = hnsecs[$ / 2];
auto p10Request = hnsecs[$ * 10 / 100];
auto p90Request = hnsecs[$ * 90 / 100];
writeln("STAT: min request time = ", minRequest.formatHnsecs);
writeln("STAT: 10th percentile = ", p10Request.formatHnsecs);
writeln("STAT: median time = ", medianRequest.formatHnsecs);
writeln("STAT: 90th percentile = ", p90Request.formatHnsecs);
writeln("STAT: max request time = ", maxRequest.formatHnsecs);
}
string formatHnsecs(T)(T hnsecs)
{
return format!"%9.3fms"(cast(double)hnsecs / cast(double)1.msecs.total!"hnsecs");
}
Duration parseDuration(scope const(char)[] dur)
{
auto origDur = dur;
scope (failure)
stderr.writeln("Failed to parse ", origDur);
Duration ret;
while (dur.length)
{
dur = dur.stripLeft;
if (dur.startsWith(","))
dur = dur[1 .. $].stripLeft;
if (dur.startsWith("and"))
dur = dur[3 .. $].stripLeft;
auto num = dur.parse!int;
dur = dur.stripLeft;
switch (dur.startsWith(num == 1 ? "minute" : "minutes", num == 1 ? "sec" : "secs", "ms", "μs", num == 1 ? "hnsec" : "hnsecs"))
{
case 1:
dur = dur[(num == 1 ? "minute" : "minutes").length .. $];
ret += num.minutes;
break;
case 2:
dur = dur[(num == 1 ? "sec" : "secs").length .. $];
ret += num.seconds;
break;
case 3:
dur = dur["ms".length .. $];
ret += num.msecs;
break;
case 4:
dur = dur["μs".length .. $];
ret += num.usecs;
break;
case 5:
dur = dur[(num == 1 ? "hnsec" : "hnsecs").length .. $];
ret += num.hnsecs;
break;
default:
stderr.writeln("Warning: unimplemented duration parsing for ", origDur, " (at ", dur, ")");
return Duration.init;
}
}
return ret;
}