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Code Issues Releases Wiki Activity

modules/console: Add ios depth diagnostic based on epoch counter.

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This commit is contained in:
Jason Volk 2020-06-18 20:00:22 -07:00
parent ba4c98d7e8
commit 73c64a1e04
1 changed files with 59 additions and 0 deletions

59
modules/console.cc
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@ -1663,6 +1663,65 @@ console_cmd__ios(opt &out, const string_view &line)
return true;
}
bool
console_cmd__ios__depth(opt &out, const string_view &line)
{
uint64_t returned, executed, started;
// ios::dispatch
{
started = ios::epoch();
ios::dispatch(ios::synchronous, [&executed]
{
executed = ios::epoch();
});
returned = ios::epoch();
}
out
<< "disp send: " << (executed - started) << std::endl
<< "disp recv: " << (returned - executed) << std::endl
<< "disp rtt: " << (returned - started) << std::endl
<< std::endl;
// ios::defer
{
started = ios::epoch();
ios::defer(ios::synchronous, [&executed]
{
executed = ios::epoch();
});
returned = ios::epoch();
}
out
<< "defer send: " << (executed - started) << std::endl
<< "defer recv: " << (returned - executed) << std::endl
<< "defer rtt: " << (returned - started) << std::endl
<< std::endl;
// ios::post
{
started = ios::epoch();
ios::post(ios::synchronous, [&executed]
{
executed = ios::epoch();
});
returned = ios::epoch();
}
out
<< "post send: " << (executed - started) << std::endl
<< "post recv: " << (returned - executed) << std::endl
<< "post rtt: " << (returned - started) << std::endl
<< std::endl;
return true;
}
#ifdef __x86_64__
bool
console_cmd__ios__latency(opt &out, const string_view &line)