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timer.run: provide more information if test fails 

Issue #2579
This commit is contained in:
Alexander Boettcher 2017-11-15 20:24:39 +01:00 committed by Christian Helmuth
parent 80778b267d
commit 59f97802a9
1 changed files with 34 additions and 9 deletions
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43
repos/os/src/test/timer/main.cc
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@ -37,20 +37,34 @@ struct Lazy_test
Signal_handler<Lazy_test> faster_handler { env.ep(), *this,
&Lazy_test::handle_faster_timer };
enum { RUN_TIME_US = 2 * 1000 * 1000, TIMEOUT_US = 50*1000, FACTOR = 2 };
unsigned fast = 0;
unsigned faster = 0;
void handle_slow_timer()
{
log("timeout fired");
log("timeout fired - ", fast, "/", faster, "/",
RUN_TIME_US / TIMEOUT_US * FACTOR);
if (fast)
throw Faster_timer_too_slow();
done.submit();
}
void handle_fast_timer() { throw Faster_timer_too_slow(); }
void handle_fast_timer() {
fast ++;
if (faster <= fast)
throw Faster_timer_too_slow();
}
void handle_faster_timer() { set_fast_timers(); }
void set_fast_timers()
{
enum { TIMEOUT_US = 50*1000 };
fast_timer.trigger_once(TIMEOUT_US);
faster_timer.trigger_once(TIMEOUT_US/2);
faster_timer.trigger_once(TIMEOUT_US/FACTOR);
faster ++;
}
Lazy_test(Env &env, Signal_context_capability done) : env(env), done(done)
@ -60,7 +74,7 @@ struct Lazy_test
faster_timer.sigh(faster_handler);
log("register two-seconds timeout...");
slow_timer.trigger_once(2*1000*1000);
slow_timer.trigger_once(RUN_TIME_US);
set_fast_timers();
}
};
@ -100,7 +114,7 @@ struct Stress_test
timer.trigger_once(us);
}
void dump()
void dump(unsigned &starvation, unsigned &rate_violation)
{
log("timer (period ", us, " us) triggered ", count,
" times (min ", (unsigned)MIN_CNT,
@ -111,13 +125,13 @@ struct Stress_test
if (count < MIN_CNT) {
error("triggered less than ", (unsigned)MIN_CNT,
" times");
throw Starvation();
starvation ++;
}
/* detect violation of timer rate limitation */
if (count > MAX_CNT) {
error("triggered more than ", (unsigned)MAX_CNT,
" times");
throw Violation_of_timer_rate_limit();
rate_violation ++;
}
}
@ -140,8 +154,19 @@ struct Stress_test
log("wait ", count, "/", (unsigned)DURATION_SEC);
timer.trigger_once(1000UL * 1000);
} else {
unsigned starvation = 0;
unsigned rate_violation = 0;
slaves.for_each([&] (Slave &timer) { timer.stop(); });
slaves.for_each([&] (Slave &timer) { timer.dump(); });
slaves.for_each([&] (Slave &timer) {
timer.dump(starvation, rate_violation);
});
if (starvation)
throw Starvation();
if (rate_violation)
throw Violation_of_timer_rate_limit();
done.submit();
}
}