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coroutine: fix /perf/nesting coroutine benchmark 

The /perf/nesting benchmark is broken because the counters are
not reset after each iteration. Therefore, nesting is done only
on the first iteration, and skipped on every other.

This patch fixes the issue, and reduces the number of iterations
to make it possible to run the benchmark in a reasonable amount of
time.

Signed-off-by: Gabriel Kerneis <gabriel@kerneis.info>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Gabriel Kerneis 2013-09-17 18:26:48 +02:00 committed by Stefan Hajnoczi
parent 2fcd15eac3
commit a9031675b9
1 changed files with 6 additions and 6 deletions
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12
tests/test-coroutine.c
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@ -182,17 +182,17 @@ static void perf_nesting(void)
unsigned int i, maxcycles, maxnesting;
double duration;
maxcycles = 100000000;
maxcycles = 10000;
maxnesting = 1000;
Coroutine *root;
NestData nd = {
.n_enter = 0,
.n_return = 0,
.max = maxnesting,
};
g_test_timer_start();
for (i = 0; i < maxcycles; i++) {
NestData nd = {
.n_enter = 0,
.n_return = 0,
.max = maxnesting,
};
root = qemu_coroutine_create(nest);
qemu_coroutine_enter(root, &nd);
}