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test-coroutine: add performance test for nesting

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The performance test will also check for nesting. It will do
a certain quantity of cycles, and each of one will do a depth
nesting process.

This is useful for benchmarking the creation of coroutines,
given that nesting is creation-intensive (and the other perf
test does not benchmark that).

Signed-off-by: Alex Barcelo <abarcelo@ac.upc.edu>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Alex Barcelo 2012-02-16 13:14:06 +01:00 committed by Kevin Wolf
parent fe91bfa8a2
commit 7e849a9919
1 changed files with 27 additions and 0 deletions
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27
test-coroutine.c
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@ -177,6 +177,32 @@ static void perf_lifecycle(void)
g_test_message("Lifecycle %u iterations: %f s\n", max, duration);
}
static void perf_nesting(void)
{
unsigned int i, maxcycles, maxnesting;
double duration;
maxcycles = 100000000;
maxnesting = 20000;
Coroutine *root;
NestData nd = {
.n_enter = 0,
.n_return = 0,
.max = maxnesting,
};
g_test_timer_start();
for (i = 0; i < maxcycles; i++) {
root = qemu_coroutine_create(nest);
qemu_coroutine_enter(root, &nd);
}
duration = g_test_timer_elapsed();
g_test_message("Nesting %u iterations of %u depth each: %f s\n",
maxcycles, maxnesting, duration);
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
@ -187,6 +213,7 @@ int main(int argc, char **argv)
g_test_add_func("/basic/in_coroutine", test_in_coroutine);
if (g_test_perf()) {
g_test_add_func("/perf/lifecycle", perf_lifecycle);
g_test_add_func("/perf/nesting", perf_nesting);
}
return g_test_run();
}