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author | Alex Barcelo <abarcelo@ac.upc.edu> | 2012-02-16 13:14:06 +0100 |
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committer | Kevin Wolf <kwolf@redhat.com> | 2012-03-12 15:14:08 +0100 |
commit | 7e849a9919aac147a768a775014f2eff98e44323 (patch) | |
tree | f39d37cc08e7af101ff1cd09f4424b8a6aea78e7 | |
parent | fe91bfa8a26832cc07a6b74b8decfb687499caee (diff) | |
download | qemu-7e849a9919aac147a768a775014f2eff98e44323.zip qemu-7e849a9919aac147a768a775014f2eff98e44323.tar.gz qemu-7e849a9919aac147a768a775014f2eff98e44323.tar.bz2 |
test-coroutine: add performance test for nesting
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>
-rw-r--r-- | test-coroutine.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test-coroutine.c b/test-coroutine.c index bf9f3e9..e5d14eb 100644 --- a/test-coroutine.c +++ b/test-coroutine.c @@ -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(); } |