This commit adds a basic test to check the cycle cost
of related to calling into a service.
Signed-off-by: Harry van Haaren <harry.van.haa...@intel.com>
---
v2:
- Add space at start of output (Phil Yang)
- Fix compile error on older GCCs (David Marchand)
---
app/test/test_service_cores.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/app/test/test_service_cores.c b/app/test/test_service_cores.c
index a922c7ddc..75a3f8b45 100644
--- a/app/test/test_service_cores.c
+++ b/app/test/test_service_cores.c
@@ -789,8 +789,19 @@ service_app_lcore_poll_impl(const int mt_safe)
"MT Unsafe: App core1 didn't return -EBUSY");
}
- unregister_all();
+ /* Performance test: call in a loop, and measure tsc() */
+ uint32_t i;
+ const uint32_t perf_iters = (1 << 12);
+ uint64_t start = rte_rdtsc();
+ for (i = 0; i < perf_iters; i++) {
+ int err = service_run_on_app_core_func(&id);
+ TEST_ASSERT_EQUAL(0, err, "perf test: returned run failure");
+ }
+ uint64_t end = rte_rdtsc();
+ printf("\t\tperf test for %s: %0.1f cycles per call\n", mt_safe ?
+ "MT Safe" : "MT Unsafe", (end - start)/(float)perf_iters);
+ unregister_all();
return TEST_SUCCESS;
}
--
2.17.1
