On aarch64 platforms, the cycles are counted using either a
low-resolution generic counter or a high-resolution PMU cycle counter.
Print the clock frequency along with CPU cycles/packet to identify which
cycle counter is being used.
Signed-off-by: Dharmik Thakkar <dharmik.thak...@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com>
Reviewed-by: Phil Yang <phil.y...@arm.com>
---
v2:
- Use %"PRIu64" instead of %lu
- Fix checkpatch warning
---
app/test-pmd/testpmd.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 99bacddbfdca..806abb805879 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -1953,11 +1953,14 @@ fwd_stats_display(void)
"%s\n",
acc_stats_border, acc_stats_border);
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
+#define CYC_PER_MHZ 1E6
if (total_recv > 0)
printf("\n CPU cycles/packet=%u (total cycles="
- "%"PRIu64" / total RX packets=%"PRIu64")\n",
+ "%"PRIu64" / total RX packets=%"PRIu64") at %"PRIu64
+ " MHz Clock\n",
(unsigned int)(fwd_cycles / total_recv),
- fwd_cycles, total_recv);
+ fwd_cycles, total_recv,
+ (uint64_t)(rte_get_tsc_hz() / CYC_PER_MHZ));
#endif
}
--
2.20.1
