eal: allow to override init macros per OS

[dpdk.git] / lib / librte_eal / common / eal_common_timer.c

diff --git a/lib/librte_eal/common/eal_common_timer.c b/lib/librte_eal/common/eal_common_timer.c
index dcf26bf..68d67e6 100644 (file)
--- a/lib/librte_eal/common/eal_common_timer.c
+++ b/lib/librte_eal/common/eal_common_timer.c
@@ -64,12 +64,14 @@ rte_get_tsc_hz(void)
 static uint64_t
 estimate_tsc_freq(void)
 {
+#define CYC_PER_10MHZ 1E7
        RTE_LOG(WARNING, EAL, "WARNING: TSC frequency estimated roughly"
                " - clock timings may be less accurate.\n");
        /* assume that the sleep(1) will sleep for 1 second */
        uint64_t start = rte_rdtsc();
        sleep(1);
-       return rte_rdtsc() - start;
+       /* Round up to 10Mhz. 1E7 ~ 10Mhz */
+       return RTE_ALIGN_MUL_NEAR(rte_rdtsc() - start, CYC_PER_10MHZ);
 }
 
 void