Changeset 387

Timestamp:

Apr 5, 2006 7:04:34 PM (19 years ago)

Author:

bennylp

Message:

Don't use rdtsc for high res timestamp on Linux as it's highly inaccurate (for now)

Location:

pjproject/trunk/pjlib/src

Files:

• pj/os_timestamp_linux.c (modified) (1 diff)
• pjlib-test/timestamp.c (modified) (1 diff)

pjproject/trunk/pjlib/src/pj/os_timestamp_linux.c

@@ -24 +24 @@
 #include <ctype.h>
 
-#if defined(PJ_HAS_PENTIUM) && PJ_HAS_PENTIUM!=0
+#if defined(PJ_HAS_PENTIUM) && PJ_HAS_PENTIUM!=0 && \
+    defined(PJ_TIMESTAMP_USE_RDTSC) && PJ_TIMESTAMP_USE_RDTSC!=0 && \
+    defined(PJ_M_I386) && PJ_M_I386!=0 && \
+    defined(PJ_LINUX) && PJ_LINUX!=0
 static int machine_speed_mhz;
 static pj_timestamp machine_speed;

pjproject/trunk/pjlib/src/pjlib-test/timestamp.c

@@ -100 +100 @@
                              (pj_uint32_t)(diff * 1000000 / freq.u64), 
                              msec));
+    } else {
+        PJ_LOG(3,(THIS_FILE, "....good. Timestamp is accurate down to"
+                             " nearest usec."));
     }