Changeset 73639 in vbox for trunk/src/VBox/ValidationKit

Timestamp:

Aug 13, 2018 3:00:49 PM (6 years ago)

Author:

vboxsync

Message:

ValidationKit/SerialTest: Increase the timestamp resolution to avoid division by 0 errors

File:

• trunk/src/VBox/ValidationKit/utils/serial/SerialTest.cpp (modified) (4 diffs)

trunk/src/VBox/ValidationKit/utils/serial/SerialTest.cpp

@@ -381 +381 @@
 static DECLCALLBACK(int) serialTestRunReadWrite(PSERIALTEST pSerialTest)
 {
-    uint64_t tsStart = RTTimeMilliTS();
+    uint64_t tsStart = RTTimeNanoTS();
     bool fFailed = false;
     SERIALTESTTXRXBUFCNT SerBufTx;
@@ -423 +423 @@
     }
 
-    uint64_t tsRuntime = RTTimeMilliTS() - tsStart;
-    tsRuntime /= 1000; /* Seconds */
-    RTTestValue(pSerialTest->hTest, "Throughput", g_cbTx / tsRuntime, RTTESTUNIT_BYTES_PER_SEC);
+    uint64_t tsRuntime = RTTimeNanoTS() - tsStart;
+    size_t cNsPerByte = tsRuntime / g_cbTx;
+    uint64_t cbBytesPerSec = RT_NS_1SEC / cNsPerByte;
+    RTTestValue(pSerialTest->hTest, "Throughput", cbBytesPerSec, RTTESTUNIT_BYTES_PER_SEC);
 
     return rc;
@@ -439 +440 @@
 static DECLCALLBACK(int) serialTestRunWrite(PSERIALTEST pSerialTest)
 {
-    uint64_t tsStart = RTTimeMilliTS();
+    uint64_t tsStart = RTTimeNanoTS();
     SERIALTESTTXRXBUFCNT SerBufTx;
 
@@ -458 +459 @@
     }
 
-    uint64_t tsRuntime = RTTimeMilliTS() - tsStart;
-    tsRuntime /= 1000; /* Seconds */
-    RTTestValue(pSerialTest->hTest, "Throughput", g_cbTx / tsRuntime, RTTESTUNIT_BYTES_PER_SEC);
+    uint64_t tsRuntime = RTTimeNanoTS() - tsStart;
+    size_t cNsPerByte = tsRuntime / g_cbTx;
+    uint64_t cbBytesPerSec = RT_NS_1SEC / cNsPerByte;
+    RTTestValue(pSerialTest->hTest, "Throughput", cbBytesPerSec, RTTESTUNIT_BYTES_PER_SEC);
 
     return rc;