Changeset 6266 in vbox

Timestamp:

Jan 7, 2008 9:58:54 PM (17 years ago)

Author:

vboxsync

Message:

tstTime-4: Check that RTTimeNanoTS and RTTimeSystemNanoTS are using the same source so that we don't mess up should GIP be enabled late or disabled early.

Location:

trunk/src/VBox/Runtime/testcase

Files:

• Makefile.kmk (modified) (3 diffs)
• tstTime-4.cpp (copied) (copied from trunk/src/VBox/Runtime/testcase/tstTime-2.cpp ) (3 diffs)

trunk/src/VBox/Runtime/testcase/Makefile.kmk

@@ -58 +58 @@
         tstTime-2 \
         tstTime-3 \
+        tstTime-4 \
         tstTimer \
         tstTimeSpec \
@@ -88 +89 @@
 TEMPLATE = VBOXR3TSTEXE
 
+tstTime_SOURCES = tstTime.cpp
+
+tstTime-2_SOURCES = tstTime-2.cpp
+
+tstTime-3_SOURCES = tstTime-3.cpp
+
+tstTime-4_SOURCES = tstTime-4.cpp
+
+tstTimeSpec_SOURCES = tstTimeSpec.cpp
 
 tstTimer_SOURCES = tstTimer.cpp
@@ -93 +103 @@
 tstTSC_SOURCES = tstTSC.cpp
 tstTSC_CXXFLAGS.linux += -O3
-
-tstTime_SOURCES = tstTime.cpp
-
-tstTime-2_SOURCES = tstTime-2.cpp
-
-tstTime-3_SOURCES = tstTime-3.cpp
-
-tstTimeSpec_SOURCES = tstTimeSpec.cpp
 
 tstStrFormat_SOURCES = tstStrFormat.cpp

trunk/src/VBox/Runtime/testcase/tstTime-4.cpp

@@ -1 +1 @@
 /* $Id$ */
 /** @file
- * innotek Portable Runtime Testcase - Simple RTTime test.
+ * innotek Portable Runtime Testcase - Simple RTTime vs. RTTimeSystem test.
  */
 
@@ -30 +30 @@
 #include <iprt/time.h>
 #include <iprt/stream.h>
-#include <iprt/runtime.h>
+#include <iprt/initterm.h>
 #include <iprt/thread.h>
 #include <VBox/sup.h>
@@ -39 +39 @@
 {
     unsigned cErrors = 0;
-    int i;
+
     RTR3Init();
-    RTPrintf("tstTime-2: TESTING...\n");
+    RTPrintf("tstTime-4: TESTING...\n");
 
     /*
-     * RTNanoTimeTS() shall never return something which
-     * is less or equal to the return of the previous call.
+     * Check that RTTimeSystemNanoTS doesn't go backwards and 
+     * isn't too far from RTTimeNanoTS().
      */
+    RTTimeSystemNanoTS(); RTTimeNanoTS(); RTThreadYield(); /* warmup */
+    const uint64_t SysStartTS = RTTimeSystemNanoTS();
+    const uint64_t GipStartTS = RTTimeNanoTS();
+    uint64_t SysPrevTS, GipPrevTS;
+    do
+    {
+        SysPrevTS = RTTimeSystemNanoTS();
+        GipPrevTS = RTTimeNanoTS();
+        if (SysPrevTS < SysStartTS)
+        {
+            cErrors++;
+            RTPrintf("tstTime-4: Bad Sys time!\n");
+        }
+        if (GipPrevTS < GipStartTS)
+        {
+            cErrors++;
+            RTPrintf("tstTime-4: Bad Gip time!\n");
+        }
+        int64_t Delta = GipPrevTS - SysPrevTS;
+        if (Delta > 0 ? Delta > 100000000 /* 100 ms */ : Delta < -100000000 /* -100 ms */)
+        {
+            cErrors++;
+            RTPrintf("tstTime-4: Delta=%lld!\n", Delta);
+        }
 
-    RTTimeSystemNanoTS(); RTTimeNanoTS(); RTThreadYield();
-    uint64_t u64RTStartTS = RTTimeNanoTS();
-    uint64_t u64OSStartTS = RTTimeSystemNanoTS();
-#define NUMBER_OF_CALLS (100*_1M)
+    } while (SysPrevTS - SysStartTS < 2000000000 /* 2s */);
 
-    for (i = 0; i < NUMBER_OF_CALLS; i++)
-        RTTimeNanoTS();
-
-    uint64_t u64RTElapsedTS = RTTimeNanoTS();
-    uint64_t u64OSElapsedTS = RTTimeSystemNanoTS();
-    u64RTElapsedTS -= u64RTStartTS;
-    u64OSElapsedTS -= u64OSStartTS;
-    int64_t i64Diff = u64OSElapsedTS >= u64RTElapsedTS ? u64OSElapsedTS - u64RTElapsedTS : u64RTElapsedTS - u64OSElapsedTS;
-    if (i64Diff > (int64_t)(u64OSElapsedTS / 1000))
-    {
-        RTPrintf("tstTime-2: error: total time differs too much! u64OSElapsedTS=%#llx u64RTElapsedTS=%#llx delta=%lld\n",
-                 u64OSElapsedTS, u64RTElapsedTS, u64OSElapsedTS - u64RTElapsedTS);
-        cErrors++;
-    }
-    else
-        RTPrintf("tstTime-2: total time difference: u64OSElapsedTS=%#llx u64RTElapsedTS=%#llx delta=%lld\n",
-                 u64OSElapsedTS, u64RTElapsedTS, u64OSElapsedTS - u64RTElapsedTS);
-
-    RTPrintf("tstTime-2: %u calls to RTTimeNanoTS\n", NUMBER_OF_CALLS);
-    RTPrintf("tstTime-2: RTTimeDbgSteps   -> %u (%d ppt)\n", RTTimeDbgSteps(),   ((uint64_t)RTTimeDbgSteps() * 1000) / NUMBER_OF_CALLS);
-    RTPrintf("tstTime-2: RTTimeDbgExpired -> %u (%d ppt)\n", RTTimeDbgExpired(), ((uint64_t)RTTimeDbgExpired() * 1000) / NUMBER_OF_CALLS);
-    RTPrintf("tstTime-2: RTTimeDbgBad     -> %u (%d ppt)\n", RTTimeDbgBad(),     ((uint64_t)RTTimeDbgBad() * 1000) / NUMBER_OF_CALLS);
-    RTPrintf("tstTime-2: RTTimeDbgRaces   -> %u (%d ppt)\n", RTTimeDbgRaces(),   ((uint64_t)RTTimeDbgRaces() * 1000) / NUMBER_OF_CALLS);
 
     if (!cErrors)
-        RTPrintf("tstTime-2: SUCCESS\n");
+        RTPrintf("tstTime-4: SUCCESS\n");
     else
-        RTPrintf("tstTime-2: FAILURE - %d errors\n", cErrors);
+        RTPrintf("tstTime-4: FAILURE - %d errors\n", cErrors);
     return !!cErrors;
 }
+