Changeset 54454 in vbox for trunk/src/VBox/HostDrivers

Timestamp:

Feb 24, 2015 3:16:57 PM (10 years ago)

Author:

vboxsync

Message:

Disable the statistics collected in supdrvTscDeltaVerify.

File:

• trunk/src/VBox/HostDrivers/Support/SUPDrvGip.cpp (modified) (5 diffs)

trunk/src/VBox/HostDrivers/Support/SUPDrvGip.cpp

@@ -2619 +2619 @@
      * VERR_TRY_AGAIN on timeout. */
     int32_t                     rcVerify;
+#ifdef TSCDELTA_VERIFY_WITH_STATS
     /** The maximum difference between TSC read during delta verification. */
     int64_t                     cMaxVerifyTscTicks;
@@ -2626 +2627 @@
      * Negative value means the worker is behind the master.  */
     int64_t                     iVerifyBadTscDiff;
+#endif
 
     /** Padding to make sure the uVar1 is in its own cache line. */
@@ -3371 +3373 @@
              * Process the data.
              */
+#ifdef TSCDELTA_VERIFY_WITH_STATS
             pArgs->cMaxVerifyTscTicks = INT64_MIN;
             pArgs->cMinVerifyTscTicks = INT64_MAX;
             pArgs->iVerifyBadTscDiff  = 0;
+#endif
             ASMAtomicWriteS32(&pArgs->rcVerify, VINF_SUCCESS);
             uTscWorker = 0;
@@ -3384 +3388 @@
                 {
                     iDiff = uTscMaster - uTscWorker;
+#ifdef TSCDELTA_VERIFY_WITH_STATS
                     if (iDiff > pArgs->cMaxVerifyTscTicks)
                         pArgs->cMaxVerifyTscTicks = iDiff;
                     if (iDiff < pArgs->cMinVerifyTscTicks)
                         pArgs->cMinVerifyTscTicks = iDiff;
+#endif
                     if (iDiff < 0)
                     {
+#ifdef TSCDELTA_VERIFY_WITH_STATS
                         pArgs->iVerifyBadTscDiff = -iDiff;
+#endif
                         ASMAtomicWriteS32(&pArgs->rcVerify, VERR_OUT_OF_RANGE);
                         break;
@@ -3399 +3407 @@
                 uTscWorker = pArgs->auVerifyWorkerTscs[i] - iWorkerTscDelta;
                 iDiff = uTscWorker - uTscMaster;
+#ifdef TSCDELTA_VERIFY_WITH_STATS
                 if (iDiff > pArgs->cMaxVerifyTscTicks)
                     pArgs->cMaxVerifyTscTicks = iDiff;
                 if (iDiff < pArgs->cMinVerifyTscTicks)
                     pArgs->cMinVerifyTscTicks = iDiff;
+#endif
                 if (iDiff < 0)
                 {
+#ifdef TSCDELTA_VERIFY_WITH_STATS
                     pArgs->iVerifyBadTscDiff = iDiff;
+#endif
                     ASMAtomicWriteS32(&pArgs->rcVerify, VERR_OUT_OF_RANGE);
                     break;