Changeset 27163 in vbox for trunk

Timestamp:

Mar 8, 2010 1:18:49 PM (15 years ago)

Author:

vboxsync

Message:

Profiling of large page allocation

Location:

trunk/src/VBox/VMM

Files:

• PGM.cpp (modified) (1 diff)
• PGMInternal.h (modified) (1 diff)
• PGMPhys.cpp (modified) (3 diffs)
• VMMAll/PGMAllPhys.cpp (modified) (2 diffs)

trunk/src/VBox/VMM/PGM.cpp

@@ -1617 +1617 @@
         rc = STAMR3RegisterF(pVM, a, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, c, b); \
         AssertRC(rc);
+
+    PGM_REG_PROFILE(&pPGM->StatAllocLargePage,                "/PGM/LargePage/Prof/Alloc",          "Time spent by the host OS for large page allocation.");
+    PGM_REG_PROFILE(&pPGM->StatClearLargePage,                "/PGM/LargePage/Prof/Clear",          "Time spent clearing the newly allocated large pages.");
+    PGM_REG_PROFILE(&pPGM->StatR3IsValidLargePage,            "/PGM/LargePage/Prof/R3/IsValid",     "pgmPhysIsValidLargePage profiling - R3.");
+    PGM_REG_PROFILE(&pPGM->StatRZIsValidLargePage,            "/PGM/LargePage/Prof/RZ/IsValid",     "pgmPhysIsValidLargePage profiling - RZ.");
 
     PGM_REG_COUNTER(&pPGM->StatR3DetectedConflicts,           "/PGM/R3/DetectedConflicts",          "The number of times PGMR3CheckMappingConflicts() detected a conflict.");

trunk/src/VBox/VMM/PGMInternal.h

@@ -2860 +2860 @@
     STAMCOUNTER StatTrackOverflows;                 /**< The number of times the extent list grows to long. */
     STAMPROFILE StatTrackDeref;                     /**< Profiling of SyncPageWorkerTrackDeref (expensive). */
+
+    /** Time spent by the host OS for large page allocation. */
+    STAMPROFILE                 StatAllocLargePage;
+    /** Time spent clearing the newly allocated large pages. */
+    STAMPROFILE                 StatClearLargePage;
+    /** pgmPhysIsValidLargePage profiling - R3 */
+    STAMPROFILE                 StatR3IsValidLargePage;
+    /** pgmPhysIsValidLargePage profiling - RZ*/
+    STAMPROFILE                 StatRZIsValidLargePage;
 #endif
 } PGM;

trunk/src/VBox/VMM/PGMPhys.cpp

@@ -3248 +3248 @@
     pgmLock(pVM);
 
+    STAM_PROFILE_START(&pVM->pgm.s.StatAllocLargePage, a);
     int rc = VMMR3CallR0(pVM, VMMR0_DO_PGM_ALLOCATE_LARGE_HANDY_PAGE, 0, NULL);
+    STAM_PROFILE_STOP(&pVM->pgm.s.StatAllocLargePage, a);
     if (RT_SUCCESS(rc))
     {
@@ -3273 +3275 @@
              * Clear the pages.
              */
+            STAM_PROFILE_START(&pVM->pgm.s.StatClearLargePage, a);
             for (unsigned i = 0; i < _2M/PAGE_SIZE; i++)
             {
@@ -3304 +3307 @@
                 Log3(("PGMR3PhysAllocateLargePage: idPage=%#x HCPhys=%RGp\n", idPage, HCPhys));
             }
+            STAM_PROFILE_STOP(&pVM->pgm.s.StatClearLargePage, a);
+
             /* Flush all TLBs. */
             PGM_INVL_ALL_VCPU_TLBS(pVM);

trunk/src/VBox/VMM/VMMAll/PGMAllPhys.cpp

@@ -581 +581 @@
     }
 
+    STAM_PROFILE_START(&pVM->pgm.s.CTX_MID_Z(Stat,IsValidLargePage), a);
     /* Check all remaining pages in the 2 MB range. */
     GCPhys += PAGE_SIZE;
@@ -600 +601 @@
         GCPhys += PAGE_SIZE;
     }
+    STAM_PROFILE_STOP(&pVM->pgm.s.CTX_MID_Z(Stat,IsValidLargePage), a);
+
     if (i == _2M/PAGE_SIZE)
     {