Changeset 33725 in vbox

Timestamp:

Nov 3, 2010 1:31:24 PM (14 years ago)

Author:

vboxsync

Message:

More stats for large page allocation

Location:

trunk/src/VBox/VMM

Files:

• PGM.cpp (modified) (1 diff)
• PGMInternal.h (modified) (1 diff)
• PGMPhys.cpp (modified) (1 diff)

trunk/src/VBox/VMM/PGM.cpp

@@ -1670 +1670 @@
     PGM_REG_PROFILE(&pStats->StatAllocLargePage,                "/PGM/LargePage/Prof/Alloc",          "Time spent by the host OS for large page allocation.");
     PGM_REG_PROFILE(&pStats->StatClearLargePage,                "/PGM/LargePage/Prof/Clear",          "Time spent clearing the newly allocated large pages.");
+    PGM_REG_COUNTER(&pStats->StatLargePageOverflow,             "/PGM/LargePage/Overflow",            "The number of times allocating a large page took too long.");
     PGM_REG_PROFILE(&pStats->StatR3IsValidLargePage,            "/PGM/LargePage/Prof/R3/IsValid",     "pgmPhysIsValidLargePage profiling - R3.");
     PGM_REG_PROFILE(&pStats->StatRZIsValidLargePage,            "/PGM/LargePage/Prof/RZ/IsValid",     "pgmPhysIsValidLargePage profiling - RZ.");

trunk/src/VBox/VMM/PGMInternal.h

@@ -2850 +2850 @@
     /** Time spent clearing the newly allocated large pages. */
     STAMPROFILE                 StatClearLargePage;
+    /** The number of times allocating a large pages takes more than the allowed period. */
+    STAMCOUNTER                 StatLargePageOverflow;
     /** pgmPhysIsValidLargePage profiling - R3 */
     STAMPROFILE                 StatR3IsValidLargePage;

trunk/src/VBox/VMM/PGMPhys.cpp

@@ -3928 +3928 @@
         if (u64TimeStamp2 - u64TimeStamp1 > 100)
         {
+            STAM_COUNTER_INC(&pVM->pgm.s.CTX_SUFF(pStats)->StatLargePageOverflow);
             if (++cTimeOut > 10)
             {