Changeset 88673 in vbox for trunk/src/VBox/Devices/Audio/DevSB16.cpp

Timestamp:

Apr 23, 2021 12:42:47 PM (4 years ago)

Author:

vboxsync

Message:

Audio/SB16: Added a tiny bit of profiling.

File:

• trunk/src/VBox/Devices/Audio/DevSB16.cpp (modified) (5 diffs)

trunk/src/VBox/Devices/Audio/DevSB16.cpp

@@ -276 +276 @@
     uint8_t mixer_nreg;
     uint8_t mixer_regs[256];
+
+#ifdef VBOX_WITH_STATISTICS
+    STAMPROFILE             StatTimerIO;
+    STAMCOUNTER             StatBytesRead;
+#endif
 } SB16STATE;
 
@@ -1643 +1648 @@
     }
 
+    STAM_REL_COUNTER_ADD(&pThis->StatBytesRead, copy);
+
     uint32_t cbWritten;
     int rc = sb16WriteAudio(pThis, pStream, uChannel, off, cb, copy, &cbWritten);
@@ -1712 +1719 @@
 static DECLCALLBACK(void) sb16TimerIO(PPDMDEVINS pDevIns, TMTIMERHANDLE hTimer, void *pvUser)
 {
+    RT_NOREF(pvUser);
+
     PSB16STATE pThis = PDMDEVINS_2_DATA(pDevIns, PSB16STATE);
-    Assert(hTimer == pThis->hTimerIO); RT_NOREF(pvUser);
+    STAM_PROFILE_START(&pThis->StatTimerIO, a);
+    Assert(hTimer == pThis->hTimerIO);
 
     uint64_t cTicksNow     = PDMDevHlpTimerGet(pDevIns, hTimer);
@@ -1743 +1753 @@
         PDMDevHlpTimerSet(pDevIns, hTimer, cTicksNow + cTicks);
     }
+
+    STAM_PROFILE_STOP(&pThis->StatTimerIO, a);
 }
 
@@ -2887 +2899 @@
     }
 #endif
+
+    /*
+     * Register statistics.
+     */
+# ifdef VBOX_WITH_STATISTICS
+    PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTimerIO,   STAMTYPE_PROFILE, "Timer",     STAMUNIT_TICKS_PER_CALL, "Profiling sb16TimerIO.");
+    PDMDevHlpSTAMRegister(pDevIns, &pThis->StatBytesRead, STAMTYPE_COUNTER, "BytesRead", STAMUNIT_BYTES,          "Bytes read from SB16 emulation.");
+# endif
 
     return VINF_SUCCESS;