Changeset 93631 in vbox for trunk/src/VBox/VMM/include

Timestamp:

Feb 7, 2022 12:45:08 AM (3 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

149776

Message:

VMM/PDMNetShaper: Don't start the unchoke thread unless there are are one or more bandwidth groups configured. Make the unchoke thread wait on an event sempahore so it can be woken up when needed and stop wasting cpu cycles and battery on lots of unnecessary wakups. Use a timer (real time clock) to wake up the unchoke timer when needed. bugref:10093 bugref:5582

File:

• trunk/src/VBox/VMM/include/PDMInternal.h (modified) (2 diffs)

trunk/src/VBox/VMM/include/PDMInternal.h

@@ -1514 +1514 @@
     bool                            fStateLoaded;
     /** Alignment padding. */
-    bool                            afPadding[3];
+    bool                            afPadding1[3];
 
     /** The tracing ID of the next device instance.
@@ -1544 +1544 @@
     /** @name Network Shaper
      * @{ */
-    /** Pending TX thread. */
-    PPDMTHREAD                      pNsTxThread;
-    uint32_t                        au32Padding[1+8];
+    /** Thread that processes choked filter drivers after
+     * the a PDM_NETSHAPER_MAX_LATENCY period has elapsed. */
+    PPDMTHREAD                      pNsUnchokeThread;
+    /** Semaphore that the TX thread waits on. */
+    RTSEMEVENT                      hNsUnchokeEvt;
+    /** Timer handle for waking up pNsUnchokeThread. */
+    TMTIMERHANDLE                   hNsUnchokeTimer;
+    /** Indicates whether the unchoke timer has been armed already or not. */
+    bool volatile                   fNsUnchokeTimerArmed;
+    /** Align aNsGroups on a cacheline.   */
+    bool                            afPadding2[19];
     /** Number of network shaper groups.
      * @note Marked volatile to prevent re-reading after validation. */