Changeset 30382 in vbox for trunk/src/VBox

Timestamp:

Jun 23, 2010 9:23:34 AM (15 years ago)

Author:

vboxsync

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

62990

Message:

SATA: Always raise an interrupt after task completion; delaying this (interrupt coalescing) increases latency and has a significant
impact on performance (see #5071)

File:

• trunk/src/VBox/Devices/Storage/DevAHCI.cpp (modified) (1 diff)

trunk/src/VBox/Devices/Storage/DevAHCI.cpp

@@ -4940 +4940 @@
 #endif
 
-        if (!cOutstandingTasks)
-            ahciSendSDBFis(pAhciPort, 0, true);
+        /* Always raise an interrupt after task completion; delaying
+         * this (interrupt coalescing) increases latency and has a significant
+         * impact on performance (see #5071)
+         */
+        ahciSendSDBFis(pAhciPort, 0, true);
     }
     else