[win-pv-devel] When unmask event ?

[Martin Cerveny <martin@xxxxxxxxx>]

Hello.

I noticed if the event is unmasked before processing requests it is 
triggered earlier (after 3-4 request inside FrontendNotifyResponses() 
processing). I think that it can improve response time after idle channel 
(crystalmark does not show any measurable change in my results).
Is it possible ?

Thanks for opinion, Martin Cerveny

diff --git a/src/xenvbd/notifier.c b/src/xenvbd/notifier.c
index 36e2ba1..1d0e296 100644
--- a/src/xenvbd/notifier.c
+++ b/src/xenvbd/notifier.c
@@ -125,12 +125,12 @@ NotifierDpc(
     if (!Notifier->Connected)
         return;

-    FrontendNotifyResponses(Notifier->Frontend);
-
     XENBUS_EVTCHN(Unmask,
                   Notifier->EvtchnInterface,
                   Notifier->Channel,
                   FALSE);
+
+    FrontendNotifyResponses(Notifier->Frontend);
 }

 NTSTATUS


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