Updating the async polling interval from 50ms to 1ms for better performance.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Tian Feng <feng.t...@intel.com>
---
 MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h 
b/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
index 729a8c0..9927f79 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
@@ -67,9 +67,9 @@ typedef struct _USB_DEV_CONTEXT      USB_DEV_CONTEXT;
 #define XHC_POLL_DELAY               (1000)
 //
 // XHC async transfer timer interval, set by experience.
-// The unit is 100us, takes 50ms as interval.
+// The unit is 100us, takes 1ms as interval.
 //
-#define XHC_ASYNC_TIMER_INTERVAL     EFI_TIMER_PERIOD_MILLISECONDS(50)
+#define XHC_ASYNC_TIMER_INTERVAL     EFI_TIMER_PERIOD_MILLISECONDS(1)
 
 //
 // XHC raises TPL to TPL_NOTIFY to serialize all its operations
-- 
1.9.5.msysgit.0


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