Index: sys/sys/pcpu.h
===================================================================
--- sys/sys/pcpu.h	(revision 338128)
+++ sys/sys/pcpu.h	(working copy)
@@ -219,7 +219,7 @@
 #endif
 #define	curvidata	PCPU_GET(vidata)
 
-#define UMA_PCPU_ALLOC_SIZE		PAGE_SIZE
+#define UMA_PCPU_ALLOC_SIZE		(PAGE_SIZE * 16)
 
 #ifdef CTASSERT
 #if defined(__i386__) || defined(__amd64__)