passt: Align pkt_buf to PAGE_SIZE (start and size), try to fit in huge pages

If transparent huge pages are available, madvise() will do the trick.

While at it, decrease EPOLL_EVENTS for the main loop from 10 to 8,
for slightly better socket fairness.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/util.h b/util.h
index 2e7699c..6402f41 100644
--- a/util.h
+++ b/util.h
@@ -25,6 +25,7 @@ void debug(const char *format, ...);
 #endif
 
 #define DIV_ROUND_UP(n, d)	(((n) + (d) - 1) / (d))
+#define ROUND_DOWN(x, y)	((x) & ~((y) - 1))
 
 #define SWAP(a, b)							\
 	do {								\