Commit d1f41b67 authored Mar 05, 2013 by Eric Dumazet Committed by David S. Miller Mar 06, 2013

net: reduce net_rx_action() latency to 2 HZ



We should use time_after_eq() to get maximum latency of two ticks,
instead of three.

Bug added in commit 24f8b238 (net: increase receive packet quantum)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 691b3b7e

net/core/dev.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -4103,7 +4103,7 @@ static void net_rx_action(struct softirq_action *h)
		* Allow this to run for 2 jiffies since which will allow
		* an average latency of 1.5/HZ.
		*/
		if (unlikely(budget <= 0 \|\| time_after(jiffies, time_limit)))
		if (unlikely(budget <= 0 \|\| time_after_eq(jiffies, time_limit)))
		goto softnet_break;

		local_irq_enable();