From: Amos Kong <akong@xxxxxxxxxx> Date: Thu, 09 Jun 2011 07:46:06 +0800 > Perf shows a relatively high rate (about 8%) race in > spin_lock_irqsave() when doing netperf between external host and > guest. It's mainly becuase the lock contention between the > tun_do_read() and tun_xmit_skb(), so this patch do not put self into > waitqueue to reduce this kind of race. After this patch, it drops to > 4%. > > Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx> > Signed-off-by: Amos Kong <akong@xxxxxxxxxx> Applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
