On 06/29/2015 12:50 PM, Jason Wang wrote: > > On 06/18/2015 06:20 PM, Michael S. Tsirkin wrote: >> Needs more testing. Anyone see anything wrong with this? >> >> Signed-off-by: Michael S. Tsirkin <m...@redhat.com> >> --- >> drivers/net/macvtap.c | 2 +- >> drivers/net/tun.c | 2 +- >> 2 files changed, 2 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c >> index 928f3f4..80e87e4 100644 >> --- a/drivers/net/macvtap.c >> +++ b/drivers/net/macvtap.c >> @@ -610,7 +610,7 @@ static inline struct sk_buff *macvtap_alloc_skb(struct >> sock *sk, size_t prepad, >> linear = len; >> >> skb = sock_alloc_send_pskb(sk, prepad + linear, len - linear, noblock, >> - err, 0); >> + err, 1); >> if (!skb) >> return NULL; >> >> diff --git a/drivers/net/tun.c b/drivers/net/tun.c >> index cb376b2d..8f2f1e5 100644 >> --- a/drivers/net/tun.c >> +++ b/drivers/net/tun.c >> @@ -1069,7 +1069,7 @@ static struct sk_buff *tun_alloc_skb(struct tun_file >> *tfile, >> linear = len; >> >> skb = sock_alloc_send_pskb(sk, prepad + linear, len - linear, noblock, >> - &err, 0); >> + &err, 1); >> if (!skb) >> return ERR_PTR(err); >> > Have a round of netperf testing in tun and ixgbe, can see improvement on > packet size 512 and 2048. > > TX: > size/session/+thu%/+normalize% > 64/ 1/ 0%/ 0% > 64/ 4/ 0%/ 0% > 512/ 1/ +6%/ +7% > 512/ 4/ +2%/ +2% > 2048/ 1/ +24%/ +50% > 2048/ 4/ 0%/ +6% > 16384/ 1/ 0%/ -6% > 16384/ 4/ 0%/ -5% > 65535/ 1/ 0%/ -4% > 65535/ 4/ 0%/ -1% > RX: > size/session/+thu%/+normalize% > 64/ 1/ -5%/ -4% > 64/ 4/ -2%/ -1% > 512/ 1/ -7%/ -8% > 512/ 4/ 0%/ 0% > 2048/ 1/ +4%/ +7% > 2048/ 4/ 0%/ +2% > 16384/ 1/ 0%/ +2% > 16384/ 4/ 0%/ +13% > 65535/ 1/ 0%/ 0% > 65535/ 4/ 0%/ -1% > TCP_RR: > size/session/+thu%/+normalize% > 1/ 25/ 0%/ 0% > 1/ 50/ 0%/ 0% > 64/ 25/ 0%/ -1% > 64/ 50/ 0%/ 0% > 256/ 25/ 0%/ 0% > 256/ 50/ 0%/ 0% >
Done another test through pktgen in guest with my tx interrupt patches, see little regression with this patch: size/before(pps)/after(pps) 64/578689/573004 8192/332698/322733 16384/241497/237326 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
