Re: [PATCHv3 net-next 0/8] enable/disable zero copy tx dynamically

2012-11-02 Thread David Miller
From: "Michael S. Tsirkin" Date: Thu, 1 Nov 2012 21:16:17 +0200 > > tun supports zero copy transmit since > 0690899b4d4501b3505be069b9a687e68ccbe15b, > however you can only enable this mode if you know your workload does not > trigger heavy guest to host/host to guest traffic - otherwise you >

[PATCHv3 net-next 0/8] enable/disable zero copy tx dynamically

2012-11-01 Thread Michael S. Tsirkin
tun supports zero copy transmit since 0690899b4d4501b3505be069b9a687e68ccbe15b, however you can only enable this mode if you know your workload does not trigger heavy guest to host/host to guest traffic - otherwise you get a (minor) performance regression. This patchset addresses this problem by n