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Groups > linux.kernel > #1281447
| From | Jason Wang <jasowang@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH net-next 3/3] vhost_net: basic polling support |
| Date | 2015-12-02 06:10 +0100 |
| Message-ID | <qB7PX-2KY-5@gated-at.bofh.it> (permalink) |
| References | <qyCwW-2WA-7@gated-at.bofh.it> <qyCwX-2WA-27@gated-at.bofh.it> <qAubU-2pN-27@gated-at.bofh.it> <qALw5-5g0-1@gated-at.bofh.it> <qAUpH-2rO-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 12/01/2015 10:43 PM, Michael S. Tsirkin wrote: > On Tue, Dec 01, 2015 at 01:17:49PM +0800, Jason Wang wrote: >> >> On 11/30/2015 06:44 PM, Michael S. Tsirkin wrote: >>> On Wed, Nov 25, 2015 at 03:11:29PM +0800, Jason Wang wrote: >>>>> This patch tries to poll for new added tx buffer or socket receive >>>>> queue for a while at the end of tx/rx processing. The maximum time >>>>> spent on polling were specified through a new kind of vring ioctl. >>>>> >>>>> Signed-off-by: Jason Wang <jasowang@redhat.com> >>> One further enhancement would be to actually poll >>> the underlying device. This should be reasonably >>> straight-forward with macvtap (especially in the >>> passthrough mode). >>> >>> >> Yes, it is. I have some patches to do this by replacing >> skb_queue_empty() with sk_busy_loop() but for tap. > We probably don't want to do this unconditionally, though. > >> Tests does not show >> any improvement but some regression. > Did you add code to call sk_mark_napi_id on tap then? > sk_busy_loop won't do anything useful without. Yes I did. Probably something wrong elsewhere. > >> Maybe it's better to test macvtap. > Same thing ... > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [PATCH net-next 3/3] vhost_net: basic polling support Jason Wang <jasowang@redhat.com> - 2015-12-01 06:20 +0100
Re: [PATCH net-next 3/3] vhost_net: basic polling support "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-01 15:50 +0100
Re: [PATCH net-next 3/3] vhost_net: basic polling support Jason Wang <jasowang@redhat.com> - 2015-12-02 06:10 +0100
Re: [PATCH net-next 3/3] vhost_net: basic polling support "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-02 13:40 +0100
Re: [PATCH net-next 3/3] vhost_net: basic polling support Jason Wang <jasowang@redhat.com> - 2015-12-04 03:30 +0100
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