tel.com>
>Subject: RE: [ovs-dev] [RFC 3/4] dpif-netdev: Use way-associative cache
>
>Hi Yipeng,
>
>Thanks for the patch. Some high level questions/comments.
>
>(1) Am I right in understanding that this patch *only* introduces a new cache
>approach in to DFC to redu
Hi Yipeng,
Thanks for the patch. Some high level questions/comments.
(1) Am I right in understanding that this patch *only* introduces a new cache
approach in to DFC to reduce the collisions?
(2) Why the number of entries per Bucket is set to '8'? With this each
dfc_bucket size is 80
This commit uses a way-associative cache (CD) rather than a simple
single entry hash table for DFC. Experiments show that this design
generally has much higher hit rate.
Since miss is much costly than hit, a CD-like structure that improves
hit rate should help in general.
Signed-off-by: Yipeng
