On 16 July 2014 12:15, Joe Stringer wrote:
>
> + ovs_nla_copy_flow(a[OVS_FLOW_ATTR_KEY], a[OVS_FLOW_ATTR_MASK],
> + new_flow->nl_match_cache);
I realised that this needs to be wrapped in a NULL check for
"new_flow->nl_match_cache", in case the skb_alloc() fails.
___
Converting the flow key and mask back into netlink format during flow
dump is fairly expensive. By caching the userspace-provided versions of
these during flow setup, and copying the memory directly during flow
dump, we are able to support up to 33% more flows in the datapath.
Previous top-5 perf
