[ovs-dev] [PATCH ovn] northd: avoid memory reallocation while building ACL and QoS rules

Dumitru Ceara dceara at redhat.com
Fri Jun 18 19:49:01 UTC 2021

On 6/4/21 10:00 PM, Dan Williams wrote:
> Inspried by:
> 3b6362d64e86b northd: Avoid memory reallocation while building lb rules.
> Signed-off-by: Dan Williams <dcbw at redhat.com>
> ---
> NOTE: this is driven by visual inspection not perf data. But it
> shouldn't be worse than current code and should be better for
> large numbers of ACLs I think.

The changes look OK to me.

Acked-by: Dumitru Ceara <dceara at redhat.com>

However, I wonder how many such optimizations we can implement without
affecting maintainability.  Mark suggested an approach [0].

CC-ing Ilya too, maybe he has some more suggestions, maybe there's a way
to better use the OVS dynamic strings.


[0] https://mail.openvswitch.org/pipermail/ovs-dev/2021-June/384043.html

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