[ovs-dev] [PATCH v4] ofproto: per-table statistics
Ben Pfaff
blp at nicira.com
Tue Apr 29 14:47:18 UTC 2014
On Tue, Apr 29, 2014 at 06:34:22PM +0900, Simon Horman wrote:
> Add per-table counters. This resolves some short-comings
> in the data provided in a table stats reply message.
>
> * Lookups and matches are calculated based on table
> accesses rather than datapath flow hits and misses.
>
> * Lookups and matches are credited to the table where they
> occurred rather than all being credited to table 0.
>
> These problems were observed when running make check-ryu
> and this patch allows many of its tester.py match checks
> to pass.
I'm not sure that atomic_uint64 is portable to all platforms (notably I
think some 32-bit platforms don't have atomic 64-bit ints). I'd feel
more comfortable using atomic_ulong.
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