[ovs-dev] [PATCH v4] ofproto: per-table statistics

[YAMAMOTO Takashi]

> 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.

this is not the first use of them.  cf. udpif::n_flows

if you want to avoid the use of them, how about removing them
from ovs-atomic.h?

YAMAMOTO Takashi