| commit | ca4ec90b31d1ecf01087c607933cf792057bc8bf | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Thu Jun 13 07:58:30 2013 -0700 |
| committer | David S. Miller <davem@davemloft.net> | Thu Jun 13 17:17:02 2013 -0700 |
| tree | f629cdb10f0eafc1b1979daf34698db1d90a08fb | |
| parent | 5f121b9a83b499a61ed44e5ba619c7de8f7271ad [diff] |
htb: reorder struct htb_class fields for performance htb_class structures are big, and source of false sharing on SMP. By carefully splitting them in two parts, we can improve performance. I got 9 % performance increase on a 24 threads machine, with 200 concurrent netperf in TCP_RR mode, using a HTB hierarchy of 4 classes. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>