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authorEric Dumazet <edumazet@google.com>2013-06-13 18:58:30 +0400
committerDavid S. Miller <davem@davemloft.net>2013-06-14 04:17:02 +0400
commitca4ec90b31d1ecf01087c607933cf792057bc8bf (patch)
treef629cdb10f0eafc1b1979daf34698db1d90a08fb /drivers/net/ethernet/broadcom/bcm63xx_enet.c
parent5f121b9a83b499a61ed44e5ba619c7de8f7271ad (diff)
downloadlinux-ca4ec90b31d1ecf01087c607933cf792057bc8bf.tar.xz
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>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bcm63xx_enet.c')
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