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authorEric Dumazet <dada1@cosmosbay.com>2007-03-27 13:58:31 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:28:19 -0700
commit4103f8cd5c1f260d674a7b426ed221812de54d47 (patch)
tree28649757907dd77b53a8c16533c963c43fea4be0 /net/ipv4/xfrm4_state.c
parent73417f617a93cf30342c3ea41abc38927bd467aa (diff)
[TCP]: tcp_memory_pressure and tcp_socket are__read_mostly candidates
tcp_memory_pressure and tcp_socket currently share a cache line with tcp_memory_allocated, tcp_sockets_allocated. (Very hot cache line) It makes sense to declare these variables as __read_mostly, to avoid false sharing on SMP. ffffffff8081d9c0 B tcp_orphan_count ffffffff8081d9c4 B tcp_memory_allocated ffffffff8081d9c8 B tcp_sockets_allocated ffffffff8081d9cc B tcp_memory_pressure ffffffff8081d9d0 b tcp_md5sig_users ffffffff8081d9d8 b tcp_md5sig_pool ffffffff8081d9e0 b warntime.31570 ffffffff8081d9e8 b tcp_socket Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/xfrm4_state.c')
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