| commit | f0490980a152958d25ce9762bfb296d8fd4c5512 | |
| author | Eric Dumazet <dada1@cosmosbay.com> | |
| Fri, 8 Dec 2006 08:08:43 +0000 (8 00:08 -0800) | ||
| committer | David S. Miller <davem@sunset.davemloft.net> | |
| Sat, 9 Dec 2006 01:19:29 +0000 (8 17:19 -0800) | ||
| tree | b5f505b4bfbc770c1e15d7177fec4944e2df9c28 | treesnapshot (tar.gz zip) |
| parent | 47bbec0282cce900f16a8dd6397260e076400edb | commitdiff |
[NET]: Force a cache line split in hh_cache in SMP.
hh_lock was converted from rwlock to seqlock by Stephen.
To have a 100% benefit of this change, I suggest to place read mostly fields
of hh_cache in a separate cache line, because hh_refcnt may be changed quite
frequently on some busy machines.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hh_lock was converted from rwlock to seqlock by Stephen.
To have a 100% benefit of this change, I suggest to place read mostly fields
of hh_cache in a separate cache line, because hh_refcnt may be changed quite
frequently on some busy machines.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| include/linux/netdevice.h | diffblobblamehistory |