net: Use a percpu_counter for orphan_count

Instead of using one atomic_t per protocol, use a percpu_counter
for "orphan_count", to reduce cache line contention on
heavy duty network servers. 

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2008-11-25 21:17:14 -08:00
committed by David S. Miller
parent 1748376b66
commit dd24c00191
8 changed files with 24 additions and 18 deletions

View File

@ -49,7 +49,7 @@ extern int dccp_debug;
extern struct inet_hashinfo dccp_hashinfo;
extern atomic_t dccp_orphan_count;
extern struct percpu_counter dccp_orphan_count;
extern void dccp_time_wait(struct sock *sk, int state, int timeo);