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authorGreg Banks <gnb@melbourne.sgi.com>2006-10-02 02:18:01 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-02 07:57:20 -0700
commitbfd241600a3b0db4fe43c859f1460d0a958d924a (patch)
tree7f04604adee7249e686d1db0cac93f1fee8bc5b6 /include/linux/sunrpc/svc.h
parenteec09661dc82e90a31051d045a94026a91aceb82 (diff)
[PATCH] knfsd: make rpc threads pools numa aware
Actually implement multiple pools. On NUMA machines, allocate a svc_pool per NUMA node; on SMP a svc_pool per CPU; otherwise a single global pool. Enqueue sockets on the svc_pool corresponding to the CPU on which the socket bh is run (i.e. the NIC interrupt CPU). Threads have their cpu mask set to limit them to the CPUs in the svc_pool that owns them. This is the patch that allows an Altix to scale NFS traffic linearly beyond 4 CPUs and 4 NICs. Incorporates changes and feedback from Neil Brown, Trond Myklebust, and Christoph Hellwig. Signed-off-by: Greg Banks <gnb@melbourne.sgi.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/sunrpc/svc.h')
-rw-r--r--include/linux/sunrpc/svc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index f2eeb833e7d8..4ebcdf91f3b3 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -386,5 +386,6 @@ int svc_process(struct svc_rqst *);
int svc_register(struct svc_serv *, int, unsigned short);
void svc_wake_up(struct svc_serv *);
void svc_reserve(struct svc_rqst *rqstp, int space);
+struct svc_pool * svc_pool_for_cpu(struct svc_serv *serv, int cpu);
#endif /* SUNRPC_SVC_H */