diff options
| author | NeilBrown <neilb@suse.de> | 2007-03-06 17:11:29 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-03-09 10:50:21 -0800 |
| commit | 97f35487312eb92de7f3dc5f44779b6a2bb84e67 (patch) | |
| tree | 3a629a9d56c0611160a37dc76ebab121506e1f90 /net | |
| parent | 5edd24258c5eae0a5cadc612ea1d6e13ec54e536 (diff) | |
Avoid using nfsd process pools on SMP machines.
process-pools have real benefits for NUMA, but on SMP
machines they only work if network interface interrupts
go to all CPUs (via round-robin or multiple nics). This is
not always the case, so disable the pools in this case until
a better solution is developped.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff .prev/net/sunrpc/svc.c ./net/sunrpc/svc.c
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/svc.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index c1f878131ac..39fada1cee4 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -79,7 +79,11 @@ svc_pool_map_choose_mode(void) * x86_64 kernel on Xeons. In this case we * want to divide the pools on cpu boundaries. */ - return SVC_POOL_PERCPU; + /* actually, unless your IRQs round-robin nicely, + * this turns out to be really bad, so just + * go GLOBAL for now until a better fix can be developped + */ + return SVC_POOL_GLOBAL; } /* default: one global pool */ |