Instead of making two 128k request buffers, make ten 64k buffers. Each thread

can currently pin at most one request buffer, and with six OST threads it was
trivial to pin both request buffers and exhaust our RPC handling ability.

diff --git a/lustre/include/linux/lustre_net.h b/lustre/include/linux/lustre_net.h
index 75470a4..139330c 100644 (file)
--- a/lustre/include/linux/lustre_net.h
+++ b/lustre/include/linux/lustre_net.h
@@ -54,7 +54,7 @@
 #define LDLM_CLI_REPLY_PORTAL   18
 
 /* default rpc ring length */
-#define RPC_RING_LENGTH    2
+#define RPC_RING_LENGTH    10
 
 #define SVC_KILLED 1
 #define SVC_EVENT  2

diff --git a/lustre/mds/handler.c b/lustre/mds/handler.c
index 9505a15..ffdefee 100644 (file)
--- a/lustre/mds/handler.c
+++ b/lustre/mds/handler.c
@@ -864,7 +864,7 @@ static int mds_setup(struct obd_device *obddev, obd_count len, void *buf)
                 GOTO(err_put, rc);
         }
 
-        mds->mds_service = ptlrpc_init_svc(128 * 1024,
+        mds->mds_service = ptlrpc_init_svc(64 * 1024,
                                            MDS_REQUEST_PORTAL, MDC_REPLY_PORTAL,                                           "self", mds_handle);
         if (!mds->mds_service) {
                 CERROR("failed to start service\n");

diff --git a/lustre/ost/ost_handler.c b/lustre/ost/ost_handler.c
index 9259b70..79592f6 100644 (file)
--- a/lustre/ost/ost_handler.c
+++ b/lustre/ost/ost_handler.c
@@ -634,7 +634,7 @@ static int ost_setup(struct obd_device *obddev, obd_count len, void *buf)
         if (obddev->obd_namespace == NULL)
                 LBUG();
 
-        ost->ost_service = ptlrpc_init_svc(128 * 1024,
+        ost->ost_service = ptlrpc_init_svc(64 * 1024,
                                            OST_REQUEST_PORTAL, OSC_REPLY_PORTAL,
                                            "self", ost_handle);
         if (!ost->ost_service) {