/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
CFS_MODULE_PARM(timeout, "i", int, 0644,
"timeout (seconds)");
-static int ntx = 256;
+/* Number of threads in each scheduler pool which is percpt,
+ * we will estimate reasonable value based on CPUs if it's set to zero. */
+static int nscheds;
+CFS_MODULE_PARM(nscheds, "i", int, 0444,
+ "number of threads in each scheduler pool");
+
+/* NB: this value is shared by all CPTs, it can grow at runtime */
+static int ntx = 512;
CFS_MODULE_PARM(ntx, "i", int, 0444,
- "# of message descriptors");
+ "# of message descriptors allocated for each pool");
-static int credits = 64;
+/* NB: this value is shared by all CPTs */
+static int credits = 256;
CFS_MODULE_PARM(credits, "i", int, 0444,
"# concurrent sends");
CFS_MODULE_PARM(map_on_demand, "i", int, 0444,
"map on demand");
+/* NB: this value is shared by all CPTs, it can grow at runtime */
static int fmr_pool_size = 512;
CFS_MODULE_PARM(fmr_pool_size, "i", int, 0444,
- "size of the fmr pool (>= ntx / 4)");
+ "size of fmr pool on each CPT (>= ntx / 4)");
+/* NB: this value is shared by all CPTs, it can grow at runtime */
static int fmr_flush_trigger = 384;
CFS_MODULE_PARM(fmr_flush_trigger, "i", int, 0444,
- "# dirty FMRs that triggers pool flush");
+ "# dirty FMRs that triggers pool flush");
static int fmr_cache = 1;
CFS_MODULE_PARM(fmr_cache, "i", int, 0444,
- "non-zero to enable FMR caching");
+ "non-zero to enable FMR caching");
+/* NB: this value is shared by all CPTs, it can grow at runtime */
static int pmr_pool_size = 512;
CFS_MODULE_PARM(pmr_pool_size, "i", int, 0444,
- "size of the MR cache pmr pool");
+ "size of MR cache pmr pool on each CPT");
/*
* 0: disable failover
.kib_fmr_cache = &fmr_cache,
.kib_pmr_pool_size = &pmr_pool_size,
.kib_require_priv_port = &require_privileged_port,
- .kib_use_priv_port = &use_privileged_port
+ .kib_use_priv_port = &use_privileged_port,
+ .kib_nscheds = &nscheds
};
#if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM