diff options
author | 2020-11-27 20:15:17 +0100 | |
---|---|---|
committer | 2020-12-18 17:20:28 +0000 | |
commit | 8b60fb0fe6e29aac1847c0b381c0f84165b27b61 (patch) | |
tree | 0d805a148109bad0906a3570b2d22767ec50f95d /src/plugins/perfmon/intel/bundle/load_blocks.c | |
parent | f5b27cbcc7cae5279aac512f805be73591f58eaa (diff) |
perfmon: new perfmon plugin
Type: feature
Change-Id: I2c14f82393d11fc05c6d229f5c58603ab5c0f14d
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/plugins/perfmon/intel/bundle/load_blocks.c')
-rw-r--r-- | src/plugins/perfmon/intel/bundle/load_blocks.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/plugins/perfmon/intel/bundle/load_blocks.c b/src/plugins/perfmon/intel/bundle/load_blocks.c new file mode 100644 index 00000000000..d02ef3a0555 --- /dev/null +++ b/src/plugins/perfmon/intel/bundle/load_blocks.c @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2020 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/vnet.h> +#include <perfmon/perfmon.h> +#include <perfmon/intel/core.h> + +static u8 * +format_load_blocks (u8 *s, va_list *args) +{ + perfmon_node_stats_t *ns = va_arg (*args, perfmon_node_stats_t *); + int row = va_arg (*args, int); + + switch (row) + { + case 0: + s = format (s, "%12lu", ns->n_calls); + break; + case 1: + s = format (s, "%12lu", ns->n_packets); + break; + case 2: + s = format (s, "%9.2f", (f64) ns->value[0] / ns->n_calls); + break; + case 3: + s = format (s, "%9.2f", (f64) ns->value[1] / ns->n_calls); + break; + case 4: + s = format (s, "%9.2f", (f64) ns->value[2] / ns->n_calls); + break; + } + return s; +} + +PERFMON_REGISTER_BUNDLE (load_blocks) = { + .name = "load-blocks", + .description = "load operations blocked due to various uarch reasons", + .source = "intel-core", + .type = PERFMON_BUNDLE_TYPE_NODE, + .events[0] = INTEL_CORE_E_LD_BLOCKS_STORE_FORWARD, + .events[1] = INTEL_CORE_E_LD_BLOCKS_NO_SR, + .events[2] = INTEL_CORE_E_LD_BLOCKS_PARTIAL_ADDRESS_ALIAS, + .n_events = 3, + .format_fn = format_load_blocks, + .column_headers = PERFMON_STRINGS ("Calls", "Packets", "[1]", "[2]", "[3]"), + .footer = "Per node call statistics:\n" + "[1] Loads blocked due to overlapping with a preceding store that " + "cannot be forwarded.\n" + "[2] The number of times that split load operations are " + "temporarily blocked because\n" + " all resources for handling the split accesses are in use\n" + "[3] False dependencies in Memory Order Buffer (MOB) due to " + "partial compare on address.\n", +}; |