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Vector Packet Processing
inst_and_clock.c
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1 /*
2  * Copyright (c) 2020 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include <vnet/vnet.h>
17 #include <perfmon/perfmon.h>
18 #include <perfmon/intel/core.h>
19 
20 static u8 *
21 format_inst_and_clock (u8 *s, va_list *args)
22 {
23  perfmon_node_stats_t *ns = va_arg (*args, perfmon_node_stats_t *);
24  int row = va_arg (*args, int);
25 
26  switch (row)
27  {
28  case 0:
29  s = format (s, "%lu", ns->n_calls);
30  break;
31  case 1:
32  s = format (s, "%lu", ns->n_packets);
33  break;
34  case 2:
35  s = format (s, "%.2f", (f64) ns->n_packets / ns->n_calls);
36  break;
37  case 3:
38  s = format (s, "%.2f", (f64) ns->value[1] / ns->n_packets);
39  break;
40  case 4:
41  s = format (s, "%.2f", (f64) ns->value[0] / ns->n_packets);
42  break;
43  case 5:
44  s = format (s, "%.2f", (f64) ns->value[0] / ns->value[1]);
45  break;
46  }
47  return s;
48 }
49 
50 PERFMON_REGISTER_BUNDLE (inst_and_clock) = {
51  .name = "inst-and-clock",
52  .description = "instructions/packet, cycles/packet and IPC",
53  .source = "intel-core",
55  .events[0] = INTEL_CORE_E_INST_RETIRED_ANY_P,
56  .events[1] = INTEL_CORE_E_CPU_CLK_UNHALTED_THREAD_P,
57  .events[2] = INTEL_CORE_E_CPU_CLK_UNHALTED_REF_TSC,
58  .n_events = 3,
59  .format_fn = format_inst_and_clock,
60  .column_headers = PERFMON_STRINGS ("Calls", "Packets", "Packets/Call",
61  "Clocks/Packet", "Instructions/Packet",
62  "IPC"),
63 };
perfmon_node_stats_t
Definition: perfmon.h:140
perfmon_node_stats_t::n_packets
u64 n_packets
Definition: perfmon.h:144
PERFMON_BUNDLE_TYPE_NODE
@ PERFMON_BUNDLE_TYPE_NODE
Definition: perfmon.h:31
perfmon_node_stats_t::n_calls
u64 n_calls
Definition: perfmon.h:143
format_inst_and_clock
static u8 * format_inst_and_clock(u8 *s, va_list *args)
Definition: inst_and_clock.c:21
PERFMON_STRINGS
#define PERFMON_STRINGS(...)
Definition: perfmon.h:226
f64
double f64
Definition: types.h:142
format
description fragment has unexpected format
Definition: map.api:433
core.h
u8
unsigned char u8
Definition: types.h:56
perfmon_node_stats_t::value
u64 value[PERF_MAX_EVENTS]
Definition: perfmon.h:149
vnet.h
PERFMON_REGISTER_BUNDLE
PERFMON_REGISTER_BUNDLE(inst_and_clock)