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1/*
2 * Copyright (C) 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17syntax = "proto2";
18package perfetto.protos;
19
20import "protos/perfetto/common/sys_stats_counters.proto";
21
22// Various Linux system stat counters from /proc.
23// The fields in this message can be reported at different rates and with
24// different granularity. See sys_stats_config.proto.
25message SysStats {
26  // Counters from /proc/meminfo. Values are in KB.
27  message MeminfoValue {
28    optional MeminfoCounters key = 1;
29    optional uint64 value = 2;
30  };
31  repeated MeminfoValue meminfo = 1;
32
33  // Counter from /proc/vmstat. Units are often pages, not KB.
34  message VmstatValue {
35    optional VmstatCounters key = 1;
36    optional uint64 value = 2;
37  };
38  repeated VmstatValue vmstat = 2;
39
40  // Times in each mode, since boot. Unit: nanoseconds.
41  message CpuTimes {
42    optional uint32 cpu_id = 1;
43
44    // Time spent in user mode.
45    optional uint64 user_ns = 2;
46
47    // Time spent in user mode (low prio).
48    optional uint64 user_ice_ns = 3;
49
50    // Time spent in system mode.
51    optional uint64 system_mode_ns = 4;
52
53    // Time spent in the idle task.
54    optional uint64 idle_ns = 5;
55
56    // Time spent waiting for I/O.
57    optional uint64 io_wait_ns = 6;
58
59    // Time spent servicing interrupts.
60    optional uint64 irq_ns = 7;
61
62    // Time spent servicing softirqs.
63    optional uint64 softirq_ns = 8;
64  }
65  // One entry per cpu.
66  repeated CpuTimes cpu_stat = 3;
67
68  // Num processes forked since boot.
69  // Populated only if FORK_COUNT in config.stat_counters.
70  optional uint64 num_forks = 4;
71
72  message InterruptCount {
73    optional int32 irq = 1;
74    optional uint64 count = 2;
75  }
76
77  // Number of interrupts, broken by IRQ number.
78  // Populated only if IRQ_COUNTS in config.stat_counters.
79
80  // Total num of irqs serviced since boot.
81  optional uint64 num_irq_total = 5;
82  repeated InterruptCount num_irq = 6;
83
84  // Number of softirqs, broken by softirq number.
85  // Populated only if SOFTIRQ_COUNTS in config.stat_counters.
86
87  // Total num of softirqs since boot.
88  optional uint64 num_softirq_total = 7;
89
90  // Per-softirq count.
91  repeated InterruptCount num_softirq = 8;
92
93  // The time at which we finish collecting this set of samples;
94  // the top-level packet timestamp is the time at which
95  // we begin collection.
96  optional uint64 collection_end_timestamp = 9;
97
98  // Frequencies for /sys/class/devfreq/ entries in kHz.
99  message DevfreqValue {
100    optional string key = 1;
101    optional uint64 value = 2;
102  };
103
104  // One entry per device.
105  repeated DevfreqValue devfreq = 10;
106}
107