| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| syntax = "proto2"; |
| package perfetto.protos; |
| |
| import "protos/perfetto/common/sys_stats_counters.proto"; |
| |
| // Various Linux system stat counters from /proc. |
| // The fields in this message can be reported at different rates and with |
| // different granularity. See sys_stats_config.proto. |
| message SysStats { |
| // Counters from /proc/meminfo. Values are in KB. |
| message MeminfoValue { |
| optional MeminfoCounters key = 1; |
| optional uint64 value = 2; |
| }; |
| repeated MeminfoValue meminfo = 1; |
| |
| // Counter from /proc/vmstat. Units are often pages, not KB. |
| message VmstatValue { |
| optional VmstatCounters key = 1; |
| optional uint64 value = 2; |
| }; |
| repeated VmstatValue vmstat = 2; |
| |
| // Times in each mode, since boot. Unit: nanoseconds. |
| message CpuTimes { |
| optional uint32 cpu_id = 1; |
| |
| // Time spent in user mode. |
| optional uint64 user_ns = 2; |
| |
| // Time spent in user mode (low prio). |
| optional uint64 user_nice_ns = 3; |
| |
| // Time spent in system mode. |
| optional uint64 system_mode_ns = 4; |
| |
| // Time spent in the idle task. |
| optional uint64 idle_ns = 5; |
| |
| // Time spent waiting for I/O. |
| optional uint64 io_wait_ns = 6; |
| |
| // Time spent servicing interrupts. |
| optional uint64 irq_ns = 7; |
| |
| // Time spent servicing softirqs. |
| optional uint64 softirq_ns = 8; |
| } |
| // One entry per cpu. |
| repeated CpuTimes cpu_stat = 3; |
| |
| // Num processes forked since boot. |
| // Populated only if FORK_COUNT in config.stat_counters. |
| optional uint64 num_forks = 4; |
| |
| message InterruptCount { |
| optional int32 irq = 1; |
| optional uint64 count = 2; |
| } |
| |
| // Number of interrupts, broken by IRQ number. |
| // Populated only if IRQ_COUNTS in config.stat_counters. |
| |
| // Total num of irqs serviced since boot. |
| optional uint64 num_irq_total = 5; |
| repeated InterruptCount num_irq = 6; |
| |
| // Number of softirqs, broken by softirq number. |
| // Populated only if SOFTIRQ_COUNTS in config.stat_counters. |
| |
| // Total num of softirqs since boot. |
| optional uint64 num_softirq_total = 7; |
| |
| // Per-softirq count. |
| repeated InterruptCount num_softirq = 8; |
| |
| // The time at which we finish collecting this set of samples; |
| // the top-level packet timestamp is the time at which |
| // we begin collection. |
| optional uint64 collection_end_timestamp = 9; |
| |
| // Frequencies for /sys/class/devfreq/ entries in kHz. |
| message DevfreqValue { |
| optional string key = 1; |
| optional uint64 value = 2; |
| }; |
| |
| // One entry per device. |
| repeated DevfreqValue devfreq = 10; |
| |
| // Cpu current frequency from |
| // /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq in kHz. |
| // One entry per cpu. Report 0 for offline cpu |
| repeated uint32 cpufreq_khz = 11; |
| |
| message BuddyInfo { |
| optional string node = 1; |
| optional string zone = 2; |
| repeated uint32 order_pages = 3; |
| } |
| // One entry per each node's zones. |
| repeated BuddyInfo buddy_info = 12; |
| |
| // Counters from /proc/diskstats. |
| message DiskStat { |
| optional string device_name = 1; |
| optional uint64 read_sectors = 2; |
| optional uint64 read_time_ms = 3; |
| optional uint64 write_sectors = 4; |
| optional uint64 write_time_ms = 5; |
| optional uint64 discard_sectors = 6; |
| optional uint64 discard_time_ms = 7; |
| optional uint64 flush_count = 8; |
| optional uint64 flush_time_ms = 9; |
| } |
| // One entry per disk device. |
| repeated DiskStat disk_stat = 13; |
| |
| // Reading from /proc/pressure/*. |
| message PsiSample { |
| // Type of resource that may have exhibited pressure stalls. |
| // * _SOME indicates some resource tasks stalled. |
| // * _FULL indicates all non-idle resource tasks stalled simultaneously. |
| enum PsiResource { |
| PSI_RESOURCE_UNSPECIFIED = 0; |
| PSI_RESOURCE_CPU_SOME = 1; |
| PSI_RESOURCE_CPU_FULL = 2; |
| PSI_RESOURCE_IO_SOME = 3; |
| PSI_RESOURCE_IO_FULL = 4; |
| PSI_RESOURCE_MEMORY_SOME = 5; |
| PSI_RESOURCE_MEMORY_FULL = 6; |
| } |
| optional PsiResource resource = 1; |
| |
| // Total absolute stall time (in nanos) for a given resource. |
| // While PSI readings are in micros, we store in nanos for consistency with |
| // most other time-based counters. |
| optional uint64 total_ns = 2; |
| |
| // Note that /proc/pressure/* exposes historical average utilization values |
| // (as a %), but we don't yet sample those. They could easily be added as |
| // additional fields should the total stall time readings be insufficient. |
| } |
| // One entry per PsiResource type. |
| repeated PsiSample psi = 14; |
| } |