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---
logging:
version: 1
formatters:
console_stdout:
format: '%(asctime)s - %(name)s - %(message)s'
console_stderr:
format: '%(message)s'
prom:
format: '%(message)s'
handlers:
console_stdout:
class: logging.StreamHandler
level: INFO
formatter: console_stdout
stream: ext://sys.stdout
console_stderr:
class: logging.StreamHandler
level: ERROR
formatter: console_stderr
stream: ext://sys.stderr
prom:
class: logging.handlers.RotatingFileHandler
level: INFO
formatter: prom
filename: /tmp/metric.prom
mode: w
loggers:
prom:
handlers: [prom]
level: INFO
propagate: False
root:
level: INFO
handlers: [console_stdout, console_stderr]
scheduler:
duration: 1
programs:
- name: bundle_bpf
metrics:
counter:
- name: cpu_cycle
documentation: Cycles processed by CPUs
namespace: bpf
labelnames:
- name
- cpu
- pid
- name: cpu_instruction
documentation: Instructions retired by CPUs
namespace: bpf
labelnames:
- name
- cpu
- pid
- name: llc_reference
documentation: Last level cache operations by type
namespace: bpf
labelnames:
- name
- cpu
- pid
- name: llc_miss
documentation: Last level cache operations by type
namespace: bpf
labelnames:
- name
- cpu
- pid
events:
- type: 0x0 # HARDWARE
name: 0x0 # PERF_COUNT_HW_CPU_CYCLES
target: on_cpu_cycle
table: cpu_cycle
- type: 0x0 # HARDWARE
name: 0x1 # PERF_COUNT_HW_INSTRUCTIONS
target: on_cpu_instruction
table: cpu_instruction
- type: 0x0 # HARDWARE
name: 0x2 # PERF_COUNT_HW_CACHE_REFERENCES
target: on_cache_reference
table: llc_reference
- type: 0x0 # HARDWARE
name: 0x3 # PERF_COUNT_HW_CACHE_MISSES
target: on_cache_miss
table: llc_miss
code: |
#include <linux/ptrace.h>
#include <uapi/linux/bpf_perf_event.h>
const int max_cpus = 256;
struct key_t {
int cpu;
int pid;
char name[TASK_COMM_LEN];
};
BPF_HASH(llc_miss, struct key_t);
BPF_HASH(llc_reference, struct key_t);
BPF_HASH(cpu_instruction, struct key_t);
BPF_HASH(cpu_cycle, struct key_t);
static inline __attribute__((always_inline)) void get_key(struct key_t* key) {
key->cpu = bpf_get_smp_processor_id();
key->pid = bpf_get_current_pid_tgid();
bpf_get_current_comm(&(key->name), sizeof(key->name));
}
int on_cpu_cycle(struct bpf_perf_event_data *ctx) {
struct key_t key = {};
get_key(&key);
cpu_cycle.increment(key, ctx->sample_period);
return 0;
}
int on_cpu_instruction(struct bpf_perf_event_data *ctx) {
struct key_t key = {};
get_key(&key);
cpu_instruction.increment(key, ctx->sample_period);
return 0;
}
int on_cache_reference(struct bpf_perf_event_data *ctx) {
struct key_t key = {};
get_key(&key);
llc_reference.increment(key, ctx->sample_period);
return 0;
}
int on_cache_miss(struct bpf_perf_event_data *ctx) {
struct key_t key = {};
get_key(&key);
llc_miss.increment(key, ctx->sample_period);
return 0;
}
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