/* * Define timerlat tracing mode. * * There are three tracing modes: * - tracefs-only, used when BPF is unavailable. * - BPF-only, used when BPF is available and neither trace saving nor * auto-analysis are enabled. * - mixed mode, used when BPF is available and either trace saving or * auto-analysis is enabled (which rely on sample collection through * tracefs).
*/ enum timerlat_tracing_mode {
TRACING_MODE_BPF,
TRACING_MODE_TRACEFS,
TRACING_MODE_MIXED,
};
struct timerlat_params { /* Common params */ char *cpus;
cpu_set_t monitored_cpus; char *cgroup_name; unsignedlonglong runtime; longlong stop_us; longlong stop_total_us; longlong timerlat_period_us; longlong print_stack; int sleep_time; int output_divisor; int duration; int set_sched; int dma_latency; int no_aa; int dump_tasks; int cgroup; int hk_cpus; int user_workload; int kernel_workload; int user_data; int warmup; int buffer_size; int deepest_idle_state;
cpu_set_t hk_cpu_set; struct sched_attr sched_param; struct trace_events *events; enum timerlat_tracing_mode mode;
union { struct { /* top only */ int quiet; int aa_only; int pretty_output;
}; struct { /* hist only */ char no_irq; char no_thread; char no_header; char no_summary; char no_index; char with_zeros; int bucket_size; int entries;
};
};
};
int timerlat_apply_config(struct osnoise_tool *tool, struct timerlat_params *params);
int timerlat_hist_main(int argc, char *argv[]); int timerlat_top_main(int argc, char *argv[]); int timerlat_main(int argc, char *argv[]);
Messung V0.5
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