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c3030995f2
Define new, perf tool only, sample types and their layouts. Add logic to parse /proc/schedstat, convert it to perf sample format and save samples to perf.data file with `perf sched stats record` command. Also add logic to read perf.data file, interpret schedstat samples and print rawdump of samples with `perf script -D`. Note that, /proc/schedstat file output is standardized with version number. The patch supports v15 but older or newer version can be added easily. Co-developed-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Tested-by: Chen Yu <yu.c.chen@intel.com> Tested-by: James Clark <james.clark@linaro.org> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Anubhav Shelat <ashelat@redhat.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: David Vernet <void@manifault.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Gautham Shenoy <gautham.shenoy@amd.com> Cc: Graham Woodward <graham.woodward@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Santosh Shukla <santosh.shukla@amd.com> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: Zhongqiu Han <quic_zhonhan@quicinc.com> [ PRIu64 needs uint64_t, not 'unsigned long' to work on both 32-bit and 64-bit ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
119 lines
2.8 KiB
C
119 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_TOOL_H
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#define __PERF_TOOL_H
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#include <stdbool.h>
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#include <linux/types.h>
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struct perf_session;
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union perf_event;
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struct evlist;
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struct evsel;
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struct perf_sample;
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struct perf_tool;
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struct machine;
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struct ordered_events;
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typedef int (*event_sample)(const struct perf_tool *tool, union perf_event *event,
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struct perf_sample *sample,
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struct evsel *evsel, struct machine *machine);
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typedef int (*event_op)(const struct perf_tool *tool, union perf_event *event,
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struct perf_sample *sample, struct machine *machine);
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typedef int (*event_attr_op)(const struct perf_tool *tool,
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union perf_event *event,
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struct evlist **pevlist);
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typedef int (*event_op2)(const struct perf_tool *tool, struct perf_session *session,
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union perf_event *event);
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typedef s64 (*event_op3)(const struct perf_tool *tool, struct perf_session *session,
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union perf_event *event);
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typedef int (*event_op4)(const struct perf_tool *tool, struct perf_session *session,
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union perf_event *event, u64 data, const char *str);
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typedef int (*event_oe)(const struct perf_tool *tool, union perf_event *event,
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struct ordered_events *oe);
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enum show_feature_header {
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SHOW_FEAT_NO_HEADER = 0,
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SHOW_FEAT_HEADER,
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SHOW_FEAT_HEADER_FULL_INFO,
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};
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struct perf_tool {
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event_sample sample,
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read,
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callchain_deferred;
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event_op mmap,
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mmap2,
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comm,
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namespaces,
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cgroup,
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fork,
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exit,
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lost,
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lost_samples,
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aux,
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itrace_start,
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aux_output_hw_id,
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context_switch,
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throttle,
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unthrottle,
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ksymbol,
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bpf,
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text_poke;
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event_attr_op attr;
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event_attr_op event_update;
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event_op2 tracing_data;
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event_oe finished_round;
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event_op2 build_id,
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id_index,
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auxtrace_info,
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auxtrace_error,
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time_conv,
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thread_map,
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cpu_map,
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stat_config,
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stat,
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stat_round,
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feature,
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finished_init,
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bpf_metadata,
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schedstat_cpu,
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schedstat_domain;
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event_op4 compressed;
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event_op3 auxtrace;
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bool ordered_events;
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bool ordering_requires_timestamps;
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bool namespace_events;
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bool cgroup_events;
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bool no_warn;
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bool dont_split_sample_group;
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bool merge_deferred_callchains;
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enum show_feature_header show_feat_hdr;
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};
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void perf_tool__init(struct perf_tool *tool, bool ordered_events);
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bool perf_tool__compressed_is_stub(const struct perf_tool *tool);
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int process_event_sample_stub(const struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct evsel *evsel,
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struct machine *machine);
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struct delegate_tool {
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/** @tool: The actual tool that calls the delegate. */
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struct perf_tool tool;
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/** @delegate: The tool that is delegated to. */
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struct perf_tool *delegate;
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};
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void delegate_tool__init(struct delegate_tool *tool, struct perf_tool *delegate);
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#endif /* __PERF_TOOL_H */
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