forked from luck/tmp_suning_uos_patched
eed05fe70f
Using 'pahole --packable' I found some structs that could be reorganized to eliminate alignment holes, in some cases getting them to be cacheline multiples. [acme@doppio linux-2.6-tip]$ codiff perf.old ~/bin/perf builtin-annotate.c: struct perf_session | -8 struct perf_header | -8 2 structs changed builtin-diff.c: struct sample_data | -8 1 struct changed diff__process_sample_event | -8 1 function changed, 8 bytes removed, diff: -8 builtin-sched.c: struct sched_atom | -8 1 struct changed builtin-timechart.c: struct per_pid | -8 1 struct changed cmd_timechart | -16 1 function changed, 16 bytes removed, diff: -16 builtin-probe.c: struct perf_probe_point | -8 struct perf_probe_event | -8 2 structs changed opt_add_probe_event | -3 1 function changed, 3 bytes removed, diff: -3 util/probe-finder.c: struct probe_finder | -8 1 struct changed find_kprobe_trace_events | -16 1 function changed, 16 bytes removed, diff: -16 /home/acme/bin/perf: 4 functions changed, 43 bytes removed, diff: -43 [acme@doppio linux-2.6-tip]$ Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
138 lines
2.8 KiB
C
138 lines
2.8 KiB
C
#ifndef __PERF_RECORD_H
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#define __PERF_RECORD_H
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#include <limits.h>
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#include "../perf.h"
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#include "map.h"
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/*
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* PERF_SAMPLE_IP | PERF_SAMPLE_TID | *
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*/
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struct ip_event {
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struct perf_event_header header;
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u64 ip;
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u32 pid, tid;
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unsigned char __more_data[];
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};
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struct mmap_event {
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struct perf_event_header header;
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u32 pid, tid;
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u64 start;
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u64 len;
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u64 pgoff;
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char filename[PATH_MAX];
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};
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struct comm_event {
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struct perf_event_header header;
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u32 pid, tid;
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char comm[16];
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};
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struct fork_event {
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struct perf_event_header header;
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u32 pid, ppid;
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u32 tid, ptid;
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u64 time;
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};
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struct lost_event {
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struct perf_event_header header;
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u64 id;
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u64 lost;
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};
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/*
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* PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID
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*/
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struct read_event {
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struct perf_event_header header;
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u32 pid, tid;
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u64 value;
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u64 time_enabled;
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u64 time_running;
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u64 id;
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};
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struct sample_event {
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struct perf_event_header header;
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u64 array[];
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};
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struct sample_data {
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u64 ip;
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u32 pid, tid;
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u64 time;
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u64 addr;
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u64 id;
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u64 stream_id;
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u64 period;
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u32 cpu;
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u32 raw_size;
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void *raw_data;
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struct ip_callchain *callchain;
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};
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#define BUILD_ID_SIZE 20
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struct build_id_event {
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struct perf_event_header header;
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u8 build_id[ALIGN(BUILD_ID_SIZE, sizeof(u64))];
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char filename[];
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};
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typedef union event_union {
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struct perf_event_header header;
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struct ip_event ip;
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struct mmap_event mmap;
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struct comm_event comm;
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struct fork_event fork;
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struct lost_event lost;
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struct read_event read;
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struct sample_event sample;
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} event_t;
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struct events_stats {
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u64 total;
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u64 lost;
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};
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struct event_stat_id {
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struct rb_node rb_node;
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struct rb_root hists;
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struct events_stats stats;
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u64 config;
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u64 event_stream;
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u32 type;
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};
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void event__print_totals(void);
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struct perf_session;
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typedef int (*event__handler_t)(event_t *event, struct perf_session *session);
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int event__synthesize_thread(pid_t pid, event__handler_t process,
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struct perf_session *session);
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void event__synthesize_threads(event__handler_t process,
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struct perf_session *session);
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int event__synthesize_kernel_mmap(event__handler_t process,
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struct perf_session *session,
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const char *symbol_name);
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int event__synthesize_modules(event__handler_t process,
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struct perf_session *session);
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int event__process_comm(event_t *self, struct perf_session *session);
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int event__process_lost(event_t *self, struct perf_session *session);
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int event__process_mmap(event_t *self, struct perf_session *session);
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int event__process_task(event_t *self, struct perf_session *session);
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struct addr_location;
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int event__preprocess_sample(const event_t *self, struct perf_session *session,
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struct addr_location *al, symbol_filter_t filter);
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int event__parse_sample(event_t *event, u64 type, struct sample_data *data);
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#endif /* __PERF_RECORD_H */
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