mirror of
https://github.com/torvalds/linux.git
synced 2024-11-08 05:01:48 +00:00
591765fdaf
For long running sessions with many threads with short lifetimes the amount of memory that the buildid process takes is too much. Since we don't have hist_entries that may be pointing to them, we can just release the resources associated with each thread when the exit (PERF_RECORD_EXIT) event is received. For normal processing we need to annotate maps with hits, and thus hist_entries pointing to it and drop the ones that had none. Will be done in a followup patch. Cc: David S. Miller <davem@davemloft.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
#ifndef __PERF_THREAD_H
|
|
#define __PERF_THREAD_H
|
|
|
|
#include <linux/rbtree.h>
|
|
#include <unistd.h>
|
|
#include "symbol.h"
|
|
|
|
struct thread {
|
|
union {
|
|
struct rb_node rb_node;
|
|
struct list_head node;
|
|
};
|
|
struct map_groups mg;
|
|
pid_t pid;
|
|
char shortname[3];
|
|
bool comm_set;
|
|
char *comm;
|
|
int comm_len;
|
|
};
|
|
|
|
struct perf_session;
|
|
|
|
void thread__delete(struct thread *self);
|
|
|
|
int find_all_tid(int pid, pid_t ** all_tid);
|
|
int thread__set_comm(struct thread *self, const char *comm);
|
|
int thread__comm_len(struct thread *self);
|
|
struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
|
|
void thread__insert_map(struct thread *self, struct map *map);
|
|
int thread__fork(struct thread *self, struct thread *parent);
|
|
size_t perf_session__fprintf(struct perf_session *self, FILE *fp);
|
|
|
|
static inline struct map *thread__find_map(struct thread *self,
|
|
enum map_type type, u64 addr)
|
|
{
|
|
return self ? map_groups__find(&self->mg, type, addr) : NULL;
|
|
}
|
|
|
|
void thread__find_addr_map(struct thread *self,
|
|
struct perf_session *session, u8 cpumode,
|
|
enum map_type type, pid_t pid, u64 addr,
|
|
struct addr_location *al);
|
|
|
|
void thread__find_addr_location(struct thread *self,
|
|
struct perf_session *session, u8 cpumode,
|
|
enum map_type type, pid_t pid, u64 addr,
|
|
struct addr_location *al,
|
|
symbol_filter_t filter);
|
|
#endif /* __PERF_THREAD_H */
|