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Commit 3d39ac53 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf machine: No need to have two DSOs lists 

We can, given a DSO, figure out if it is a kernel, a kernel module or
a userlevel DSO, so stop having to process two lists in several
functions.

If searching becomes an issue at some point, we can have them in a
rbtree, etc.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-s4yb0onpdywu6dj2xl9lxi4t@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 459ce518

tools/perf/tests/hists_common.c

+1 −1
Original line number Diff line number Diff line
@@ -121,7 +121,7 @@ struct machine *setup_fake_machine(struct machines *machines) 
		size_t k;

		struct dso *dso;



		dso = __dsos__findnew(&machine->user_dsos,

		dso = __dsos__findnew(&machine->dsos,

				      fake_symbols[i].dso_name);

		if (dso == NULL)

			goto out;

tools/perf/util/build-id.c

+16 −43
Original line number Diff line number Diff line
@@ -162,15 +162,20 @@ static int write_buildid(const char *name, size_t name_len, u8 *build_id, 
	return write_padded(fd, name, name_len + 1, len);

}



static int __dsos__write_buildid_table(struct list_head *head,

				       struct machine *machine,

				       pid_t pid, u16 misc, int fd)

static int machine__write_buildid_table(struct machine *machine, int fd)

{

	int err = 0;

	char nm[PATH_MAX];

	struct dso *pos;

	u16 kmisc = PERF_RECORD_MISC_KERNEL,

	    umisc = PERF_RECORD_MISC_USER;



	dsos__for_each_with_build_id(pos, head) {

		int err;

	if (!machine__is_host(machine)) {

		kmisc = PERF_RECORD_MISC_GUEST_KERNEL;

		umisc = PERF_RECORD_MISC_GUEST_USER;

	}



	dsos__for_each_with_build_id(pos, &machine->dsos.head) {

		const char *name;

		size_t name_len;
@@ -189,32 +194,12 @@ static int __dsos__write_buildid_table(struct list_head *head, 
			name_len = pos->long_name_len + 1;

		}



		err = write_buildid(name, name_len, pos->build_id,

				    pid, misc, fd);

		err = write_buildid(name, name_len, pos->build_id, machine->pid,

				    pos->kernel ? kmisc : umisc, fd);

		if (err)

			return err;

	}



	return 0;

}



static int machine__write_buildid_table(struct machine *machine, int fd)

{

	int err;

	u16 kmisc = PERF_RECORD_MISC_KERNEL,

	    umisc = PERF_RECORD_MISC_USER;



	if (!machine__is_host(machine)) {

		kmisc = PERF_RECORD_MISC_GUEST_KERNEL;

		umisc = PERF_RECORD_MISC_GUEST_USER;

			break;

	}



	err = __dsos__write_buildid_table(&machine->kernel_dsos.head, machine,

					  machine->pid, kmisc, fd);

	if (err == 0)

		err = __dsos__write_buildid_table(&machine->user_dsos.head,

						  machine, machine->pid, umisc,

						  fd);

	return err;

}
@@ -247,13 +232,7 @@ static int __dsos__hit_all(struct list_head *head) 


static int machine__hit_all_dsos(struct machine *machine)

{

	int err;



	err = __dsos__hit_all(&machine->kernel_dsos.head);

	if (err)

		return err;



	return __dsos__hit_all(&machine->user_dsos.head);

	return __dsos__hit_all(&machine->dsos.head);

}



int dsos__hit_all(struct perf_session *session)
@@ -493,9 +472,7 @@ static int __dsos__cache_build_ids(struct list_head *head, 


static int machine__cache_build_ids(struct machine *machine)

{

	int ret = __dsos__cache_build_ids(&machine->kernel_dsos.head, machine);

	ret |= __dsos__cache_build_ids(&machine->user_dsos.head, machine);

	return ret;

	return __dsos__cache_build_ids(&machine->dsos.head, machine);

}



int perf_session__cache_build_ids(struct perf_session *session)
@@ -520,11 +497,7 @@ int perf_session__cache_build_ids(struct perf_session *session) 


static bool machine__read_build_ids(struct machine *machine, bool with_hits)

{

	bool ret;



	ret  = __dsos__read_build_ids(&machine->kernel_dsos.head, with_hits);

	ret |= __dsos__read_build_ids(&machine->user_dsos.head, with_hits);

	return ret;

	return __dsos__read_build_ids(&machine->dsos.head, with_hits);

}



bool perf_session__read_build_ids(struct perf_session *session, bool with_hits)

tools/perf/util/dso.c

+1 −1
Original line number Diff line number Diff line
@@ -833,7 +833,7 @@ struct dso *machine__findnew_kernel(struct machine *machine, const char *name, 
	/*

	 * The kernel dso could be created by build_id processing.

	 */

	struct dso *dso = __dsos__findnew(&machine->kernel_dsos, name);

	struct dso *dso = __dsos__findnew(&machine->dsos, name);



	/*

	 * We need to run this in all cases, since during the build_id

tools/perf/util/header.c

+1 −5
Original line number Diff line number Diff line
@@ -1238,7 +1238,6 @@ static int __event_process_build_id(struct build_id_event *bev, 
				    struct perf_session *session)

{

	int err = -1;

	struct dsos *dsos;

	struct machine *machine;

	u16 misc;

	struct dso *dso;
@@ -1253,22 +1252,19 @@ static int __event_process_build_id(struct build_id_event *bev, 
	switch (misc) {

	case PERF_RECORD_MISC_KERNEL:

		dso_type = DSO_TYPE_KERNEL;

		dsos = &machine->kernel_dsos;

		break;

	case PERF_RECORD_MISC_GUEST_KERNEL:

		dso_type = DSO_TYPE_GUEST_KERNEL;

		dsos = &machine->kernel_dsos;

		break;

	case PERF_RECORD_MISC_USER:

	case PERF_RECORD_MISC_GUEST_USER:

		dso_type = DSO_TYPE_USER;

		dsos = &machine->user_dsos;

		break;

	default:

		goto out;

	}



	dso = __dsos__findnew(dsos, filename);

	dso = __dsos__findnew(&machine->dsos, filename);

	if (dso != NULL) {

		char sbuild_id[BUILD_ID_SIZE * 2 + 1];

tools/perf/util/machine.c

+11 −17
Original line number Diff line number Diff line
@@ -26,8 +26,7 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid) 
{

	map_groups__init(&machine->kmaps, machine);

	RB_CLEAR_NODE(&machine->rb_node);

	dsos__init(&machine->user_dsos);

	dsos__init(&machine->kernel_dsos);

	dsos__init(&machine->dsos);



	machine->threads = RB_ROOT;

	pthread_rwlock_init(&machine->threads_lock, NULL);
@@ -111,8 +110,7 @@ void machine__delete_threads(struct machine *machine) 
void machine__exit(struct machine *machine)

{

	map_groups__exit(&machine->kmaps);

	dsos__delete(&machine->user_dsos);

	dsos__delete(&machine->kernel_dsos);

	dsos__delete(&machine->dsos);

	vdso__exit(machine);

	zfree(&machine->root_dir);

	zfree(&machine->current_tid);
@@ -490,9 +488,9 @@ machine__module_dso(struct machine *machine, struct kmod_path *m, 
{

	struct dso *dso;



	dso = dsos__find(&machine->kernel_dsos, m->name, true);

	dso = dsos__find(&machine->dsos, m->name, true);

	if (!dso) {

		dso = dsos__addnew(&machine->kernel_dsos, m->name);

		dso = dsos__addnew(&machine->dsos, m->name);

		if (dso == NULL)

			return NULL;
@@ -561,13 +559,11 @@ struct map *machine__new_module(struct machine *machine, u64 start, 
size_t machines__fprintf_dsos(struct machines *machines, FILE *fp)

{

	struct rb_node *nd;

	size_t ret = __dsos__fprintf(&machines->host.kernel_dsos.head, fp) +

		     __dsos__fprintf(&machines->host.user_dsos.head, fp);

	size_t ret = __dsos__fprintf(&machines->host.dsos.head, fp);



	for (nd = rb_first(&machines->guests); nd; nd = rb_next(nd)) {

		struct machine *pos = rb_entry(nd, struct machine, rb_node);

		ret += __dsos__fprintf(&pos->kernel_dsos.head, fp);

		ret += __dsos__fprintf(&pos->user_dsos.head, fp);

		ret += __dsos__fprintf(&pos->dsos.head, fp);

	}



	return ret;
@@ -576,8 +572,7 @@ size_t machines__fprintf_dsos(struct machines *machines, FILE *fp) 
size_t machine__fprintf_dsos_buildid(struct machine *m, FILE *fp,

				     bool (skip)(struct dso *dso, int parm), int parm)

{

	return __dsos__fprintf_buildid(&m->kernel_dsos.head, fp, skip, parm) +

	       __dsos__fprintf_buildid(&m->user_dsos.head, fp, skip, parm);

	return __dsos__fprintf_buildid(&m->dsos.head, fp, skip, parm);

}



size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
@@ -1106,7 +1101,7 @@ static bool machine__uses_kcore(struct machine *machine) 
{

	struct dso *dso;



	list_for_each_entry(dso, &machine->kernel_dsos.head, node) {

	list_for_each_entry(dso, &machine->dsos.head, node) {

		if (dso__is_kcore(dso))

			return true;

	}
@@ -1153,8 +1148,8 @@ static int machine__process_kernel_mmap_event(struct machine *machine, 
		struct dso *kernel = NULL;

		struct dso *dso;



		list_for_each_entry(dso, &machine->kernel_dsos.head, node) {

			if (is_kernel_module(dso->long_name))

		list_for_each_entry(dso, &machine->dsos.head, node) {

			if (dso->kernel && is_kernel_module(dso->long_name))

				continue;



			kernel = dso;
@@ -1162,8 +1157,7 @@ static int machine__process_kernel_mmap_event(struct machine *machine, 
		}



		if (kernel == NULL)

			kernel = __dsos__findnew(&machine->kernel_dsos,

						 kmmap_prefix);

			kernel = __dsos__findnew(&machine->dsos, kmmap_prefix);

		if (kernel == NULL)

			goto out_problem;