Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
Merge commit. Changes below are compared with the first parent: 491424c0.
Changes
31 files changed · +651 −353
Only the first 600 diff lines are shown. Download the complete patch.
include/linux/hw_breakpoint.h
View filediff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
index e268388..41235c9 100644
--- a/include/linux/hw_breakpoint.h
+++ b/include/linux/hw_breakpoint.h
@@ -93,7 +93,7 @@ register_user_hw_breakpoint(struct perf_event_attr *attr,
struct task_struct *tsk) { return NULL; }
static inline int
modify_user_hw_breakpoint(struct perf_event *bp,
- struct perf_event_attr *attr) { return 0; }
+ struct perf_event_attr *attr) { return -ENOSYS; }
static inline struct perf_event *
register_wide_hw_breakpoint_cpu(struct perf_event_attr *attr,
perf_overflow_handler_t triggered,
include/linux/slab_def.h
View filediff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index 850d057..ca6b2b3 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -110,7 +110,7 @@ extern struct cache_sizes malloc_sizes[];
void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
void *__kmalloc(size_t size, gfp_t flags);
-#ifdef CONFIG_KMEMTRACE
+#ifdef CONFIG_TRACING
extern void *kmem_cache_alloc_notrace(struct kmem_cache *cachep, gfp_t flags);
extern size_t slab_buffer_size(struct kmem_cache *cachep);
#else
@@ -166,7 +166,7 @@ found:
extern void *__kmalloc_node(size_t size, gfp_t flags, int node);
extern void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
-#ifdef CONFIG_KMEMTRACE
+#ifdef CONFIG_TRACING
extern void *kmem_cache_alloc_node_notrace(struct kmem_cache *cachep,
gfp_t flags,
int nodeid);
include/linux/slub_def.h
View filediff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 5ad70a6..1e14beb 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -217,7 +217,7 @@ static __always_inline struct kmem_cache *kmalloc_slab(size_t size)
void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
void *__kmalloc(size_t size, gfp_t flags);
-#ifdef CONFIG_KMEMTRACE
+#ifdef CONFIG_TRACING
extern void *kmem_cache_alloc_notrace(struct kmem_cache *s, gfp_t gfpflags);
#else
static __always_inline void *
@@ -266,7 +266,7 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags)
void *__kmalloc_node(size_t size, gfp_t flags, int node);
void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
-#ifdef CONFIG_KMEMTRACE
+#ifdef CONFIG_TRACING
extern void *kmem_cache_alloc_node_notrace(struct kmem_cache *s,
gfp_t gfpflags,
int node);
mm/slab.c
View filediff --git a/mm/slab.c b/mm/slab.c
index 29b0959..3f48229 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -490,7 +490,7 @@ static void **dbg_userword(struct kmem_cache *cachep, void *objp)
#endif
-#ifdef CONFIG_KMEMTRACE
+#ifdef CONFIG_TRACING
size_t slab_buffer_size(struct kmem_cache *cachep)
{
return cachep->buffer_size;
@@ -3578,7 +3578,7 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t flags)
}
EXPORT_SYMBOL(kmem_cache_alloc);
-#ifdef CONFIG_KMEMTRACE
+#ifdef CONFIG_TRACING
void *kmem_cache_alloc_notrace(struct kmem_cache *cachep, gfp_t flags)
{
return __cache_alloc(cachep, flags, __builtin_return_address(0));
@@ -3641,7 +3641,7 @@ void *kmem_cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid)
}
EXPORT_SYMBOL(kmem_cache_alloc_node);
-#ifdef CONFIG_KMEMTRACE
+#ifdef CONFIG_TRACING
void *kmem_cache_alloc_node_notrace(struct kmem_cache *cachep,
gfp_t flags,
int nodeid)
@@ -3669,7 +3669,7 @@ __do_kmalloc_node(size_t size, gfp_t flags, int node, void *caller)
return ret;
}
-#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_KMEMTRACE)
+#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_TRACING)
void *__kmalloc_node(size_t size, gfp_t flags, int node)
{
return __do_kmalloc_node(size, flags, node,
@@ -3689,7 +3689,7 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node)
return __do_kmalloc_node(size, flags, node, NULL);
}
EXPORT_SYMBOL(__kmalloc_node);
-#endif /* CONFIG_DEBUG_SLAB */
+#endif /* CONFIG_DEBUG_SLAB || CONFIG_TRACING */
#endif /* CONFIG_NUMA */
/**
@@ -3721,7 +3721,7 @@ static __always_inline void *__do_kmalloc(size_t size, gfp_t flags,
}
-#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_KMEMTRACE)
+#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_TRACING)
void *__kmalloc(size_t size, gfp_t flags)
{
return __do_kmalloc(size, flags, __builtin_return_address(0));
mm/slub.c
View filediff --git a/mm/slub.c b/mm/slub.c
index da0ce55..8d71aaf 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1754,7 +1754,7 @@ void *kmem_cache_alloc(struct kmem_cache *s, gfp_t gfpflags)
}
EXPORT_SYMBOL(kmem_cache_alloc);
-#ifdef CONFIG_KMEMTRACE
+#ifdef CONFIG_TRACING
void *kmem_cache_alloc_notrace(struct kmem_cache *s, gfp_t gfpflags)
{
return slab_alloc(s, gfpflags, -1, _RET_IP_);
@@ -1775,7 +1775,7 @@ void *kmem_cache_alloc_node(struct kmem_cache *s, gfp_t gfpflags, int node)
EXPORT_SYMBOL(kmem_cache_alloc_node);
#endif
-#ifdef CONFIG_KMEMTRACE
+#ifdef CONFIG_TRACING
void *kmem_cache_alloc_node_notrace(struct kmem_cache *s,
gfp_t gfpflags,
int node)
tools/perf/Makefile
View filediff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 23ec660..4069996 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -237,8 +237,8 @@ lib = lib
export prefix bindir sharedir sysconfdir
-CC = gcc
-AR = ar
+CC = $(CROSS_COMPILE)gcc
+AR = $(CROSS_COMPILE)ar
RM = rm -f
TAR = tar
FIND = find
@@ -356,7 +356,9 @@ LIB_H += util/parse-options.h
LIB_H += util/parse-events.h
LIB_H += util/quote.h
LIB_H += util/util.h
+LIB_H += util/header.h
LIB_H += util/help.h
+LIB_H += util/session.h
LIB_H += util/strbuf.h
LIB_H += util/string.h
LIB_H += util/strlist.h
@@ -405,6 +407,7 @@ LIB_OBJS += util/callchain.o
LIB_OBJS += util/values.o
LIB_OBJS += util/debug.o
LIB_OBJS += util/map.o
+LIB_OBJS += util/session.o
LIB_OBJS += util/thread.o
LIB_OBJS += util/trace-event-parse.o
LIB_OBJS += util/trace-event-read.o
@@ -492,8 +495,10 @@ else
LIB_OBJS += util/probe-finder.o
endif
+ifndef NO_LIBPERL
PERL_EMBED_LDOPTS = `perl -MExtUtils::Embed -e ldopts 2>/dev/null`
PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
+endif
ifneq ($(shell sh -c "(echo '\#include <EXTERN.h>'; echo '\#include <perl.h>'; echo 'int main(void) { perl_alloc(); return 0; }') | $(CC) -x c - $(PERL_EMBED_CCOPTS) -o /dev/null $(PERL_EMBED_LDOPTS) > /dev/null 2>&1 && echo y"), y)
BASIC_CFLAGS += -DNO_LIBPERL
tools/perf/bench/sched-messaging.c
View filediff --git a/tools/perf/bench/sched-messaging.c b/tools/perf/bench/sched-messaging.c
index 605a2a9..81cee78 100644
--- a/tools/perf/bench/sched-messaging.c
+++ b/tools/perf/bench/sched-messaging.c
@@ -1,6 +1,6 @@
/*
*
- * builtin-bench-messaging.c
+ * sched-messaging.c
*
* messaging: Benchmark for scheduler and IPC mechanisms
*
@@ -320,10 +320,12 @@ int bench_sched_messaging(int argc, const char **argv,
num_groups, num_groups * 2 * num_fds,
thread_mode ? "threads" : "processes");
printf(" %14s: %lu.%03lu [sec]\n", "Total time",
- diff.tv_sec, diff.tv_usec/1000);
+ diff.tv_sec,
+ (unsigned long) (diff.tv_usec/1000));
break;
case BENCH_FORMAT_SIMPLE:
- printf("%lu.%03lu\n", diff.tv_sec, diff.tv_usec/1000);
+ printf("%lu.%03lu\n", diff.tv_sec,
+ (unsigned long) (diff.tv_usec/1000));
break;
default:
/* reaching here is something disaster */
tools/perf/bench/sched-pipe.c
View filediff --git a/tools/perf/bench/sched-pipe.c b/tools/perf/bench/sched-pipe.c
index 238185f..4f77c7c 100644
--- a/tools/perf/bench/sched-pipe.c
+++ b/tools/perf/bench/sched-pipe.c
@@ -1,6 +1,6 @@
/*
*
- * builtin-bench-pipe.c
+ * sched-pipe.c
*
* pipe: Benchmark for pipe()
*
@@ -87,7 +87,8 @@ int bench_sched_pipe(int argc, const char **argv,
if (pid) {
retpid = waitpid(pid, &wait_stat, 0);
assert((retpid == pid) && WIFEXITED(wait_stat));
- return 0;
+ } else {
+ exit(0);
}
switch (bench_format) {
@@ -99,7 +100,8 @@ int bench_sched_pipe(int argc, const char **argv,
result_usec += diff.tv_usec;
printf(" %14s: %lu.%03lu [sec]\n\n", "Total time",
- diff.tv_sec, diff.tv_usec/1000);
+ diff.tv_sec,
+ (unsigned long) (diff.tv_usec/1000));
printf(" %14lf usecs/op\n",
(double)result_usec / (double)loops);
@@ -110,7 +112,8 @@ int bench_sched_pipe(int argc, const char **argv,
case BENCH_FORMAT_SIMPLE:
printf("%lu.%03lu\n",
- diff.tv_sec, diff.tv_usec / 1000);
+ diff.tv_sec,
+ (unsigned long) (diff.tv_usec / 1000));
break;
default:
tools/perf/builtin-annotate.c
View filediff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 0bf2e8f..21a78d3 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -25,6 +25,7 @@
#include "util/thread.h"
#include "util/sort.h"
#include "util/hist.h"
+#include "util/session.h"
#include "util/data_map.h"
static char const *input_name = "perf.data";
@@ -462,21 +463,23 @@ static struct perf_file_handler file_handler = {
static int __cmd_annotate(void)
{
- struct perf_header *header;
+ struct perf_session *session = perf_session__new(input_name, O_RDONLY, force);
struct thread *idle;
int ret;
+ if (session == NULL)
+ return -ENOMEM;
+
idle = register_idle_thread();
register_perf_file_handler(&file_handler);
- ret = mmap_dispatch_perf_file(&header, input_name, 0, 0,
- &event__cwdlen, &event__cwd);
+ ret = perf_session__process_events(session, 0, &event__cwdlen, &event__cwd);
if (ret)
- return ret;
+ goto out_delete;
if (dump_trace) {
event__print_totals();
- return 0;
+ goto out_delete;
}
if (verbose > 3)
@@ -489,6 +492,8 @@ static int __cmd_annotate(void)
output__resort(event__total[0]);
find_annotations();
+out_delete:
+ perf_session__delete(session);
return ret;
}
tools/perf/builtin-bench.c
View filediff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
index e043eb8..4699677 100644
--- a/tools/perf/builtin-bench.c
+++ b/tools/perf/builtin-bench.c
@@ -31,6 +31,9 @@ struct bench_suite {
const char *summary;
int (*fn)(int, const char **, const char *);
};
+ \
+/* sentinel: easy for help */
+#define suite_all { "all", "test all suite (pseudo suite)", NULL }
static struct bench_suite sched_suites[] = {
{ "messaging",
@@ -39,6 +42,7 @@ static struct bench_suite sched_suites[] = {
{ "pipe",
"Flood of communication over pipe() between two processes",
bench_sched_pipe },
+ suite_all,
{ NULL,
NULL,
NULL }
@@ -48,6 +52,7 @@ static struct bench_suite mem_suites[] = {
{ "memcpy",
"Simple memory copy in various ways",
bench_mem_memcpy },
+ suite_all,
{ NULL,
NULL,
NULL }
@@ -66,6 +71,9 @@ static struct bench_subsys subsystems[] = {
{ "mem",
"memory access performance",
mem_suites },
+ { "all", /* sentinel: easy for help */
+ "test all subsystem (pseudo subsystem)",
+ NULL },
{ NULL,
NULL,
NULL }
@@ -75,11 +83,11 @@ static void dump_suites(int subsys_index)
{
int i;
- printf("List of available suites for %s...\n\n",
+ printf("# List of available suites for %s...\n\n",
subsystems[subsys_index].name);
for (i = 0; subsystems[subsys_index].suites[i].name; i++)
- printf("\t%s: %s\n",
+ printf("%14s: %s\n",
subsystems[subsys_index].suites[i].name,
subsystems[subsys_index].suites[i].summary);
@@ -110,10 +118,10 @@ static void print_usage(void)
printf("\t%s\n", bench_usage[i]);
printf("\n");
- printf("List of available subsystems...\n\n");
+ printf("# List of available subsystems...\n\n");
for (i = 0; subsystems[i].name; i++)
- printf("\t%s: %s\n",
+ printf("%14s: %s\n",
subsystems[i].name, subsystems[i].summary);
printf("\n");
}
@@ -131,6 +139,37 @@ static int bench_str2int(char *str)
return BENCH_FORMAT_UNKNOWN;
}
+static void all_suite(struct bench_subsys *subsys) /* FROM HERE */
+{
+ int i;
+ const char *argv[2];
+ struct bench_suite *suites = subsys->suites;
+
+ argv[1] = NULL;
+ /*
+ * TODO:
+ * preparing preset parameters for
+ * embedded, ordinary PC, HPC, etc...
+ * will be helpful
+ */
+ for (i = 0; suites[i].fn; i++) {
+ printf("# Running %s/%s benchmark...\n",
+ subsys->name,
+ suites[i].name);
+
+ argv[1] = suites[i].name;
+ suites[i].fn(1, argv, NULL);
+ printf("\n");
+ }
+}
+
+static void all_subsystem(void)
+{
+ int i;
+ for (i = 0; subsystems[i].suites; i++)
+ all_suite(&subsystems[i]);
+}
+
int cmd_bench(int argc, const char **argv, const char *prefix __used)
{
int i, j, status = 0;
@@ -155,6 +194,11 @@ int cmd_bench(int argc, const char **argv, const char *prefix __used)
goto end;
}
+ if (!strcmp(argv[0], "all")) {
+ all_subsystem();
+ goto end;
+ }
+
for (i = 0; subsystems[i].name; i++) {
if (strcmp(subsystems[i].name, argv[0]))
continue;
@@ -165,6 +209,11 @@ int cmd_bench(int argc, const char **argv, const char *prefix __used)
goto end;
}
+ if (!strcmp(argv[1], "all")) {
+ all_suite(&subsystems[i]);
+ goto end;
+ }
+
for (j = 0; subsystems[i].suites[j].name; j++) {
if (strcmp(subsystems[i].suites[j].name, argv[1]))
continue;
tools/perf/builtin-buildid-list.c
View filediff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index dcb6143..bfd16a1 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -11,8 +11,8 @@
#include "util/cache.h"
#include "util/data_map.h"
#include "util/debug.h"
-#include "util/header.h"
#include "util/parse-options.h"
+#include "util/session.h"
#include "util/symbol.h"
static char const *input_name = "perf.data";
@@ -55,56 +55,17 @@ static int perf_file_section__process_buildids(struct perf_file_section *self,
static int __cmd_buildid_list(void)
{
int err = -1;
- struct perf_header *header;
- struct perf_file_header f_header;
- struct stat input_stat;
- int input = open(input_name, O_RDONLY);
+ struct perf_session *session = perf_session__new(input_name, O_RDONLY, force);
- if (input < 0) {
- pr_err("failed to open file: %s", input_name);
- if (!strcmp(input_name, "perf.data"))
- pr_err(" (try 'perf record' first)");
- pr_err("\n");
- goto out;
- }
-
- err = fstat(input, &input_stat);
- if (err < 0) {
- perror("failed to stat file");
- goto out_close;
- }
-
- if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) {
- pr_err("file %s not owned by current user or root\n",
- input_name);
- goto out_close;
- }
-
- if (!input_stat.st_size) {
- pr_info("zero-sized file, nothing to do!\n");
- goto out_close;
- }
-
- err = -1;
- header = perf_header__new();
- if (header == NULL)
- goto out_close;
-
- if (perf_file_header__read(&f_header, header, input) < 0) {
- pr_warning("incompatible file format");
- goto out_close;
- }
+ if (session == NULL)
+ return -1;
- err = perf_header__process_sections(header, input,
+ err = perf_header__process_sections(&session->header, session->fd,
perf_file_section__process_buildids);
+ if (err >= 0)
+ dsos__fprintf_buildid(stdout);
- if (err < 0)
- goto out_close;
-
- dsos__fprintf_buildid(stdout);
-out_close:
- close(input);
-out:
+ perf_session__delete(session);
return err;
}
tools/perf/builtin-kmem.c
View filediff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 5f20951..2071d24 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -6,6 +6,7 @@
#include "util/symbol.h"
#include "util/thread.h"
#include "util/header.h"
+#include "util/session.h"
#include "util/parse-options.h"
#include "util/trace-event.h"
@@ -20,7 +21,6 @@ typedef int (*sort_fn_t)(struct alloc_stat *, struct alloc_stat *);
static char const *input_name = "perf.data";
-static struct perf_header *header;
static u64 sample_type;
static int alloc_flag;
@@ -367,11 +367,18 @@ static struct perf_file_handler file_handler = {
static int read_events(void)
{
+ int err;
+ struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0);
+
+ if (session == NULL)
+ return -ENOMEM;
+
register_idle_thread();
register_perf_file_handler(&file_handler);
- return mmap_dispatch_perf_file(&header, input_name, 0, 0,
- &event__cwdlen, &event__cwd);
+ err = perf_session__process_events(session, 0, &event__cwdlen, &event__cwd);
+ perf_session__delete(session);
+ return err;
}
static double fragmentation(unsigned long n_req, unsigned long n_alloc)
@@ -403,7 +410,7 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
if (is_caller) {
addr = data->call_site;
if (!raw_ip)
- sym = thread__find_function(kthread, addr, NULL);
+ sym = map_groups__find_function(kmaps, addr, NULL);
} else
addr = data->ptr;
tools/perf/builtin-record.c
View filediff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 0e519c6..4decbd1 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -17,6 +17,7 @@
#include "util/header.h"
#include "util/event.h"
#include "util/debug.h"
+#include "util/session.h"
#include "util/symbol.h"
#include <unistd.h>
@@ -62,7 +63,7 @@ static int nr_cpu = 0;
static int file_new = 1;
-struct perf_header *header = NULL;
+static struct perf_session *session;
struct mmap_data {
int counter;
@@ -216,12 +217,12 @@ static struct perf_header_attr *get_header_attr(struct perf_event_attr *a, int n
{
struct perf_header_attr *h_attr;
- if (nr < header->attrs) {
- h_attr = header->attr[nr];
+ if (nr < session->header.attrs) {
+ h_attr = session->header.attr[nr];
} else {
h_attr = perf_header_attr__new(a);
if (h_attr != NULL)
- if (perf_header__add_attr(header, h_attr) < 0) {
+ if (perf_header__add_attr(&session->header, h_attr) < 0) {
perf_header_attr__delete(h_attr);
h_attr = NULL;
}
@@ -395,9 +396,9 @@ static void open_counters(int cpu, pid_t pid)
static void atexit_header(void)
{
- header->data_size += bytes_written;
+ session->header.data_size += bytes_written;
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tools/perf/builtin-report.c
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tools/perf/builtin-sched.c
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tools/perf/builtin-timechart.c
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tools/perf/builtin-trace.c
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tools/perf/perf.h
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tools/perf/util/data_map.c
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tools/perf/util/data_map.h
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tools/perf/util/event.c
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tools/perf/util/event.h
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tools/perf/util/header.c
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tools/perf/util/header.h
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tools/perf/util/map.c
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tools/perf/util/session.c
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tools/perf/util/session.h
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tools/perf/util/symbol.c
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tools/perf/util/symbol.h
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tools/perf/util/thread.c
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tools/perf/util/thread.h
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