mirror of https://gitee.com/openkylin/linux.git
perf/core improvements:
. perf inject changes to allow showing where a task sleeps, from Andrew Vagin. . Makefile improvements from Namhyung Kim. . Add --pre and --post command hooks in 'stat', from Peter Zijlstra. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) iQIcBAABAgAGBQJQipAcAAoJENZQFvNTUqpAOmMP/2pJNS2VviidkFdSy1E9nZOv eeXOXpiyvOu2yNQDt1b/KUbksVVBqTQxV6ECUOhSoXIyUAzWlNyKoAKWXYiQ/8QZ E1fc5bOjCOWJcbdG5s/1WChcRMbyrtpP1MOYn7xqjQQjU8DbhqDD7Thi52d4D9p2 ffjLyBLe9hkZRQFQvsB1xtdMnLoGNoDvcw2imELzjauH4XbejZ6hbVbktaBYyGoE +wmorssLFMDzASnwMxA9g4oQyoGq8P4ef/t+m7qW44VN4gEqS46xCXBmuS01it+4 8yjkIV0wJXEVueLlj+gB70H/e/mR+8nKCjUZCox4LeClyUzKOzo5WOeymOwV1x8H amlRpdCH0AAIHbQfdUlW0tQubjAGVVqG+sl8gUhryCNurf7ssgyK4LqFgScB/wp0 pRl6upl3UWEPThm5pF/LnRCPUtMmf8V/87yPmnuaSLUu5Eh/qTbP0jNJNdhIhE01 LNzfIq+eNCI0nrnKJmiHigM/fRNDz1opQhIGEzOLPe2sIP4d3iIuzUGYW/d/Cxly HMi8SNXZBk0OZXtioDudGzPOiV+XPhFnYTFWgjXqYIhymG90Uc73wgOmXk+fTxNM wTmCJFaQloloPak1KClGZv6TSlvkMoIgUzkm0XE09fej+SG+NFWCbZjt9qLhB2T2 a/VHRfOUWZ+DcnFUvlCh =SgLu -----END PGP SIGNATURE----- Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements from Arnaldo Carvalho de Melo: * perf inject changes to allow showing where a task sleeps, from Andrew Vagin. * Makefile improvements from Namhyung Kim. * Add --pre and --post command hooks in 'stat', from Peter Zijlstra. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar
commit
9db5506494
|
|
@ -253,7 +253,7 @@ all_deps := $(all_objs:%.o=.%.d)
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# let .d file also depends on the source and header files
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define check_deps
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@set -e; $(RM) $@; \
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$(CC) -M $(CFLAGS) $< > $@.$$$$; \
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$(CC) -MM $(CFLAGS) $< > $@.$$$$; \
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sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
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$(RM) $@.$$$$
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endef
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|
|
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@ -29,6 +29,17 @@ OPTIONS
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-v::
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--verbose::
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Be more verbose.
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-i::
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--input=::
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Input file name. (default: stdin)
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-o::
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--output=::
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Output file name. (default: stdout)
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-s::
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--sched-stat::
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Merge sched_stat and sched_switch for getting events where and how long
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tasks slept. sched_switch contains a callchain where a task slept and
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sched_stat contains a timeslice how long a task slept.
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SEE ALSO
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--------
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|
|
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@ -108,6 +108,11 @@ with it. --append may be used here. Examples:
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3>results perf stat --log-fd 3 -- $cmd
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3>>results perf stat --log-fd 3 --append -- $cmd
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--pre::
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--post::
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Pre and post measurement hooks, e.g.:
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perf stat --repeat 10 --null --sync --pre 'make -s O=defconfig-build/clean' -- make -s -j64 O=defconfig-build/ bzImage
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EXAMPLES
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|
|
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|||
|
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@ -541,7 +541,8 @@ LIB_OBJS += $(OUTPUT)util/symbol-minimal.o
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else # NO_LIBELF
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BASIC_CFLAGS += -DLIBELF_SUPPORT
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ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_COMMON),-DLIBELF_MMAP),y)
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FLAGS_LIBELF=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS)
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ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y)
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BASIC_CFLAGS += -DLIBELF_MMAP
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endif
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|
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@ -977,20 +978,15 @@ help:
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@echo 'Perf maintainer targets:'
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@echo ' clean - clean all binary objects and build output'
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doc:
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$(MAKE) -C Documentation all
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man:
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$(MAKE) -C Documentation man
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DOC_TARGETS := doc man html info pdf
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|
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html:
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$(MAKE) -C Documentation html
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INSTALL_DOC_TARGETS := $(patsubst %,install-%,$(DOC_TARGETS)) try-install-man
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INSTALL_DOC_TARGETS += quick-install-doc quick-install-man quick-install-html
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|
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info:
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$(MAKE) -C Documentation info
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|
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pdf:
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$(MAKE) -C Documentation pdf
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# 'make doc' should call 'make -C Documentation all'
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$(DOC_TARGETS):
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$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) $(@:doc=all)
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|
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TAGS:
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$(RM) TAGS
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||||
|
|
@ -1061,32 +1057,9 @@ install: all try-install-man
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install-python_ext:
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$(PYTHON_WORD) util/setup.py --quiet install --root='/$(DESTDIR_SQ)'
|
||||
|
||||
install-doc:
|
||||
$(MAKE) -C Documentation install
|
||||
|
||||
install-man:
|
||||
$(MAKE) -C Documentation install-man
|
||||
|
||||
try-install-man:
|
||||
$(MAKE) -C Documentation try-install-man
|
||||
|
||||
install-html:
|
||||
$(MAKE) -C Documentation install-html
|
||||
|
||||
install-info:
|
||||
$(MAKE) -C Documentation install-info
|
||||
|
||||
install-pdf:
|
||||
$(MAKE) -C Documentation install-pdf
|
||||
|
||||
quick-install-doc:
|
||||
$(MAKE) -C Documentation quick-install
|
||||
|
||||
quick-install-man:
|
||||
$(MAKE) -C Documentation quick-install-man
|
||||
|
||||
quick-install-html:
|
||||
$(MAKE) -C Documentation quick-install-html
|
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# 'make install-doc' should call 'make -C Documentation install'
|
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$(INSTALL_DOC_TARGETS):
|
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$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) $(@:-doc=)
|
||||
|
||||
### Cleaning rules
|
||||
|
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|
|
@ -1094,7 +1067,7 @@ clean: $(LIBTRACEEVENT)-clean
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|||
$(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS)
|
||||
$(RM) $(ALL_PROGRAMS) perf
|
||||
$(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope*
|
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$(MAKE) -C Documentation/ clean
|
||||
$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
|
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$(RM) $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS
|
||||
$(RM) $(OUTPUT)util/*-bison*
|
||||
$(RM) $(OUTPUT)util/*-flex*
|
||||
|
|
|
|||
|
|
@ -8,33 +8,53 @@
|
|||
#include "builtin.h"
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||||
|
||||
#include "perf.h"
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#include "util/color.h"
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#include "util/evlist.h"
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#include "util/evsel.h"
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||||
#include "util/session.h"
|
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#include "util/tool.h"
|
||||
#include "util/debug.h"
|
||||
#include "util/build-id.h"
|
||||
|
||||
#include "util/parse-options.h"
|
||||
|
||||
#include <linux/list.h>
|
||||
|
||||
struct perf_inject {
|
||||
struct perf_tool tool;
|
||||
bool build_ids;
|
||||
bool sched_stat;
|
||||
const char *input_name;
|
||||
int pipe_output,
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output;
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u64 bytes_written;
|
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struct list_head samples;
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};
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|
||||
static int perf_event__repipe_synth(struct perf_tool *tool __maybe_unused,
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struct event_entry {
|
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struct list_head node;
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u32 tid;
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union perf_event event[0];
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||||
};
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|
||||
static int perf_event__repipe_synth(struct perf_tool *tool,
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union perf_event *event,
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struct machine *machine __maybe_unused)
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{
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struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
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uint32_t size;
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void *buf = event;
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||||
|
||||
size = event->header.size;
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||||
|
||||
while (size) {
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int ret = write(STDOUT_FILENO, buf, size);
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||||
int ret = write(inject->output, buf, size);
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||||
if (ret < 0)
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return -errno;
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||||
|
||||
size -= ret;
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||||
buf += ret;
|
||||
inject->bytes_written += ret;
|
||||
}
|
||||
|
||||
return 0;
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||||
|
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@ -80,12 +100,25 @@ static int perf_event__repipe(struct perf_tool *tool,
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|||
return perf_event__repipe_synth(tool, event, machine);
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||||
}
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||||
|
||||
typedef int (*inject_handler)(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 perf_evsel *evsel,
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||||
struct machine *machine);
|
||||
|
||||
static int perf_event__repipe_sample(struct perf_tool *tool,
|
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union perf_event *event,
|
||||
struct perf_sample *sample __maybe_unused,
|
||||
struct perf_evsel *evsel __maybe_unused,
|
||||
struct perf_sample *sample,
|
||||
struct perf_evsel *evsel,
|
||||
struct machine *machine)
|
||||
{
|
||||
if (evsel->handler.func) {
|
||||
inject_handler f = evsel->handler.func;
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||||
return f(tool, event, sample, evsel, machine);
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||||
}
|
||||
|
||||
build_id__mark_dso_hit(tool, event, sample, evsel, machine);
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||||
|
||||
return perf_event__repipe_synth(tool, event, machine);
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||||
}
|
||||
|
||||
|
|
@ -210,6 +243,80 @@ static int perf_event__inject_buildid(struct perf_tool *tool,
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return 0;
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||||
}
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||||
|
||||
static int perf_inject__sched_process_exit(struct perf_tool *tool,
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union perf_event *event __maybe_unused,
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struct perf_sample *sample,
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struct perf_evsel *evsel __maybe_unused,
|
||||
struct machine *machine __maybe_unused)
|
||||
{
|
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struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
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struct event_entry *ent;
|
||||
|
||||
list_for_each_entry(ent, &inject->samples, node) {
|
||||
if (sample->tid == ent->tid) {
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||||
list_del_init(&ent->node);
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||||
free(ent);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int perf_inject__sched_switch(struct perf_tool *tool,
|
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union perf_event *event,
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struct perf_sample *sample,
|
||||
struct perf_evsel *evsel,
|
||||
struct machine *machine)
|
||||
{
|
||||
struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
|
||||
struct event_entry *ent;
|
||||
|
||||
perf_inject__sched_process_exit(tool, event, sample, evsel, machine);
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||||
|
||||
ent = malloc(event->header.size + sizeof(struct event_entry));
|
||||
if (ent == NULL) {
|
||||
color_fprintf(stderr, PERF_COLOR_RED,
|
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"Not enough memory to process sched switch event!");
|
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return -1;
|
||||
}
|
||||
|
||||
ent->tid = sample->tid;
|
||||
memcpy(&ent->event, event, event->header.size);
|
||||
list_add(&ent->node, &inject->samples);
|
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return 0;
|
||||
}
|
||||
|
||||
static int perf_inject__sched_stat(struct perf_tool *tool,
|
||||
union perf_event *event __maybe_unused,
|
||||
struct perf_sample *sample,
|
||||
struct perf_evsel *evsel,
|
||||
struct machine *machine)
|
||||
{
|
||||
struct event_entry *ent;
|
||||
union perf_event *event_sw;
|
||||
struct perf_sample sample_sw;
|
||||
struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
|
||||
u32 pid = perf_evsel__intval(evsel, sample, "pid");
|
||||
|
||||
list_for_each_entry(ent, &inject->samples, node) {
|
||||
if (pid == ent->tid)
|
||||
goto found;
|
||||
}
|
||||
|
||||
return 0;
|
||||
found:
|
||||
event_sw = &ent->event[0];
|
||||
perf_evsel__parse_sample(evsel, event_sw, &sample_sw);
|
||||
|
||||
sample_sw.period = sample->period;
|
||||
sample_sw.time = sample->time;
|
||||
perf_event__synthesize_sample(event_sw, evsel->attr.sample_type,
|
||||
&sample_sw, false);
|
||||
build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine);
|
||||
return perf_event__repipe(tool, event_sw, &sample_sw, machine);
|
||||
}
|
||||
|
||||
extern volatile int session_done;
|
||||
|
||||
static void sig_handler(int sig __maybe_unused)
|
||||
|
|
@ -217,6 +324,21 @@ static void sig_handler(int sig __maybe_unused)
|
|||
session_done = 1;
|
||||
}
|
||||
|
||||
static int perf_evsel__check_stype(struct perf_evsel *evsel,
|
||||
u64 sample_type, const char *sample_msg)
|
||||
{
|
||||
struct perf_event_attr *attr = &evsel->attr;
|
||||
const char *name = perf_evsel__name(evsel);
|
||||
|
||||
if (!(attr->sample_type & sample_type)) {
|
||||
pr_err("Samples for %s event do not have %s attribute set.",
|
||||
name, sample_msg);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __cmd_inject(struct perf_inject *inject)
|
||||
{
|
||||
struct perf_session *session;
|
||||
|
|
@ -224,19 +346,48 @@ static int __cmd_inject(struct perf_inject *inject)
|
|||
|
||||
signal(SIGINT, sig_handler);
|
||||
|
||||
if (inject->build_ids) {
|
||||
inject->tool.sample = perf_event__inject_buildid;
|
||||
if (inject->build_ids || inject->sched_stat) {
|
||||
inject->tool.mmap = perf_event__repipe_mmap;
|
||||
inject->tool.fork = perf_event__repipe_fork;
|
||||
inject->tool.tracing_data = perf_event__repipe_tracing_data;
|
||||
}
|
||||
|
||||
session = perf_session__new("-", O_RDONLY, false, true, &inject->tool);
|
||||
session = perf_session__new(inject->input_name, O_RDONLY, false, true, &inject->tool);
|
||||
if (session == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
if (inject->build_ids) {
|
||||
inject->tool.sample = perf_event__inject_buildid;
|
||||
} else if (inject->sched_stat) {
|
||||
struct perf_evsel *evsel;
|
||||
|
||||
inject->tool.ordered_samples = true;
|
||||
|
||||
list_for_each_entry(evsel, &session->evlist->entries, node) {
|
||||
const char *name = perf_evsel__name(evsel);
|
||||
|
||||
if (!strcmp(name, "sched:sched_switch")) {
|
||||
if (perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID"))
|
||||
return -EINVAL;
|
||||
|
||||
evsel->handler.func = perf_inject__sched_switch;
|
||||
} else if (!strcmp(name, "sched:sched_process_exit"))
|
||||
evsel->handler.func = perf_inject__sched_process_exit;
|
||||
else if (!strncmp(name, "sched:sched_stat_", 17))
|
||||
evsel->handler.func = perf_inject__sched_stat;
|
||||
}
|
||||
}
|
||||
|
||||
if (!inject->pipe_output)
|
||||
lseek(inject->output, session->header.data_offset, SEEK_SET);
|
||||
|
||||
ret = perf_session__process_events(session, &inject->tool);
|
||||
|
||||
if (!inject->pipe_output) {
|
||||
session->header.data_size = inject->bytes_written;
|
||||
perf_session__write_header(session, session->evlist, inject->output, true);
|
||||
}
|
||||
|
||||
perf_session__delete(session);
|
||||
|
||||
return ret;
|
||||
|
|
@ -260,10 +411,20 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
|
|||
.tracing_data = perf_event__repipe_tracing_data_synth,
|
||||
.build_id = perf_event__repipe_op2_synth,
|
||||
},
|
||||
.input_name = "-",
|
||||
.samples = LIST_HEAD_INIT(inject.samples),
|
||||
};
|
||||
const char *output_name = "-";
|
||||
const struct option options[] = {
|
||||
OPT_BOOLEAN('b', "build-ids", &inject.build_ids,
|
||||
"Inject build-ids into the output stream"),
|
||||
OPT_STRING('i', "input", &inject.input_name, "file",
|
||||
"input file name"),
|
||||
OPT_STRING('o', "output", &output_name, "file",
|
||||
"output file name"),
|
||||
OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat,
|
||||
"Merge sched-stat and sched-switch for getting events "
|
||||
"where and how long tasks slept"),
|
||||
OPT_INCR('v', "verbose", &verbose,
|
||||
"be more verbose (show build ids, etc)"),
|
||||
OPT_END()
|
||||
|
|
@ -281,6 +442,18 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
|
|||
if (argc)
|
||||
usage_with_options(inject_usage, options);
|
||||
|
||||
if (!strcmp(output_name, "-")) {
|
||||
inject.pipe_output = 1;
|
||||
inject.output = STDOUT_FILENO;
|
||||
} else {
|
||||
inject.output = open(output_name, O_CREAT | O_WRONLY | O_TRUNC,
|
||||
S_IRUSR | S_IWUSR);
|
||||
if (inject.output < 0) {
|
||||
perror("failed to create output file");
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
if (symbol__init() < 0)
|
||||
return -1;
|
||||
|
||||
|
|
|
|||
|
|
@ -57,6 +57,7 @@
|
|||
#include "util/thread.h"
|
||||
#include "util/thread_map.h"
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <sys/prctl.h>
|
||||
#include <locale.h>
|
||||
|
||||
|
|
@ -83,6 +84,9 @@ static const char *csv_sep = NULL;
|
|||
static bool csv_output = false;
|
||||
static bool group = false;
|
||||
static FILE *output = NULL;
|
||||
static const char *pre_cmd = NULL;
|
||||
static const char *post_cmd = NULL;
|
||||
static bool sync_run = false;
|
||||
|
||||
static volatile int done = 0;
|
||||
|
||||
|
|
@ -265,7 +269,7 @@ static int read_counter(struct perf_evsel *counter)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int run_perf_stat(int argc __maybe_unused, const char **argv)
|
||||
static int __run_perf_stat(int argc __maybe_unused, const char **argv)
|
||||
{
|
||||
unsigned long long t0, t1;
|
||||
struct perf_evsel *counter, *first;
|
||||
|
|
@ -405,6 +409,32 @@ static int run_perf_stat(int argc __maybe_unused, const char **argv)
|
|||
return WEXITSTATUS(status);
|
||||
}
|
||||
|
||||
static int run_perf_stat(int argc __maybe_unused, const char **argv)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (pre_cmd) {
|
||||
ret = system(pre_cmd);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (sync_run)
|
||||
sync();
|
||||
|
||||
ret = __run_perf_stat(argc, argv);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (post_cmd) {
|
||||
ret = system(post_cmd);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void print_noise_pct(double total, double avg)
|
||||
{
|
||||
double pct = rel_stddev_stats(total, avg);
|
||||
|
|
@ -1069,8 +1099,7 @@ static int add_default_attributes(void)
|
|||
|
||||
int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
|
||||
{
|
||||
bool append_file = false,
|
||||
sync_run = false;
|
||||
bool append_file = false;
|
||||
int output_fd = 0;
|
||||
const char *output_name = NULL;
|
||||
const struct option options[] = {
|
||||
|
|
@ -1114,6 +1143,10 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
|
|||
OPT_BOOLEAN(0, "append", &append_file, "append to the output file"),
|
||||
OPT_INTEGER(0, "log-fd", &output_fd,
|
||||
"log output to fd, instead of stderr"),
|
||||
OPT_STRING(0, "pre", &pre_cmd, "command",
|
||||
"command to run prior to the measured command"),
|
||||
OPT_STRING(0, "post", &post_cmd, "command",
|
||||
"command to run after to the measured command"),
|
||||
OPT_END()
|
||||
};
|
||||
const char * const stat_usage[] = {
|
||||
|
|
@ -1238,9 +1271,6 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
|
|||
fprintf(output, "[ perf stat: executing run #%d ... ]\n",
|
||||
run_idx + 1);
|
||||
|
||||
if (sync_run)
|
||||
sync();
|
||||
|
||||
status = run_perf_stat(argc, argv);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -183,9 +183,8 @@ _gea_err = $(if $(1),$(error Please set '$(1)' appropriately))
|
|||
# Usage: option = $(call try-cc, source-to-build, cc-options, msg)
|
||||
ifndef V
|
||||
TRY_CC_OUTPUT= > /dev/null 2>&1
|
||||
else
|
||||
TRY_CC_MSG=echo "CHK $(3)" 1>&2;
|
||||
endif
|
||||
TRY_CC_MSG=echo " CHK $(3)" 1>&2;
|
||||
|
||||
try-cc = $(shell sh -c \
|
||||
'TMP="$(OUTPUT)$(TMPOUT).$$$$"; \
|
||||
|
|
|
|||
|
|
@ -16,7 +16,7 @@
|
|||
#include "session.h"
|
||||
#include "tool.h"
|
||||
|
||||
static int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused,
|
||||
int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused,
|
||||
union perf_event *event,
|
||||
struct perf_sample *sample __maybe_unused,
|
||||
struct perf_evsel *evsel __maybe_unused,
|
||||
|
|
|
|||
|
|
@ -7,4 +7,8 @@ extern struct perf_tool build_id__mark_dso_hit_ops;
|
|||
|
||||
char *dso__build_id_filename(struct dso *self, char *bf, size_t size);
|
||||
|
||||
int build_id__mark_dso_hit(struct perf_tool *tool, union perf_event *event,
|
||||
struct perf_sample *sample, struct perf_evsel *evsel,
|
||||
struct machine *machine);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in New Issue