#include <linux/unistd.h>
#include <linux/types.h>
-void get_term_dimensions(struct winsize *ws)
-{
- char *s = getenv("LINES");
-
- if (s != NULL) {
- ws->ws_row = atoi(s);
- s = getenv("COLUMNS");
- if (s != NULL) {
- ws->ws_col = atoi(s);
- if (ws->ws_row && ws->ws_col)
- return;
- }
- }
-#ifdef TIOCGWINSZ
- if (ioctl(1, TIOCGWINSZ, ws) == 0 &&
- ws->ws_row && ws->ws_col)
- return;
-#endif
- ws->ws_row = 25;
- ws->ws_col = 80;
-}
+static volatile int done;
static void perf_top__update_print_entries(struct perf_top *top)
{
printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name);
printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter);
- more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel->idx,
+ more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel,
0, top->sym_pcnt_filter, top->print_entries, 4);
if (top->zero)
symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx);
{
struct hist_entry *he;
- he = __hists__add_entry(&evsel->hists, al, NULL, sample->period);
+ he = __hists__add_entry(&evsel->hists, al, NULL, sample->period,
+ sample->weight);
if (he == NULL)
return NULL;
return 0;
}
-static void perf_top__handle_keypress(struct perf_top *top, int c)
+static bool perf_top__handle_keypress(struct perf_top *top, int c)
{
+ bool ret = true;
+
if (!perf_top__key_mapped(top, c)) {
struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
struct termios tc, save;
tcsetattr(0, TCSAFLUSH, &save);
if (!perf_top__key_mapped(top, c))
- return;
+ return ret;
}
switch (c) {
printf("exiting.\n");
if (top->dump_symtab)
perf_session__fprintf_dsos(top->session, stderr);
- exit(0);
+ ret = false;
+ break;
case 's':
perf_top__prompt_symbol(top, "Enter details symbol");
break;
default:
break;
}
+
+ return ret;
}
static void perf_top__sort_new_samples(void *arg)
* via --uid.
*/
list_for_each_entry(pos, &top->evlist->entries, node)
- pos->hists.uid_filter_str = top->target.uid_str;
+ pos->hists.uid_filter_str = top->record_opts.target.uid_str;
perf_evlist__tui_browse_hists(top->evlist, help, &hbt,
&top->session->header.env);
- exit_browser(0);
- exit(0);
+ done = 1;
return NULL;
}
/* trash return*/
getc(stdin);
- while (1) {
+ while (!done) {
perf_top__print_sym_table(top);
/*
* Either timeout expired or we got an EINTR due to SIGWINCH,
continue;
/* Fall trhu */
default:
- goto process_hotkey;
+ c = getc(stdin);
+ tcsetattr(0, TCSAFLUSH, &save);
+
+ if (perf_top__handle_keypress(top, c))
+ goto repeat;
+ done = 1;
}
}
-process_hotkey:
- c = getc(stdin);
- tcsetattr(0, TCSAFLUSH, &save);
-
- perf_top__handle_keypress(top, c);
- goto repeat;
return NULL;
}
static struct intlist *seen;
if (!seen)
- seen = intlist__new();
+ seen = intlist__new(NULL);
if (!intlist__has_entry(seen, event->ip.pid)) {
pr_err("Can't find guest [%d]'s kernel information\n",
}
if (!machine) {
- pr_err("%u unprocessable samples recorded.",
- top->session->hists.stats.nr_unprocessable_samples++);
+ pr_err("%u unprocessable samples recorded.\r",
+ top->session->stats.nr_unprocessable_samples++);
return;
}
++top->us_samples;
if (top->hide_user_symbols)
continue;
- machine = perf_session__find_host_machine(session);
+ machine = &session->machines.host;
break;
case PERF_RECORD_MISC_KERNEL:
++top->kernel_samples;
if (top->hide_kernel_symbols)
continue;
- machine = perf_session__find_host_machine(session);
+ machine = &session->machines.host;
break;
case PERF_RECORD_MISC_GUEST_KERNEL:
++top->guest_kernel_samples;
hists__inc_nr_events(&evsel->hists, event->header.type);
machine__process_event(machine, event);
} else
- ++session->hists.stats.nr_unknown_events;
+ ++session->stats.nr_unknown_events;
}
}
perf_top__mmap_read_idx(top, i);
}
-static void perf_top__start_counters(struct perf_top *top)
+static int perf_top__start_counters(struct perf_top *top)
{
+ char msg[512];
struct perf_evsel *counter;
struct perf_evlist *evlist = top->evlist;
+ struct perf_record_opts *opts = &top->record_opts;
- if (top->group)
- perf_evlist__set_leader(evlist);
+ perf_evlist__config(evlist, opts);
list_for_each_entry(counter, &evlist->entries, node) {
- struct perf_event_attr *attr = &counter->attr;
-
- attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID;
-
- if (top->freq) {
- attr->sample_type |= PERF_SAMPLE_PERIOD;
- attr->freq = 1;
- attr->sample_freq = top->freq;
- }
-
- if (evlist->nr_entries > 1) {
- attr->sample_type |= PERF_SAMPLE_ID;
- attr->read_format |= PERF_FORMAT_ID;
- }
-
- if (perf_target__has_cpu(&top->target))
- attr->sample_type |= PERF_SAMPLE_CPU;
-
- if (symbol_conf.use_callchain)
- attr->sample_type |= PERF_SAMPLE_CALLCHAIN;
-
- attr->mmap = 1;
- attr->comm = 1;
- attr->inherit = top->inherit;
-fallback_missing_features:
- if (top->exclude_guest_missing)
- attr->exclude_guest = attr->exclude_host = 0;
-retry_sample_id:
- attr->sample_id_all = top->sample_id_all_missing ? 0 : 1;
try_again:
if (perf_evsel__open(counter, top->evlist->cpus,
top->evlist->threads) < 0) {
- int err = errno;
-
- if (err == EPERM || err == EACCES) {
- ui__error_paranoid();
- goto out_err;
- } else if (err == EINVAL) {
- if (!top->exclude_guest_missing &&
- (attr->exclude_guest || attr->exclude_host)) {
- pr_debug("Old kernel, cannot exclude "
- "guest or host samples.\n");
- top->exclude_guest_missing = true;
- goto fallback_missing_features;
- } else if (!top->sample_id_all_missing) {
- /*
- * Old kernel, no attr->sample_id_type_all field
- */
- top->sample_id_all_missing = true;
- goto retry_sample_id;
- }
- }
- /*
- * If it's cycles then fall back to hrtimer
- * based cpu-clock-tick sw counter, which
- * is always available even if no PMU support:
- */
- if ((err == ENOENT || err == ENXIO) &&
- (attr->type == PERF_TYPE_HARDWARE) &&
- (attr->config == PERF_COUNT_HW_CPU_CYCLES)) {
-
+ if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) {
if (verbose)
- ui__warning("Cycles event not supported,\n"
- "trying to fall back to cpu-clock-ticks\n");
-
- attr->type = PERF_TYPE_SOFTWARE;
- attr->config = PERF_COUNT_SW_CPU_CLOCK;
- if (counter->name) {
- free(counter->name);
- counter->name = NULL;
- }
+ ui__warning("%s\n", msg);
goto try_again;
}
- if (err == ENOENT) {
- ui__error("The %s event is not supported.\n",
- perf_evsel__name(counter));
- goto out_err;
- } else if (err == EMFILE) {
- ui__error("Too many events are opened.\n"
- "Try again after reducing the number of events\n");
- goto out_err;
- } else if ((err == EOPNOTSUPP) && (attr->precise_ip)) {
- ui__error("\'precise\' request may not be supported. "
- "Try removing 'p' modifier\n");
- goto out_err;
- }
-
- ui__error("The sys_perf_event_open() syscall "
- "returned with %d (%s). /bin/dmesg "
- "may provide additional information.\n"
- "No CONFIG_PERF_EVENTS=y kernel support "
- "configured?\n", err, strerror(err));
+ perf_evsel__open_strerror(counter, &opts->target,
+ errno, msg, sizeof(msg));
+ ui__error("%s\n", msg);
goto out_err;
}
}
- if (perf_evlist__mmap(evlist, top->mmap_pages, false) < 0) {
+ if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) {
ui__error("Failed to mmap with %d (%s)\n",
errno, strerror(errno));
goto out_err;
}
- return;
+ return 0;
out_err:
- exit_browser(0);
- exit(0);
+ return -1;
}
static int perf_top__setup_sample_type(struct perf_top *top)
ui__error("Selected -g but \"sym\" not present in --sort/-s.");
return -EINVAL;
}
- } else if (!top->dont_use_callchains && callchain_param.mode != CHAIN_NONE) {
+ } else if (callchain_param.mode != CHAIN_NONE) {
if (callchain_register_param(&callchain_param) < 0) {
ui__error("Can't register callchain params.\n");
return -EINVAL;
static int __cmd_top(struct perf_top *top)
{
+ struct perf_record_opts *opts = &top->record_opts;
pthread_t thread;
int ret;
/*
if (ret)
goto out_delete;
- if (perf_target__has_task(&top->target))
+ if (perf_target__has_task(&opts->target))
perf_event__synthesize_thread_map(&top->tool, top->evlist->threads,
perf_event__process,
- &top->session->host_machine);
+ &top->session->machines.host);
else
perf_event__synthesize_threads(&top->tool, perf_event__process,
- &top->session->host_machine);
- perf_top__start_counters(top);
+ &top->session->machines.host);
+
+ ret = perf_top__start_counters(top);
+ if (ret)
+ goto out_delete;
+
top->session->evlist = top->evlist;
perf_session__set_id_hdr_size(top->session);
+ /*
+ * When perf is starting the traced process, all the events (apart from
+ * group members) have enable_on_exec=1 set, so don't spoil it by
+ * prematurely enabling them.
+ *
+ * XXX 'top' still doesn't start workloads like record, trace, but should,
+ * so leave the check here.
+ */
+ if (!perf_target__none(&opts->target))
+ perf_evlist__enable(top->evlist);
+
/* Wait for a minimal set of events before starting the snapshot */
poll(top->evlist->pollfd, top->evlist->nr_fds, 100);
perf_top__mmap_read(top);
+ ret = -1;
if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui :
display_thread), top)) {
ui__error("Could not create display thread.\n");
- exit(-1);
+ goto out_delete;
}
if (top->realtime_prio) {
param.sched_priority = top->realtime_prio;
if (sched_setscheduler(0, SCHED_FIFO, ¶m)) {
ui__error("Could not set realtime priority.\n");
- exit(-1);
+ goto out_delete;
}
}
- while (1) {
+ while (!done) {
u64 hits = top->samples;
perf_top__mmap_read(top);
ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100);
}
+ ret = 0;
out_delete:
perf_session__delete(top->session);
top->session = NULL;
- return 0;
+ return ret;
}
static int
parse_callchain_opt(const struct option *opt, const char *arg, int unset)
{
- struct perf_top *top = (struct perf_top *)opt->value;
- char *tok, *tok2;
- char *endptr;
-
/*
* --no-call-graph
*/
- if (unset) {
- top->dont_use_callchains = true;
+ if (unset)
return 0;
- }
symbol_conf.use_callchain = true;
- if (!arg)
- return 0;
-
- tok = strtok((char *)arg, ",");
- if (!tok)
- return -1;
-
- /* get the output mode */
- if (!strncmp(tok, "graph", strlen(arg)))
- callchain_param.mode = CHAIN_GRAPH_ABS;
-
- else if (!strncmp(tok, "flat", strlen(arg)))
- callchain_param.mode = CHAIN_FLAT;
-
- else if (!strncmp(tok, "fractal", strlen(arg)))
- callchain_param.mode = CHAIN_GRAPH_REL;
-
- else if (!strncmp(tok, "none", strlen(arg))) {
- callchain_param.mode = CHAIN_NONE;
- symbol_conf.use_callchain = false;
-
- return 0;
- } else
- return -1;
-
- /* get the min percentage */
- tok = strtok(NULL, ",");
- if (!tok)
- goto setup;
-
- callchain_param.min_percent = strtod(tok, &endptr);
- if (tok == endptr)
- return -1;
-
- /* get the print limit */
- tok2 = strtok(NULL, ",");
- if (!tok2)
- goto setup;
-
- if (tok2[0] != 'c') {
- callchain_param.print_limit = strtod(tok2, &endptr);
- tok2 = strtok(NULL, ",");
- if (!tok2)
- goto setup;
- }
-
- /* get the call chain order */
- if (!strcmp(tok2, "caller"))
- callchain_param.order = ORDER_CALLER;
- else if (!strcmp(tok2, "callee"))
- callchain_param.order = ORDER_CALLEE;
- else
- return -1;
-setup:
- if (callchain_register_param(&callchain_param) < 0) {
- fprintf(stderr, "Can't register callchain params\n");
- return -1;
- }
- return 0;
+ return record_parse_callchain_opt(opt, arg, unset);
}
int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
{
- struct perf_evsel *pos;
int status;
char errbuf[BUFSIZ];
struct perf_top top = {
.count_filter = 5,
.delay_secs = 2,
- .freq = 4000, /* 4 KHz */
- .mmap_pages = 128,
- .sym_pcnt_filter = 5,
- .target = {
- .uses_mmap = true,
+ .record_opts = {
+ .mmap_pages = UINT_MAX,
+ .user_freq = UINT_MAX,
+ .user_interval = ULLONG_MAX,
+ .freq = 4000, /* 4 KHz */
+ .target = {
+ .uses_mmap = true,
+ },
},
+ .sym_pcnt_filter = 5,
};
- char callchain_default_opt[] = "fractal,0.5,callee";
+ struct perf_record_opts *opts = &top.record_opts;
+ struct perf_target *target = &opts->target;
const struct option options[] = {
OPT_CALLBACK('e', "event", &top.evlist, "event",
"event selector. use 'perf list' to list available events",
parse_events_option),
- OPT_INTEGER('c', "count", &top.default_interval,
- "event period to sample"),
- OPT_STRING('p', "pid", &top.target.pid, "pid",
+ OPT_U64('c', "count", &opts->user_interval, "event period to sample"),
+ OPT_STRING('p', "pid", &target->pid, "pid",
"profile events on existing process id"),
- OPT_STRING('t', "tid", &top.target.tid, "tid",
+ OPT_STRING('t', "tid", &target->tid, "tid",
"profile events on existing thread id"),
- OPT_BOOLEAN('a', "all-cpus", &top.target.system_wide,
+ OPT_BOOLEAN('a', "all-cpus", &target->system_wide,
"system-wide collection from all CPUs"),
- OPT_STRING('C', "cpu", &top.target.cpu_list, "cpu",
+ OPT_STRING('C', "cpu", &target->cpu_list, "cpu",
"list of cpus to monitor"),
OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
"file", "vmlinux pathname"),
OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols,
"hide kernel symbols"),
- OPT_UINTEGER('m', "mmap-pages", &top.mmap_pages, "number of mmap data pages"),
+ OPT_UINTEGER('m', "mmap-pages", &opts->mmap_pages,
+ "number of mmap data pages"),
OPT_INTEGER('r', "realtime", &top.realtime_prio,
"collect data with this RT SCHED_FIFO priority"),
OPT_INTEGER('d', "delay", &top.delay_secs,
"dump the symbol table used for profiling"),
OPT_INTEGER('f', "count-filter", &top.count_filter,
"only display functions with more events than this"),
- OPT_BOOLEAN('g', "group", &top.group,
+ OPT_BOOLEAN('g', "group", &opts->group,
"put the counters into a counter group"),
- OPT_BOOLEAN('i', "inherit", &top.inherit,
- "child tasks inherit counters"),
+ OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit,
+ "child tasks do not inherit counters"),
OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name",
"symbol to annotate"),
- OPT_BOOLEAN('z', "zero", &top.zero,
- "zero history across updates"),
- OPT_INTEGER('F', "freq", &top.freq,
- "profile at this frequency"),
+ OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"),
+ OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"),
OPT_INTEGER('E', "entries", &top.print_entries,
"display this many functions"),
OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols,
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show counter open errors, etc)"),
OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
- "sort by key(s): pid, comm, dso, symbol, parent"),
+ "sort by key(s): pid, comm, dso, symbol, parent, weight, local_weight"),
OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
"Show a column with the number of samples"),
- OPT_CALLBACK_DEFAULT('G', "call-graph", &top, "output_type,min_percent, call_order",
- "Display callchains using output_type (graph, flat, fractal, or none), min percent threshold and callchain order. "
- "Default: fractal,0.5,callee", &parse_callchain_opt,
- callchain_default_opt),
+ OPT_CALLBACK_DEFAULT('G', "call-graph", &top.record_opts,
+ "mode[,dump_size]", record_callchain_help,
+ &parse_callchain_opt, "fp"),
OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
"Show a column with the sum of periods"),
OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
"Display raw encoding of assembly instructions (default)"),
OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
"Specify disassembler style (e.g. -M intel for intel syntax)"),
- OPT_STRING('u', "uid", &top.target.uid_str, "user", "user to profile"),
+ OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"),
OPT_END()
};
const char * const top_usage[] = {
NULL
};
- top.evlist = perf_evlist__new(NULL, NULL);
+ top.evlist = perf_evlist__new();
if (top.evlist == NULL)
return -ENOMEM;
if (sort_order == default_sort_order)
sort_order = "dso,symbol";
- setup_sorting(top_usage, options);
+ if (setup_sorting() < 0)
+ usage_with_options(top_usage, options);
if (top.use_stdio)
use_browser = 0;
setup_browser(false);
- status = perf_target__validate(&top.target);
+ status = perf_target__validate(target);
if (status) {
- perf_target__strerror(&top.target, status, errbuf, BUFSIZ);
+ perf_target__strerror(target, status, errbuf, BUFSIZ);
ui__warning("%s", errbuf);
}
- status = perf_target__parse_uid(&top.target);
+ status = perf_target__parse_uid(target);
if (status) {
int saved_errno = errno;
- perf_target__strerror(&top.target, status, errbuf, BUFSIZ);
+ perf_target__strerror(target, status, errbuf, BUFSIZ);
ui__error("%s", errbuf);
status = -saved_errno;
goto out_delete_evlist;
}
- if (perf_target__none(&top.target))
- top.target.system_wide = true;
+ if (perf_target__none(target))
+ target->system_wide = true;
- if (perf_evlist__create_maps(top.evlist, &top.target) < 0)
+ if (perf_evlist__create_maps(top.evlist, target) < 0)
usage_with_options(top_usage, options);
if (!top.evlist->nr_entries &&
perf_evlist__add_default(top.evlist) < 0) {
ui__error("Not enough memory for event selector list\n");
- return -ENOMEM;
+ goto out_delete_maps;
}
symbol_conf.nr_events = top.evlist->nr_entries;
if (top.delay_secs < 1)
top.delay_secs = 1;
+ if (opts->user_interval != ULLONG_MAX)
+ opts->default_interval = opts->user_interval;
+ if (opts->user_freq != UINT_MAX)
+ opts->freq = opts->user_freq;
+
/*
* User specified count overrides default frequency.
*/
- if (top.default_interval)
- top.freq = 0;
- else if (top.freq) {
- top.default_interval = top.freq;
+ if (opts->default_interval)
+ opts->freq = 0;
+ else if (opts->freq) {
+ opts->default_interval = opts->freq;
} else {
ui__error("frequency and count are zero, aborting\n");
- exit(EXIT_FAILURE);
- }
-
- list_for_each_entry(pos, &top.evlist->entries, node) {
- /*
- * Fill in the ones not specifically initialized via -c:
- */
- if (!pos->attr.sample_period)
- pos->attr.sample_period = top.default_interval;
+ status = -EINVAL;
+ goto out_delete_maps;
}
top.sym_evsel = perf_evlist__first(top.evlist);
status = __cmd_top(&top);
+out_delete_maps:
+ perf_evlist__delete_maps(top.evlist);
out_delete_evlist:
perf_evlist__delete(top.evlist);
projects / ~andy / linux / blobdiff