linux/tools/perf/builtin-data.c
Wang Nan 9e1a7ea19f perf data ctf: Add '--all' option for 'perf data convert'
After this patch, 'perf data convert' convert comm events to output CTF
stream.

Result:

  # perf record -a sleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.378 MB perf.data (73 samples)  ]

  # perf data convert --to-ctf ./out.ctf
  [ perf data convert: Converted 'perf.data' into CTF data './out.ctf' ]
  [ perf data convert: Converted and wrote 0.003 MB (73 samples) ]

  # babeltrace --clock-seconds ./out.ctf/
  [10627.402515791] (+?.?????????) cycles:ppp: { cpu_id = 0 }, { perf_ip = 0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 }
  [10627.402518972] (+0.000003181) cycles:ppp: { cpu_id = 0 }, { perf_ip = 0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 }
  ...    // only sample event is converted

  # perf data convert --all --to-ctf ./out.ctf
  [ perf data convert: Converted 'perf.data' into CTF data './out.ctf' ]
  [ perf data convert: Converted and wrote 0.023 MB (73 samples, 384 non-samples) ]

  # babeltrace --clock-seconds ./out.ctf/
  [  0.000000000] (+?.?????????) perf_comm: { cpu_id = 0 }, { pid = 1, tid = 1, comm = "init" }
  [  0.000000000] (+0.000000000) perf_comm: { cpu_id = 0 }, { pid = 2, tid = 2, comm = "kthreadd" }
  [  0.000000000] (+0.000000000) perf_comm: { cpu_id = 0 }, { pid = 3, tid = 3, comm = "ksoftirqd/0" }
  ...    // comm events are converted
  [10627.402515791] (+10627.402515791) cycles:ppp: { cpu_id = 0 }, { perf_ip = 0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 }
  [10627.402518972] (+0.000003181) cycles:ppp: { cpu_id = 0 }, { perf_ip = 0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 }
  ...    // samples are also converted

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1466767332-114472-7-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28 10:54:57 -03:00

129 lines
2.7 KiB
C

#include <linux/compiler.h>
#include "builtin.h"
#include "perf.h"
#include "debug.h"
#include <subcmd/parse-options.h>
#include "data-convert.h"
#include "data-convert-bt.h"
typedef int (*data_cmd_fn_t)(int argc, const char **argv, const char *prefix);
struct data_cmd {
const char *name;
const char *summary;
data_cmd_fn_t fn;
};
static struct data_cmd data_cmds[];
#define for_each_cmd(cmd) \
for (cmd = data_cmds; cmd && cmd->name; cmd++)
static const struct option data_options[] = {
OPT_END()
};
static const char * const data_subcommands[] = { "convert", NULL };
static const char *data_usage[] = {
"perf data [<common options>] <command> [<options>]",
NULL
};
static void print_usage(void)
{
struct data_cmd *cmd;
printf("Usage:\n");
printf("\t%s\n\n", data_usage[0]);
printf("\tAvailable commands:\n");
for_each_cmd(cmd) {
printf("\t %s\t- %s\n", cmd->name, cmd->summary);
}
printf("\n");
}
static const char * const data_convert_usage[] = {
"perf data convert [<options>]",
NULL
};
static int cmd_data_convert(int argc, const char **argv,
const char *prefix __maybe_unused)
{
const char *to_ctf = NULL;
struct perf_data_convert_opts opts = {
.force = false,
.all = false,
};
const struct option options[] = {
OPT_INCR('v', "verbose", &verbose, "be more verbose"),
OPT_STRING('i', "input", &input_name, "file", "input file name"),
#ifdef HAVE_LIBBABELTRACE_SUPPORT
OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
#endif
OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"),
OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"),
OPT_END()
};
#ifndef HAVE_LIBBABELTRACE_SUPPORT
pr_err("No conversion support compiled in.\n");
return -1;
#endif
argc = parse_options(argc, argv, options,
data_convert_usage, 0);
if (argc) {
usage_with_options(data_convert_usage, options);
return -1;
}
if (to_ctf) {
#ifdef HAVE_LIBBABELTRACE_SUPPORT
return bt_convert__perf2ctf(input_name, to_ctf, &opts);
#else
pr_err("The libbabeltrace support is not compiled in.\n");
return -1;
#endif
}
return 0;
}
static struct data_cmd data_cmds[] = {
{ "convert", "converts data file between formats", cmd_data_convert },
{ .name = NULL, },
};
int cmd_data(int argc, const char **argv, const char *prefix)
{
struct data_cmd *cmd;
const char *cmdstr;
/* No command specified. */
if (argc < 2)
goto usage;
argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
if (argc < 1)
goto usage;
cmdstr = argv[0];
for_each_cmd(cmd) {
if (strcmp(cmd->name, cmdstr))
continue;
return cmd->fn(argc, argv, prefix);
}
pr_err("Unknown command: %s\n", cmdstr);
usage:
print_usage();
return -1;
}