mirror of
https://gitlab.gnome.org/GNOME/gtk.git
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5a5b30681e
Instead of using sysprof-cli to profile subprocesses, this uses libsysprof's SysprofProfiler directly so that we can avoid an indirect subprocess as well as disabling the polkit nag. To do this, we have to link against libsysprof instead of libsysprof-capture. This is limited to the -Dbuild-tests=true and -Dprofiler=true case.
269 lines
7.3 KiB
C
269 lines
7.3 KiB
C
#include <errno.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sysprof.h>
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#include <gio/gio.h>
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typedef struct {
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const char *mark;
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const char *detail;
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gboolean do_start;
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gint64 start_time;
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gint64 value;
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} Data;
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static bool
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callback (const SysprofCaptureFrame *frame,
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gpointer user_data)
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{
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Data *data = user_data;
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if (frame->type == SYSPROF_CAPTURE_FRAME_MARK)
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{
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SysprofCaptureMark *mark = (SysprofCaptureMark *)frame;
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if (strcmp (mark->group, "gtk") == 0 &&
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strcmp (mark->name, data->mark) == 0 &&
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(data->detail == NULL || strcmp (mark->message, data->detail) == 0))
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{
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if (data->do_start)
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data->value = frame->time - data->start_time;
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else
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data->value = mark->duration;
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return FALSE;
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}
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}
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return TRUE;
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}
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#define MILLISECONDS(v) ((v) / (1000.0 * G_TIME_SPAN_MILLISECOND))
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static int opt_rep = 10;
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static char *opt_mark;
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static char *opt_detail;
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static char *opt_name;
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static char *opt_output;
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static gboolean opt_start_time;
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static GMainLoop *main_loop;
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static GError *failure;
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static GOptionEntry options[] = {
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{ "mark", 0, G_OPTION_FLAG_NONE, G_OPTION_ARG_STRING, &opt_mark, "Name of the mark", "NAME" },
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{ "detail", 0, G_OPTION_FLAG_NONE, G_OPTION_ARG_STRING, &opt_detail, "Detail of the mark", "DETAIL" },
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{ "start", 0, G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_start_time, "Measure the start time", NULL },
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{ "runs", '0', G_OPTION_FLAG_NONE, G_OPTION_ARG_INT, &opt_rep, "Number of runs", "COUNT" },
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{ "name", '0', G_OPTION_FLAG_NONE, G_OPTION_ARG_STRING, &opt_name, "Name of this test", "NAME" },
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{ "output", '0', G_OPTION_FLAG_NONE, G_OPTION_ARG_STRING, &opt_output, "Directory to save syscap files", "DIRECTORY" },
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{ NULL, }
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};
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static gboolean
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start_in_main (gpointer data)
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{
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SysprofProfiler *profiler = data;
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sysprof_profiler_start (profiler);
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return G_SOURCE_REMOVE;
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}
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static void
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on_failure_cb (SysprofProfiler *profiler,
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const GError *error)
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{
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g_propagate_error (&failure, g_error_copy (error));
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g_main_loop_quit (main_loop);
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}
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static void
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on_stopped_cb (SysprofProfiler *profiler)
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{
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g_clear_error (&failure);
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g_main_loop_quit (main_loop);
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}
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int
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main (int argc, char *argv[])
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{
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GOptionContext *context;
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GError *error = NULL;
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Data data;
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SysprofCaptureFrameType type;
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gint64 *values;
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gint64 min, max, total;
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int count;
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char *output_dir = NULL;
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char **spawn_env;
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char *workdir;
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int i, j;
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context = g_option_context_new ("COMMANDLINE");
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g_option_context_add_main_entries (context, options, NULL);
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if (!g_option_context_parse (context, &argc, &argv, &error))
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g_error ("Parsing options: %s", error->message);
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if (argc < 2)
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{
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g_print ("Usage: %s [OPTIONS] COMMANDLINE\n", argv[0]);
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exit (1);
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}
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if (opt_rep < 1)
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g_error ("COUNT must be a positive number");
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main_loop = g_main_loop_new (NULL, FALSE);
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workdir = g_get_current_dir ();
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spawn_env = g_get_environ ();
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spawn_env = g_environ_setenv (spawn_env, "GTK_DEBUG_AUTO_QUIT", "1", TRUE);
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if (opt_output)
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{
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GError *err = NULL;
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GFile *file;
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const char *subdir;
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file = g_file_new_for_commandline_arg (opt_output);
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subdir = g_getenv ("TEST_OUTPUT_SUBDIR");
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if (subdir)
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{
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GFile *child = g_file_get_child (file, subdir);
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g_object_unref (file);
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file = child;
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}
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if (!g_file_make_directory_with_parents (file, NULL, &err))
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{
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if (!g_error_matches (err, G_IO_ERROR, G_IO_ERROR_EXISTS))
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g_error ("%s", err->message);
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}
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output_dir = g_file_get_path (file);
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g_object_unref (file);
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}
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opt_rep++;
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values = g_new (gint64, opt_rep);
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for (i = 0; i < opt_rep; i++)
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{
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SysprofProfiler *profiler;
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int fd;
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char *name;
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SysprofCaptureWriter *writer;
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SysprofCaptureReader *reader;
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SysprofCaptureCursor *cursor;
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SysprofCaptureCondition *condition;
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char **child_argv;
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fd = g_file_open_tmp ("gtk.XXXXXX.syscap", &name, &error);
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if (error)
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g_error ("Create syscap file: %s", error->message);
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child_argv = g_new (char *, argc);
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for (j = 0; j + 1 < argc; j++)
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child_argv[j] = argv[j + 1];
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child_argv[argc - 1] = NULL;
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writer = sysprof_capture_writer_new_from_fd (fd, 0);
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if (!writer)
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g_error ("Failed to create capture writer: %s", g_strerror (errno));
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profiler = sysprof_local_profiler_new ();
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sysprof_profiler_set_whole_system (profiler, FALSE);
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sysprof_profiler_set_spawn (profiler, TRUE);
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sysprof_profiler_set_spawn_argv (profiler, (const char * const *)child_argv);
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sysprof_profiler_set_spawn_cwd (profiler, workdir);
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sysprof_profiler_set_spawn_env (profiler, (const char * const *)spawn_env);
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sysprof_profiler_set_writer (profiler, writer);
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sysprof_capture_writer_unref (writer);
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g_free (child_argv);
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g_signal_connect_swapped (profiler, "failed", G_CALLBACK (on_failure_cb), NULL);
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g_signal_connect_swapped (profiler, "stopped", G_CALLBACK (on_stopped_cb), NULL);
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g_idle_add (start_in_main, profiler);
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g_main_loop_run (main_loop);
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if (failure)
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g_error ("Run child: %s", failure->message);
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reader = sysprof_capture_writer_create_reader (writer);
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if (!reader)
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g_error ("Opening syscap file: %s", g_strerror (errno));
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sysprof_capture_writer_unref (writer);
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data.mark = opt_mark ? opt_mark : "css validation";
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data.detail = opt_detail ? opt_detail : NULL;
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data.do_start = opt_start_time;
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data.start_time = sysprof_capture_reader_get_start_time (reader);
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data.value = 0;
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cursor = sysprof_capture_cursor_new (reader);
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type = SYSPROF_CAPTURE_FRAME_MARK;
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condition = sysprof_capture_condition_new_where_type_in (1, &type);
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sysprof_capture_cursor_add_condition (cursor, condition);
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sysprof_capture_cursor_foreach (cursor, callback, &data);
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values[i] = data.value;
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sysprof_capture_cursor_unref (cursor);
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sysprof_capture_reader_unref (reader);
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if (output_dir)
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{
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GFile *src, *dest;
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char * save_to;
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save_to = g_strdup_printf ("%s/%s.%d.syscap", output_dir, opt_name ? opt_name : "gtk", i);
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src = g_file_new_for_path (name);
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dest = g_file_new_for_path (save_to);
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if (!g_file_copy (src, dest, G_FILE_COPY_OVERWRITE, NULL, NULL, NULL, &error))
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g_error ("%s", error->message);
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g_free (save_to);
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g_object_unref (src);
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g_object_unref (dest);
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}
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else
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remove (name);
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g_free (name);
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/* A poor mans way to try and isolate the runs from each other */
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g_usleep (300000);
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}
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g_free (workdir);
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min = G_MAXINT64;
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max = 0;
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count = 0;
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total = 0;
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/* Ignore the first run, to avoid cache effects */
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for (i = 1; i < opt_rep; i++)
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{
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if (min > values[i])
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min = values[i];
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if (max < values[i])
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max = values[i];
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count++;
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total += values[i];
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}
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g_print ("%d runs, min %g, max %g, avg %g\n",
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count,
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MILLISECONDS (min),
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MILLISECONDS (max),
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MILLISECONDS (total / count));
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}
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