2 * Copyright (C) 2076 Robin Gareus <robin@gareus.org>
3 * Copyright (C) 2011 Paul Davis
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 #include <gtkmm/button.h>
22 #include <gtkmm/table.h>
24 #ifdef PLATFORM_WINDOWS
25 #include <pbd/windows_timer_utils.h>
28 #include "temporal/time.h"
30 #include "idleometer.h"
33 static int64_t _x_get_monotonic_usec() {
34 #ifdef PLATFORM_WINDOWS
35 return PBD::get_microseconds();
37 return g_get_monotonic_time();
42 IdleOMeter::IdleOMeter ()
43 : ArdourDialog (_("Idle O Meter"))
45 get_vbox()->set_spacing (8);
46 Label* l = manage (new Label (_("<b>GUI Idle Timing Statistics</b>"), ALIGN_CENTER));
49 HBox* hbox = manage (new HBox ());
50 Table* t = manage (new Table ());
51 hbox->pack_start (*t, true, false);
53 Button* b = manage (new Button (_("Reset")));
54 b->signal_clicked().connect (sigc::mem_fun(*this, &IdleOMeter::reset));
56 get_vbox()->pack_start (*l, false, false);
57 get_vbox()->pack_start (*hbox, false, false);
58 get_vbox()->pack_start (*b, false, false);
60 _label_cur.set_alignment (ALIGN_RIGHT, ALIGN_CENTER);
61 _label_min.set_alignment (ALIGN_RIGHT, ALIGN_CENTER);
62 _label_max.set_alignment (ALIGN_RIGHT, ALIGN_CENTER);
63 _label_avg.set_alignment (ALIGN_RIGHT, ALIGN_CENTER);
64 _label_dev.set_alignment (ALIGN_RIGHT, ALIGN_CENTER);
65 _label_acq.set_alignment (ALIGN_CENTER, ALIGN_CENTER);
68 t->attach (*manage (new Label (_("Current:"), ALIGN_RIGHT)), 0, 1, row, row + 1, FILL, SHRINK);
69 t->attach (_label_cur, 1, 2, row, row + 1, FILL, SHRINK);
71 t->attach (*manage (new Label (_("Min:"), ALIGN_RIGHT)), 0, 1, row, row + 1, FILL, SHRINK);
72 t->attach (_label_min, 1, 2, row, row + 1, FILL, SHRINK);
74 t->attach (*manage (new Label (_("Max:"), ALIGN_RIGHT)), 0, 1, row, row + 1, FILL, SHRINK);
75 t->attach (_label_max, 1, 2, row, row + 1, FILL, SHRINK);
77 t->attach (*manage (new Label (_("Mean:"), ALIGN_RIGHT)), 0, 1, row, row + 1, FILL, SHRINK);
78 t->attach (_label_avg, 1, 2, row, row + 1, FILL, SHRINK);
80 t->attach (*manage (new Label (_("\u03c3:"), ALIGN_RIGHT)), 0, 1, row, row + 1, FILL, SHRINK);
81 t->attach (_label_dev, 1, 2, row, row + 1, FILL, SHRINK);
83 t->attach (*manage (new Label (_("Elapsed:"), ALIGN_RIGHT)), 0, 1, row, row + 1, FILL, SHRINK);
84 t->attach (_label_acq, 1, 2, row, row + 1, FILL, SHRINK);
87 IdleOMeter::~IdleOMeter ()
89 _idle_connection.disconnect ();
95 const int64_t now = _x_get_monotonic_usec ();
96 const int64_t elapsed = now - _last;
98 _max = std::max (_max, elapsed);
99 _min = std::min (_min, elapsed);
104 const double cnt = _cnt;
106 /* running variance */
111 const double var_m1 = _var_m;
112 const double t = elapsed;
113 _var_m += (t - _var_m) / cnt;
114 _var_s += (t - _var_m) * (t - var_m1);
117 if (now - _last_display < 100000 || _cnt < 2) {
121 const double avg = _total / cnt;
122 const double stddev = sqrt (_var_s / (_cnt - 1.0));
127 snprintf (buf, sizeof(buf), "%8.2f ms", elapsed / 1000.0);
128 _label_cur.set_text (buf);
129 snprintf (buf, sizeof(buf), "%8.2f ms", _min / 1000.0);
130 _label_min.set_text (buf);
131 snprintf (buf, sizeof(buf), "%8.2f ms", _max / 1000.0);
132 _label_max.set_text (buf);
133 snprintf (buf, sizeof(buf), "%8.3f ms", avg / 1000.0);
134 _label_avg.set_text (buf);
135 snprintf (buf, sizeof(buf), "%8.3f ms", stddev / 1000.0);
136 _label_dev.set_text (buf);
137 _label_acq.set_text (Timecode::timecode_format_sampletime (now - _start, 1000000, 100, false));
145 _last = _x_get_monotonic_usec ();
146 _last_display = _last;
151 _total = _var_m = _var_s = 0;
153 _label_cur.set_text ("-");
154 _label_min.set_text ("-");
155 _label_max.set_text ("-");
156 _label_avg.set_text ("-");
157 _label_dev.set_text ("-");
158 _label_acq.set_text ("-");
162 IdleOMeter::on_show ()
164 ArdourDialog::on_show ();
166 _idle_connection = Glib::signal_idle().connect (sigc::mem_fun (*this, &IdleOMeter::idle));
170 IdleOMeter::on_hide ()
172 _idle_connection.disconnect ();
173 ArdourDialog::on_hide ();