MIRROR: javascript for 🐜's, a tiny runtime with big ambitions
improve io blocking perf
+23
-4
+18
-1
examples/test262/index.js
+18
-1
examples/test262/index.js
···
57
57
searchQuery: ''
58
58
};
59
59
60
+
let fps = {
61
+
frames: 0,
62
+
lastTime: performance.now(),
63
+
current: 0,
64
+
update() {
65
+
this.frames++;
66
+
const now = performance.now();
67
+
const delta = now - this.lastTime;
68
+
if (delta >= 1000) {
69
+
this.current = Math.round((this.frames * 1000) / delta);
70
+
this.frames = 0;
71
+
this.lastTime = now;
72
+
}
73
+
}
74
+
};
75
+
60
76
function fmt(bytes) {
61
77
if (bytes < 1024) return bytes + ' B';
62
78
if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(2) + ' KB';
···
139
155
}
140
156
141
157
lines.push('');
142
-
lines.push(`${c.dim}[${idx + 1}/${total}]${c.reset}`);
158
+
lines.push(`${c.dim}[${idx + 1}/${total}]${c.reset} ${c.cyan}${fps.current} fps${c.reset}`);
143
159
} else if (state.mode === 'stats') {
144
160
const headerWidth = Math.min(cols, 68);
145
161
lines.push(`${c.bold}${c.blue}${'═'.repeat(headerWidth)}${c.reset}`);
···
214
230
}
215
231
216
232
function render() {
233
+
fps.update();
217
234
const screen = buildScreen();
218
235
process.stdout.write(`${term.syncStart}${term.hideCursor}${term.home}${screen}${term.syncEnd}`);
219
236
}
+5
-3
src/ant.c
+5
-3
src/ant.c
···
1055
1055
work = get_pending_work();
1056
1056
1057
1057
if (work & (WORK_READLINE | WORK_STDIN)) {
1058
-
uv_run(uv_default_loop(), UV_RUN_NOWAIT);
1059
-
int64_t ms = has_pending_timers() ? get_next_timer_timeout() : 20;
1060
-
if (ms > 20) ms = 20; if (ms > 0) usleep((useconds_t)(ms * 1000));
1058
+
if (work & WORK_BLOCKING) uv_run(uv_default_loop(), UV_RUN_NOWAIT); else {
1059
+
int64_t ms = has_pending_timers() ? get_next_timer_timeout() : 100;
1060
+
if (ms > 100) ms = 100;
1061
+
uv_run(uv_default_loop(), ms > 0 ? UV_RUN_ONCE : UV_RUN_NOWAIT);
1062
+
}
1061
1063
} else if (!(work & WORK_BLOCKING) && (work & WORK_TIMERS)) {
1062
1064
jsoff_t gc_thresh = js->brk / 2;
1063
1065
if (gc_thresh < 4 * 1024 * 1024) gc_thresh = 4 * 1024 * 1024;