Skip to content

Commit 8f8a178

Browse files
peter-lawreypeter-lawrey
committed
1.7.2-SNAPSHOT Improve examples
1 parent 8eca730 commit 8f8a178

File tree

1 file changed

+221
-12
lines changed

1 file changed

+221
-12
lines changed

‎chronicle/src/test/java/com/higherfrequencytrading/chronicle/examples/ExampleSimpleWriteReadMain.java

Lines changed: 221 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -28,6 +28,8 @@
2828
public class ExampleSimpleWriteReadMain {
2929
public static void main(String... args) throws IOException {
3030
final long runs = 1000 * 1000000L;
31+
final int batchSize = 10;
32+
System.out.printf("Messages to write %,d in batches of %,d%n", runs, batchSize);
3133
long start = System.nanoTime();
3234
final String basePath = System.getProperty("java.io.tmpdir") + "/ExampleSimpleWriteReadMain";
3335
ChronicleTools.deleteOnExit(basePath);
@@ -39,11 +41,13 @@ public void run() {
3941
IndexedChronicle ic = new IndexedChronicle(basePath);
4042
ic.useUnsafe(true); // for benchmarks
4143
Excerpt excerpt = ic.createExcerpt();
42-
for (long i = 1; i <= runs; i++) {
43-
excerpt.startExcerpt(13);
44-
excerpt.writeUnsignedByte('M'); // message type
45-
excerpt.writeLong(i); // e.g. time stamp
46-
excerpt.writeFloat(i);
44+
for (long i = 1; i <= runs; i += batchSize) {
45+
excerpt.startExcerpt(13 * batchSize);
46+
for (int k = 0; k < batchSize; k++) {
47+
excerpt.writeUnsignedByte('M'); // message type
48+
excerpt.writeLong(i); // e.g. time stamp
49+
excerpt.writeFloat(i);
50+
}
4751
excerpt.finish();
4852
}
4953
ic.close();
@@ -58,16 +62,18 @@ public void run() {
5862
Excerpt excerpt = ic.createExcerpt();
5963
int blocks = 1000000;
6064
for (long j = 0; j < runs; j += blocks) {
61-
for (long i = j + 1; i <= j + blocks; i++) {
65+
for (long i = j + 1; i <= j + blocks; i += batchSize) {
6266
while (!excerpt.nextIndex()) {
6367
// busy wait
6468
}
65-
char ch = (char) excerpt.readUnsignedByte();
66-
long l = excerpt.readLong();
67-
float d = excerpt.readFloat();
68-
assert ch == 'M';
69-
assert l == i;
70-
assert d == (float) i;
69+
for (int k = 0; k < batchSize; k++) {
70+
char ch = (char) excerpt.readUnsignedByte();
71+
long l = excerpt.readLong();
72+
float d = excerpt.readFloat();
73+
assert ch == 'M';
74+
assert l == i;
75+
assert d == (float) i;
76+
}
7177
excerpt.finish();
7278
}
7379
if (((j + blocks) % 100000000) == 0) {
@@ -284,4 +290,207 @@ public void run() {
284290
... Took 1228.14 to write and read 19,900,000,000 entries
285291
... Took 1235.11 to write and read 20,000,000,000 entries
286292
Took 1247.07 to write and read 20,000,000,000 entries
293+
294+
batchSize=10
295+
... Took 1.48 to write and read 100,000,000 entries
296+
... Took 3.47 to write and read 200,000,000 entries
297+
... Took 5.22 to write and read 300,000,000 entries
298+
... Took 7.85 to write and read 400,000,000 entries
299+
... Took 9.81 to write and read 500,000,000 entries
300+
... Took 12.14 to write and read 600,000,000 entries
301+
... Took 14.15 to write and read 700,000,000 entries
302+
... Took 16.39 to write and read 800,000,000 entries
303+
... Took 18.52 to write and read 900,000,000 entries
304+
... Took 20.29 to write and read 1,000,000,000 entries
305+
... Took 22.52 to write and read 1,100,000,000 entries
306+
... Took 24.66 to write and read 1,200,000,000 entries
307+
... Took 26.19 to write and read 1,300,000,000 entries
308+
... Took 27.89 to write and read 1,400,000,000 entries
309+
... Took 29.68 to write and read 1,500,000,000 entries
310+
... Took 31.55 to write and read 1,600,000,000 entries
311+
... Took 40.31 to write and read 1,700,000,000 entries
312+
... Took 42.34 to write and read 1,800,000,000 entries
313+
... Took 44.47 to write and read 1,900,000,000 entries
314+
... Took 46.65 to write and read 2,000,000,000 entries
315+
... Took 48.80 to write and read 2,100,000,000 entries
316+
... Took 51.05 to write and read 2,200,000,000 entries
317+
... Took 53.15 to write and read 2,300,000,000 entries
318+
... Took 55.44 to write and read 2,400,000,000 entries
319+
... Took 60.76 to write and read 2,500,000,000 entries
320+
... Took 62.61 to write and read 2,600,000,000 entries
321+
... Took 64.90 to write and read 2,700,000,000 entries
322+
... Took 67.01 to write and read 2,800,000,000 entries
323+
... Took 69.20 to write and read 2,900,000,000 entries
324+
... Took 71.48 to write and read 3,000,000,000 entries
325+
... Took 73.55 to write and read 3,100,000,000 entries
326+
... Took 75.86 to write and read 3,200,000,000 entries
327+
... Took 81.97 to write and read 3,300,000,000 entries
328+
... Took 83.75 to write and read 3,400,000,000 entries
329+
... Took 86.02 to write and read 3,500,000,000 entries
330+
... Took 88.19 to write and read 3,600,000,000 entries
331+
... Took 90.43 to write and read 3,700,000,000 entries
332+
... Took 92.68 to write and read 3,800,000,000 entries
333+
... Took 94.94 to write and read 3,900,000,000 entries
334+
... Took 97.27 to write and read 4,000,000,000 entries
335+
... Took 102.70 to write and read 4,100,000,000 entries
336+
... Took 104.75 to write and read 4,200,000,000 entries
337+
... Took 107.00 to write and read 4,300,000,000 entries
338+
... Took 109.26 to write and read 4,400,000,000 entries
339+
... Took 111.47 to write and read 4,500,000,000 entries
340+
... Took 113.67 to write and read 4,600,000,000 entries
341+
... Took 115.79 to write and read 4,700,000,000 entries
342+
... Took 118.06 to write and read 4,800,000,000 entries
343+
... Took 121.48 to write and read 4,900,000,000 entries
344+
... Took 125.64 to write and read 5,000,000,000 entries
345+
... Took 127.85 to write and read 5,100,000,000 entries
346+
... Took 130.01 to write and read 5,200,000,000 entries
347+
... Took 132.20 to write and read 5,300,000,000 entries
348+
... Took 134.46 to write and read 5,400,000,000 entries
349+
... Took 136.95 to write and read 5,500,000,000 entries
350+
... Took 139.28 to write and read 5,600,000,000 entries
351+
... Took 141.44 to write and read 5,700,000,000 entries
352+
... Took 146.98 to write and read 5,800,000,000 entries
353+
... Took 149.00 to write and read 5,900,000,000 entries
354+
... Took 151.29 to write and read 6,000,000,000 entries
355+
... Took 153.45 to write and read 6,100,000,000 entries
356+
... Took 155.78 to write and read 6,200,000,000 entries
357+
... Took 157.90 to write and read 6,300,000,000 entries
358+
... Took 160.19 to write and read 6,400,000,000 entries
359+
... Took 162.36 to write and read 6,500,000,000 entries
360+
... Took 167.97 to write and read 6,600,000,000 entries
361+
... Took 170.02 to write and read 6,700,000,000 entries
362+
... Took 172.25 to write and read 6,800,000,000 entries
363+
... Took 174.41 to write and read 6,900,000,000 entries
364+
... Took 176.64 to write and read 7,000,000,000 entries
365+
... Took 178.94 to write and read 7,100,000,000 entries
366+
... Took 181.21 to write and read 7,200,000,000 entries
367+
... Took 183.34 to write and read 7,300,000,000 entries
368+
... Took 189.11 to write and read 7,400,000,000 entries
369+
... Took 191.17 to write and read 7,500,000,000 entries
370+
... Took 193.18 to write and read 7,600,000,000 entries
371+
... Took 195.60 to write and read 7,700,000,000 entries
372+
... Took 197.80 to write and read 7,800,000,000 entries
373+
... Took 200.07 to write and read 7,900,000,000 entries
374+
... Took 202.29 to write and read 8,000,000,000 entries
375+
... Took 204.50 to write and read 8,100,000,000 entries
376+
... Took 210.27 to write and read 8,200,000,000 entries
377+
... Took 212.10 to write and read 8,300,000,000 entries
378+
... Took 214.28 to write and read 8,400,000,000 entries
379+
... Took 216.64 to write and read 8,500,000,000 entries
380+
... Took 218.78 to write and read 8,600,000,000 entries
381+
... Took 221.04 to write and read 8,700,000,000 entries
382+
... Took 223.17 to write and read 8,800,000,000 entries
383+
... Took 225.26 to write and read 8,900,000,000 entries
384+
... Took 231.22 to write and read 9,000,000,000 entries
385+
... Took 233.21 to write and read 9,100,000,000 entries
386+
... Took 235.35 to write and read 9,200,000,000 entries
387+
... Took 237.71 to write and read 9,300,000,000 entries
388+
... Took 239.96 to write and read 9,400,000,000 entries
389+
... Took 242.16 to write and read 9,500,000,000 entries
390+
... Took 244.36 to write and read 9,600,000,000 entries
391+
... Took 246.65 to write and read 9,700,000,000 entries
392+
... Took 252.19 to write and read 9,800,000,000 entries
393+
... Took 254.25 to write and read 9,900,000,000 entries
394+
... Took 256.60 to write and read 10,000,000,000 entries
395+
... Took 258.87 to write and read 10,100,000,000 entries
396+
... Took 261.18 to write and read 10,200,000,000 entries
397+
... Took 263.39 to write and read 10,300,000,000 entries
398+
... Took 265.58 to write and read 10,400,000,000 entries
399+
... Took 267.90 to write and read 10,500,000,000 entries
400+
... Took 273.56 to write and read 10,600,000,000 entries
401+
... Took 275.71 to write and read 10,700,000,000 entries
402+
... Took 277.81 to write and read 10,800,000,000 entries
403+
... Took 280.15 to write and read 10,900,000,000 entries
404+
... Took 282.36 to write and read 11,000,000,000 entries
405+
... Took 284.60 to write and read 11,100,000,000 entries
406+
... Took 286.80 to write and read 11,200,000,000 entries
407+
... Took 288.94 to write and read 11,300,000,000 entries
408+
... Took 294.63 to write and read 11,400,000,000 entries
409+
... Took 297.04 to write and read 11,500,000,000 entries
410+
... Took 299.30 to write and read 11,600,000,000 entries
411+
... Took 301.50 to write and read 11,700,000,000 entries
412+
... Took 303.75 to write and read 11,800,000,000 entries
413+
... Took 306.03 to write and read 11,900,000,000 entries
414+
... Took 308.25 to write and read 12,000,000,000 entries
415+
... Took 310.40 to write and read 12,100,000,000 entries
416+
... Took 315.62 to write and read 12,200,000,000 entries
417+
... Took 318.12 to write and read 12,300,000,000 entries
418+
... Took 320.36 to write and read 12,400,000,000 entries
419+
... Took 322.57 to write and read 12,500,000,000 entries
420+
... Took 324.87 to write and read 12,600,000,000 entries
421+
... Took 327.11 to write and read 12,700,000,000 entries
422+
... Took 329.32 to write and read 12,800,000,000 entries
423+
... Took 331.53 to write and read 12,900,000,000 entries
424+
... Took 336.56 to write and read 13,000,000,000 entries
425+
... Took 339.12 to write and read 13,100,000,000 entries
426+
... Took 341.44 to write and read 13,200,000,000 entries
427+
... Took 343.63 to write and read 13,300,000,000 entries
428+
... Took 345.89 to write and read 13,400,000,000 entries
429+
... Took 348.05 to write and read 13,500,000,000 entries
430+
... Took 350.41 to write and read 13,600,000,000 entries
431+
... Took 352.79 to write and read 13,700,000,000 entries
432+
... Took 357.53 to write and read 13,800,000,000 entries
433+
... Took 360.26 to write and read 13,900,000,000 entries
434+
... Took 362.39 to write and read 14,000,000,000 entries
435+
... Took 364.58 to write and read 14,100,000,000 entries
436+
... Took 366.91 to write and read 14,200,000,000 entries
437+
... Took 368.97 to write and read 14,300,000,000 entries
438+
... Took 371.33 to write and read 14,400,000,000 entries
439+
... Took 373.50 to write and read 14,500,000,000 entries
440+
... Took 378.20 to write and read 14,600,000,000 entries
441+
... Took 381.01 to write and read 14,700,000,000 entries
442+
... Took 383.23 to write and read 14,800,000,000 entries
443+
... Took 385.43 to write and read 14,900,000,000 entries
444+
... Took 387.73 to write and read 15,000,000,000 entries
445+
... Took 389.90 to write and read 15,100,000,000 entries
446+
... Took 392.28 to write and read 15,200,000,000 entries
447+
... Took 394.56 to write and read 15,300,000,000 entries
448+
... Took 399.47 to write and read 15,400,000,000 entries
449+
... Took 401.99 to write and read 15,500,000,000 entries
450+
... Took 404.23 to write and read 15,600,000,000 entries
451+
... Took 406.49 to write and read 15,700,000,000 entries
452+
... Took 408.85 to write and read 15,800,000,000 entries
453+
... Took 410.97 to write and read 15,900,000,000 entries
454+
... Took 413.25 to write and read 16,000,000,000 entries
455+
... Took 415.41 to write and read 16,100,000,000 entries
456+
... Took 420.64 to write and read 16,200,000,000 entries
457+
... Took 423.19 to write and read 16,300,000,000 entries
458+
... Took 425.52 to write and read 16,400,000,000 entries
459+
... Took 427.71 to write and read 16,500,000,000 entries
460+
... Took 430.04 to write and read 16,600,000,000 entries
461+
... Took 432.21 to write and read 16,700,000,000 entries
462+
... Took 434.53 to write and read 16,800,000,000 entries
463+
... Took 436.74 to write and read 16,900,000,000 entries
464+
... Took 441.75 to write and read 17,000,000,000 entries
465+
... Took 444.73 to write and read 17,100,000,000 entries
466+
... Took 446.80 to write and read 17,200,000,000 entries
467+
... Took 449.03 to write and read 17,300,000,000 entries
468+
... Took 451.40 to write and read 17,400,000,000 entries
469+
... Took 453.55 to write and read 17,500,000,000 entries
470+
... Took 455.81 to write and read 17,600,000,000 entries
471+
... Took 458.02 to write and read 17,700,000,000 entries
472+
... Took 463.34 to write and read 17,800,000,000 entries
473+
... Took 466.19 to write and read 17,900,000,000 entries
474+
... Took 468.43 to write and read 18,000,000,000 entries
475+
... Took 470.58 to write and read 18,100,000,000 entries
476+
... Took 472.76 to write and read 18,200,000,000 entries
477+
... Took 475.12 to write and read 18,300,000,000 entries
478+
... Took 477.42 to write and read 18,400,000,000 entries
479+
... Took 479.68 to write and read 18,500,000,000 entries
480+
... Took 484.76 to write and read 18,600,000,000 entries
481+
... Took 487.17 to write and read 18,700,000,000 entries
482+
... Took 489.41 to write and read 18,800,000,000 entries
483+
... Took 491.74 to write and read 18,900,000,000 entries
484+
... Took 493.85 to write and read 19,000,000,000 entries
485+
... Took 496.16 to write and read 19,100,000,000 entries
486+
... Took 498.49 to write and read 19,200,000,000 entries
487+
... Took 500.84 to write and read 19,300,000,000 entries
488+
... Took 506.05 to write and read 19,400,000,000 entries
489+
... Took 508.80 to write and read 19,500,000,000 entries
490+
... Took 510.96 to write and read 19,600,000,000 entries
491+
... Took 513.25 to write and read 19,700,000,000 entries
492+
... Took 515.60 to write and read 19,800,000,000 entries
493+
... Took 517.88 to write and read 19,900,000,000 entries
494+
... Took 520.11 to write and read 20,000,000,000 entries
495+
Took 525.09 to write and read 20,000,000,000 entries
287496
*/

0 commit comments

Comments
 (0)