Performance200.md

Duktape 2.0.0 performance measurement

Performance summary

	duk-perf.O2.200	duk.O2.200	duk.O2.150	mujs	jerry	lua	python	perl	ruby
test-add-fastint.js	0.55	0.65	0.88	4.04	2.55	n/a	n/a	n/a	n/a
test-add-float.js	0.56	0.71	0.85	4.04	3.87	n/a	n/a	n/a	n/a
test-add-nan-fastint.js	0.63	0.77	0.99	4.04	3.14	n/a	n/a	n/a	n/a
test-add-nan.js	0.55	0.64	0.82	4.03	3.86	n/a	n/a	n/a	n/a
test-arith-add.js	2.24	2.58	3.30	15.93	15.35	n/a	n/a	n/a	n/a
test-arith-div.js	6.95	7.28	8.23	11.17	19.73	n/a	n/a	n/a	n/a
test-arith-mod.js	6.32	6.66	7.84	13.40	23.35	n/a	n/a	n/a	n/a
test-arith-mul.js	3.35	3.66	4.37	10.98	15.89	n/a	n/a	n/a	n/a
test-arith-sub.js	2.33	2.74	3.56	11.09	15.83	n/a	n/a	n/a	n/a
test-array-append.js	0.53	0.53	0.72	43.56	n/a	n/a	n/a	n/a	n/a
test-array-cons-list.js	0.81	0.92	2.33	8.18	2.10	n/a	n/a	n/a	n/a
test-array-foreach.js	2.52	2.70	2.73	2.82	1.53	n/a	n/a	n/a	n/a
test-array-literal.js	1.49	1.58	1.80	54.91	0.84	n/a	n/a	n/a	n/a
test-array-pop.js	2.13	2.21	7.35	46.67	6.71	1.10	0.88	n/a	n/a
test-array-push.js	2.40	2.54	4.93	7.85	3.63	0.99	0.52	n/a	n/a
test-array-read-lenloop.js	1.75	1.88	2.68	113.66	3.94	n/a	n/a	n/a	n/a
test-array-read.js	1.66	1.73	2.10	216.37	4.98	0.94	1.73	3.23	1.44
test-array-sort.js	3.57	3.49	3.46	n/a	3.73	n/a	n/a	n/a	n/a
test-array-write-length.js	1.49	1.70	2.83	3.37	2.52	n/a	n/a	n/a	n/a
test-array-write.js	1.66	1.78	2.64	233.38	5.71	1.13	2.48	3.22	4.02
test-assign-add.js	3.32	3.74	5.21	34.13	22.74	3.19	13.84	24.98	10.17
test-assign-addto-nan.js	1.01	1.25	1.59	7.38	5.56	n/a	n/a	n/a	n/a
test-assign-addto.js	3.34	3.67	5.29	34.43	27.36	3.25	16.20	24.07	10.21
test-assign-boolean.js	4.69	4.68	4.84	9.44	19.35	n/a	n/a	n/a	n/a
test-assign-const-int.js	1.93	2.53	2.57	9.65	11.07	2.10	5.53	22.37	4.02
test-assign-const-int2.js	3.92	5.77	9.00	9.61	11.08	n/a	n/a	n/a	n/a
test-assign-const.js	3.29	4.28	4.28	9.86	15.58	2.14	5.46	22.73	4.06
test-assign-literal.js	3.33	3.75	4.21	9.97	21.68	2.60	12.04	n/a	4.46
test-assign-proplhs-reg.js	2.47	2.67	3.74	2.41	4.91	n/a	n/a	n/a	n/a
test-assign-proprhs.js	2.63	2.92	4.25	2.51	3.54	n/a	n/a	n/a	n/a
test-assign-reg.js	2.46	2.84	2.79	8.90	14.84	2.26	5.75	23.32	4.08
test-base64-decode-whitespace.js	1.89	1.88	n/a	n/a	n/a	n/a	8.73	n/a	n/a
test-base64-decode.js	1.53	1.53	n/a	n/a	n/a	n/a	8.69	n/a	n/a
test-base64-encode.js	1.68	1.68	n/a	n/a	n/a	n/a	17.08	n/a	n/a
test-bitwise-ops.js	1.53	1.89	2.61	14.40	21.07	n/a	n/a	n/a	n/a
test-break-fast.js	1.30	1.52	1.61	1.22	1.14	n/a	n/a	n/a	n/a
test-break-slow.js	6.76	7.43	8.00	2.55	4.15	n/a	n/a	n/a	n/a
test-buffer-nodejs-read.js	2.10	2.31	2.64	n/a	n/a	n/a	n/a	n/a	n/a
test-buffer-nodejs-write.js	2.79	3.03	3.14	n/a	n/a	n/a	n/a	n/a	n/a
test-buffer-object-read.js	2.09	2.30	2.60	n/a	n/a	n/a	n/a	n/a	n/a
test-buffer-object-write.js	2.79	3.05	3.15	n/a	n/a	n/a	n/a	n/a	n/a
test-buffer-plain-read.js	1.73	1.89	2.25	n/a	n/a	n/a	n/a	n/a	n/a
test-buffer-plain-write.js	1.72	1.79	1.82	n/a	n/a	n/a	n/a	n/a	n/a
test-call-basic-1.js	7.29	7.72	9.25	6.53	9.09	2.23	5.29	7.87	3.40
test-call-basic-2.js	7.41	7.73	9.21	4.90	8.18	n/a	n/a	n/a	n/a
test-call-basic-3.js	9.09	9.77	15.00	12.43	14.31	n/a	n/a	n/a	n/a
test-call-basic-4.js	16.02	17.89	37.31	34.48	35.17	n/a	n/a	n/a	n/a
test-call-native.js	12.44	13.39	13.92	17.19	7.69	n/a	n/a	n/a	n/a
test-call-prop.js	3.99	4.22	5.78	2.87	4.13	n/a	n/a	n/a	n/a
test-call-reg-new.js	6.28	6.40	6.70	2.73	3.22	n/a	n/a	n/a	n/a
test-call-reg.js	2.83	3.00	3.60	2.28	3.36	n/a	n/a	n/a	n/a
test-call-var.js	7.77	8.26	8.05	4.36	3.79	n/a	n/a	n/a	n/a
test-compile-mandel-nofrac.js	10.90	10.69	13.29	5.90	2.22	n/a	n/a	n/a	n/a
test-compile-mandel.js	13.96	13.72	16.50	5.84	2.24	n/a	n/a	n/a	n/a
test-compile-short.js	6.38	6.80	9.88	2.11	0.86	n/a	n/a	n/a	n/a
test-compile-string-ascii.js	6.66	6.70	9.17	6.32	n/a	n/a	n/a	n/a	n/a
test-continue-fast.js	1.68	1.84	2.23	1.96	2.20	n/a	n/a	n/a	n/a
test-continue-slow.js	7.49	7.88	8.35	3.32	5.91	n/a	n/a	n/a	n/a
test-empty-loop-slowpath.js	1.49	1.68	2.01	0.99	0.68	n/a	n/a	n/a	n/a
test-empty-loop.js	1.62	1.65	2.27	5.87	3.16	1.00	4.54	3.44	3.34
test-enum-basic.js	3.98	3.99	4.53	0.68	1.06	n/a	n/a	n/a	n/a
test-equals-fastint.js	0.51	0.61	1.17	2.37	2.87	n/a	n/a	n/a	n/a
test-equals-nonfastint.js	0.51	0.62	1.23	2.35	3.93	n/a	n/a	n/a	n/a
test-error-create.js	2.13	2.12	3.31	4.76	0.80	n/a	n/a	n/a	n/a
test-fib.js	6.32	6.96	7.78	3.30	4.98	1.40	2.45	6.45	1.54
test-global-lookup.js	7.80	7.87	10.26	4.15	2.20	n/a	n/a	n/a	n/a
test-hello-world.js	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
test-hex-decode.js	3.59	3.65	3.68	n/a	n/a	n/a	12.71	n/a	n/a
test-hex-encode.js	2.81	2.82	n/a	n/a	n/a	n/a	1.42	n/a	n/a
test-jc-serialize-indented.js	3.33	3.40	3.56	n/a	n/a	n/a	n/a	n/a	n/a
test-jc-serialize.js	2.09	2.22	2.46	n/a	n/a	n/a	n/a	n/a	n/a
test-json-parse-hex.js	3.16	3.23	n/a	n/a	n/a	n/a	n/a	n/a	n/a
test-json-parse-integer.js	3.93	3.82	4.08	21.09	n/a	n/a	0.07	n/a	n/a
test-json-parse-number.js	5.23	5.15	5.23	2.41	n/a	n/a	0.29	n/a	n/a
test-json-parse-string.js	5.57	5.82	5.80	45.21	n/a	n/a	n/a	n/a	n/a
test-json-serialize-fastpath-loop.js	3.66	3.61	3.61	12.61	532.24	n/a	n/a	n/a	n/a
test-json-serialize-forceslow.js	9.70	9.08	11.19	2.19	8.86	n/a	n/a	n/a	n/a
test-json-serialize-hex.js	1.44	1.49	n/a	n/a	n/a	n/a	n/a	n/a	n/a
test-json-serialize-indented-deep100.js	1.77	1.77	2.45	1.52	135.92	n/a	n/a	n/a	n/a
test-json-serialize-indented-deep25.js	3.11	3.25	3.31	10.34	240.02	n/a	n/a	n/a	n/a
test-json-serialize-indented-deep500.js	1.24	1.17	1.57	n/a	n/a	n/a	n/a	n/a	n/a
test-json-serialize-indented.js	5.80	5.91	6.34	14.83	106.53	n/a	n/a	n/a	n/a
test-json-serialize-jsonrpc-message.js	1.98	1.97	1.99	n/a	n/a	n/a	n/a	n/a	n/a
test-json-serialize-nofrac.js	0.59	0.61	0.67	1.56	7.26	n/a	n/a	n/a	n/a
test-json-serialize-slowpath-loop.js	4.27	4.28	6.04	n/a	6.08	n/a	n/a	n/a	n/a
test-json-serialize.js	6.25	5.87	6.18	2.20	8.78	n/a	0.51	n/a	n/a
test-json-string-bench.js	3.41	3.49	5.29	49.96	n/a	n/a	n/a	n/a	n/a
test-json-string-stringify.js	5.12	5.17	5.19	10.73	n/a	n/a	0.48	n/a	n/a
test-jx-serialize-bufobj-forceslow.js	4.66	4.83	5.61	n/a	n/a	n/a	n/a	n/a	n/a
test-jx-serialize-bufobj.js	1.50	1.57	1.65	n/a	n/a	n/a	n/a	n/a	n/a
test-jx-serialize-indented.js	3.20	3.40	3.50	n/a	n/a	n/a	n/a	n/a	n/a
test-jx-serialize.js	2.15	2.23	2.44	n/a	n/a	n/a	n/a	n/a	n/a
test-mandel.js	2.48	2.98	4.36	13.94	13.15	1.60	n/a	n/a	n/a
test-object-garbage-2.js	4.71	4.91	4.87	49.95	2.59	n/a	n/a	n/a	n/a
test-object-garbage.js	4.47	4.51	4.37	2.37	2.76	3.44	0.66	n/a	n/a
test-object-literal.js	2.80	2.88	2.54	3.89	2.28	n/a	n/a	n/a	n/a
test-prop-read-4.js	3.14	3.52	4.75	3.65	3.95	n/a	n/a	n/a	n/a
test-prop-read-8.js	3.27	3.83	4.96	4.52	3.93	n/a	n/a	n/a	n/a
test-prop-read.js	3.15	3.64	4.80	3.81	3.94	1.08	2.37	4.89	11.20
test-prop-write-1024.js	3.73	3.33	5.12	9.93	4.48	n/a	n/a	n/a	n/a
test-prop-write-16.js	3.18	3.78	4.58	4.48	4.49	n/a	n/a	n/a	n/a
test-prop-write-256.js	3.35	3.92	4.96	8.36	4.68	n/a	n/a	n/a	n/a
test-prop-write-32.js	3.82	3.44	6.82	5.55	4.66	n/a	n/a	n/a	n/a
test-prop-write-4.js	2.87	3.13	4.37	3.75	4.68	n/a	n/a	n/a	n/a
test-prop-write-48.js	5.56	4.62	5.40	6.62	4.61	n/a	n/a	n/a	n/a
test-prop-write-64.js	4.41	4.15	4.97	6.75	4.75	n/a	n/a	n/a	n/a
test-prop-write-8.js	3.09	3.53	4.50	4.66	4.65	n/a	n/a	n/a	n/a
test-prop-write.js	2.92	3.23	4.39	3.89	4.65	1.22	2.56	5.12	15.57
test-random.js	2.20	2.30	6.49	1.06	1.93	n/a	n/a	n/a	n/a
test-reg-readwrite-object.js	3.00	3.09	3.21	7.80	13.44	1.77	n/a	29.13	3.97
test-reg-readwrite-plain.js	1.78	2.03	2.05	7.73	10.82	1.73	4.83	30.80	4.00
test-regexp-case-insensitive.js	0.00	24.82	24.51	0.00	0.00	n/a	n/a	n/a	n/a
test-regexp-compile.js	2.14	2.17	2.69	1.50	0.43	n/a	n/a	n/a	n/a
test-regexp-execute.js	1.54	1.49	1.89	1.57	1.08	n/a	n/a	n/a	n/a
test-regexp-string-parse.js	5.94	5.99	9.70	n/a	n/a	n/a	0.51	n/a	n/a
test-strict-equals-fastint.js	0.49	0.58	1.17	2.45	3.04	n/a	n/a	n/a	n/a
test-strict-equals-nonfastint.js	0.57	0.63	1.24	2.43	3.84	n/a	n/a	n/a	n/a
test-string-array-concat.js	5.43	5.52	6.67	256.24	n/a	2.11	2.84	7.56	7.90
test-string-charlen-ascii.js	1.12	1.07	1.34	4.72	0.75	n/a	n/a	n/a	n/a
test-string-charlen-nonascii.js	2.65	2.67	2.82	7.11	0.50	n/a	n/a	n/a	n/a
test-string-compare.js	1.85	2.13	3.84	769.37	n/a	2.82	4.93	16.59	5.43
test-string-decodeuri.js	3.61	3.60	3.72	2.13	n/a	n/a	n/a	n/a	n/a
test-string-encodeuri.js	4.06	4.05	4.04	3.61	n/a	n/a	n/a	n/a	n/a
test-string-garbage.js	5.15	4.94	5.38	1.72	1.81	1.54	1.49	n/a	n/a
test-string-intern-grow-short.js	11.74	11.57	11.91	n/a	n/a	n/a	n/a	n/a	n/a
test-string-intern-grow-short2.js	4.61	4.59	5.00	n/a	n/a	n/a	n/a	n/a	n/a
test-string-intern-grow.js	20.53	20.26	19.92	n/a	n/a	n/a	n/a	n/a	n/a
test-string-intern-grow2.js	1.79	1.79	1.79	n/a	n/a	n/a	n/a	n/a	n/a
test-string-intern-match-short.js	2.59	2.64	2.50	n/a	n/a	n/a	n/a	n/a	n/a
test-string-intern-match.js	0.22	0.23	0.26	n/a	n/a	n/a	n/a	n/a	n/a
test-string-intern-miss-short.js	2.97	3.09	3.28	n/a	n/a	n/a	n/a	n/a	n/a
test-string-intern-miss.js	1.14	1.20	1.19	n/a	n/a	n/a	n/a	n/a	n/a
test-string-plain-concat.js	0.89	0.86	1.09	1.03	0.52	0.63	0.00	0.40	0.77
test-string-uppercase.js	2.32	2.21	2.23	4.48	n/a	n/a	1.27	n/a	n/a
test-textdecoder-ascii.js	2.84	2.79	n/a	n/a	n/a	n/a	n/a	n/a	n/a
test-textdecoder-nonascii.js	2.79	2.77	n/a	n/a	n/a	n/a	n/a	n/a	n/a
test-textencoder-ascii.js	3.98	4.19	n/a	n/a	n/a	n/a	n/a	n/a	n/a
test-textencoder-nonascii.js	11.27	11.21	n/a	n/a	n/a	n/a	n/a	n/a	n/a
test-try-catch-nothrow.js	2.65	2.59	2.93	2.21	3.18	n/a	n/a	n/a	n/a
test-try-catch-throw.js	37.57	38.32	38.83	20.59	14.89	n/a	n/a	n/a	n/a
test-try-finally-nothrow.js	2.97	3.39	3.71	2.06	3.63	n/a	n/a	n/a	n/a
test-try-finally-throw.js	47.16	48.88	48.66	22.93	17.85	n/a	n/a	n/a	n/a

Setup

Measurement host:

• "Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz" laptop

Duktape is compiled with:

• gcc-4.8.4 (Ubuntu 14.04.3) on x64
• gcc -O2
• duk.O2: defaults + debugger and executor interrupt enabled, fastints enabled
• duk-perf.O2: performance-sensitive.yaml as baseline, no debugger or executor interrupt support, fastints enabled

Note that:

• These are microbenchmarks, and don't necessarily represent application performance very well. Microbenchmarks are useful for measuring how well different parts of the engine work.

• Only relative numbers matter. Loop counts differ between test cases so the numbers for two tests are not directly comparable. Absolute numbers may also change between test runs if test target is different.

• The measurement process is not very accurate: it's based on running the test multiple times and measuring time using the time command.