[ywxt]

This PR classifies UTF-16 code units and accumulates ASCII and BMP characters into blocks that can be processed with SIMD.

1. Overall

Platform	Cases	Improved	Regressed	Unchanged	Median	Mean	Change range
x86-64	127	111	16	0	−40.21%	−39.26%	−98.20% to +43.16%
AArch64	127	105	22	0	−40.92%	−39.89%	−99.26% to +69.06%

2. Category

By Language/Input Type: x86-64

Category	Cases	Improved / Regressed	Median	Mean	Change range
ASCII	10	10 / 0	−79.49%	−67.31%	−98.20% to −12.28%
CJK	10	7 / 3	−41.40%	−34.13%	−73.06% to +1.72%
CJK + ASCII	24	24 / 0	−51.16%	−47.59%	−74.54% to −12.40%
CJK + 5% emoji	8	7 / 1	−23.29%	−18.67%	−35.12% to +0.79%
Cyrillic, repeated character	8	5 / 3	−9.74%	−15.21%	−44.02% to +7.29%
Russian corpus	10	8 / 2	−21.65%	−27.73%	−75.97% to +13.34%
Emoji	8	5 / 3	−4.76%	−0.95%	−20.27% to +43.16%
Latin1, 1%	8	8 / 0	−22.93%	−34.60%	−75.86% to −4.45%
Latin1, 10%	10	9 / 1	−16.30%	−20.80%	−66.48% to +26.46%
Random 3% two-byte UTF-8 characters	8	8 / 0	−35.60%	−35.67%	−57.88% to −8.59%
10% unpaired surrogates	2	2 / 0	−67.08%	−67.08%	−69.30% to −64.87%
Invalid / ASCII	9	8 / 1	−97.33%	−84.84%	−97.56% to +12.13%
Invalid / CJK	9	8 / 1	−71.98%	−58.82%	−73.33% to +7.37%
Invalid / Russian	3	2 / 1	−43.79%	−25.29%	−44.12% to +12.05%

By Input Length: x86-64

Length	Cases	Improved / Regressed	Median	Mean	Change range
4	12	7 / 5	−5.01%	−10.50%	−58.81% to +2.56%
8	12	9 / 3	−15.37%	−15.40%	−56.24% to +3.57%
16	12	12 / 0	−32.97%	−29.38%	−59.52% to −3.36%
30	12	11 / 1	−15.62%	−21.74%	−52.73% to +1.09%
40	12	8 / 4	−17.16%	−15.06%	−72.75% to +43.16%
100	12	12 / 0	−38.27%	−42.02%	−86.24% to −8.21%
1,000	12	12 / 0	−49.65%	−51.72%	−94.49% to −16.13%
100,000	43	40 / 3	−71.98%	−64.09%	−98.20% to +12.13%

By Language/Input Type: AArch64

Category	Cases	Improved / Regressed	Median	Mean	Change range
ASCII	10	8 / 2	−76.25%	−58.16%	−99.26% to +18.31%
CJK	10	8 / 2	−40.71%	−36.11%	−78.19% to +6.47%
CJK + ASCII	24	24 / 0	−57.22%	−49.55%	−78.04% to −0.42%
CJK + 5% emoji	8	5 / 3	−20.74%	−15.85%	−44.90% to +18.93%
Cyrillic, repeated character	8	5 / 3	−17.29%	−16.93%	−47.64% to +11.44%
Russian corpus	10	7 / 3	−37.65%	−35.69%	−81.40% to +10.48%
Emoji	8	4 / 4	+0.52%	+5.28%	−30.10% to +69.06%
Latin1, 1%	8	8 / 0	−22.19%	−31.96%	−74.48% to −1.78%
Latin1, 10%	10	9 / 1	−27.34%	−28.18%	−78.72% to +20.58%
Random 3% two-byte UTF-8 characters	8	6 / 2	−19.66%	−23.95%	−59.65% to +17.90%
10% unpaired surrogates	2	2 / 0	−79.66%	−79.66%	−82.82% to −76.51%
Invalid / ASCII	9	8 / 1	−97.86%	−85.74%	−99.00% to +11.94%
Invalid / CJK	9	8 / 1	−71.86%	−61.70%	−78.19% to +9.06%
Invalid / Russian	3	3 / 0	−60.87%	−47.16%	−61.01% to −19.60%

By Input Length: AArch64

Length	Cases	Improved / Regressed	Median	Mean	Change range
4	12	5 / 7	+1.13%	−6.12%	−65.77% to +3.76%
8	12	6 / 6	+0.40%	−3.55%	−56.10% to +18.31%
16	12	11 / 1	−18.55%	−27.84%	−70.00% to +9.89%
30	12	10 / 2	−32.77%	−27.85%	−61.91% to +18.93%
40	12	8 / 4	−22.00%	−15.58%	−68.38% to +69.06%
100	12	12 / 0	−39.42%	−40.82%	−84.12% to −0.74%
1,000	12	12 / 0	−59.24%	−54.03%	−95.25% to −7.91%
100,000	43	41 / 2	−76.51%	−68.75%	−99.26% to +11.94%

3. Regression

Additional Reallocation

Compared to main, reserve may trigger an additional reallocation.

All cases below use strict from_utf16. Times are in ns.

Case	x86 main → current	Change	AArch64 main → current	Change
emoji_0040	125.40 → 179.52	+43.16%	106.27 → 179.66	+69.06%
latin10pct_0040	123.68 → 156.41	+26.46%	118.88 → 143.35	+20.58%
cyrillic_words_0040	151.92 → 172.19	+13.34%	143.29 → 158.30	+10.48%
cyrillic_0040	161.88 → 173.68	+7.29%	143.57 → 159.99	+11.44%

Small Sequence

On small slices, there are regressions.

Platform	Benchmark	main → current time (ns)	Time change	Instruction count change	Cycle count change
x86	cyrillic_0008	44.00 → 45.57	+3.57%	+3.83%	+3.43%
AArch64	ascii_0008	27.42 → 32.44	+18.31%	−13.13%	+4.01%
AArch64	cyrillic_0008	38.77 → 40.87	+5.42%	−1.01%	+6.10%

Error at Beginning

There is SIMD loading for long sequences.

Platform	Benchmark	main time (ns)	Current time (ns)	Time change
x86	err_ascii_start_100000	30.83	34.57	+12.13%
x86	err_cjk_start_100000	42.36	45.48	+7.37%
x86	err_cyrillic_words_start_100000	29.95	33.56	+12.05%
AArch64	err_ascii_start_100000	37.95	42.48	+11.94%
AArch64	err_cjk_start_100000	37.99	41.43	+9.06%
AArch64	err_cyrillic_words_start_100000	37.96	30.52	−19.60%

r? @Amanieu

Detailed benchmark results

Platform	Benchmark	API	Main (ns)	Current (ns)	Change (%)
x86	bench_from_utf16_ascii_0004	strict	22.89	20.08	-12.27610310179118
x86	bench_from_utf16_ascii_0008	strict	29.38	22.46	-23.553437712729743
x86	bench_from_utf16_ascii_0016	strict	42.79	25.25	-40.990885720962844
x86	bench_from_utf16_ascii_0030	strict	65.65	32.23	-50.90632140137091
x86	bench_from_utf16_ascii_0040	strict	88.84	24.21	-72.74876181900045
x86	bench_from_utf16_ascii_0100	strict	195.0	26.84	-86.23589743589744
x86	bench_from_utf16_ascii_1000	strict	1706.66	94.11	-94.48572064734628
x86	bench_from_utf16_ascii_100000	strict	169645.73	7504.58	-95.57632249276182
x86	bench_from_utf16_cjk_0004	strict	51.38	51.99	1.1872323861424672
x86	bench_from_utf16_cjk_0008	strict	81.22	82.62	1.7237133710908736
x86	bench_from_utf16_cjk_0016	strict	122.18	69.83	-42.8466197413652
x86	bench_from_utf16_cjk_0030	strict	165.6	167.41	1.0929951690821227
x86	bench_from_utf16_cjk_0040	strict	215.11	175.9	-18.227883408488687
x86	bench_from_utf16_cjk_0100	strict	419.87	252.12	-39.95284254650249
x86	bench_from_utf16_cjk_1000	strict	2937.08	1521.36	-48.20161520966402
x86	bench_from_utf16_cjk_100000	strict	285166.6	138750.76	-51.343965246981924
x86	bench_from_utf16_cjk_ascii_0004	strict	23.07	20.21	-12.397052449068047
x86	bench_from_utf16_cjk_ascii_0008	strict	39.49	33.49	-15.193719929095973
x86	bench_from_utf16_cjk_ascii_0016	strict	112.67	77.95	-30.815656341528353
x86	bench_from_utf16_cjk_ascii_0030	strict	160.0	114.82	-28.237500000000004
x86	bench_from_utf16_cjk_ascii_0040	strict	204.16	171.3	-16.095219435736674
x86	bench_from_utf16_cjk_ascii_0100	strict	429.89	272.6	-36.588429598269315
x86	bench_from_utf16_cjk_ascii_1000	strict	3133.91	1532.61	-51.09591532622188
x86	bench_from_utf16_cjk_ascii_100000	strict	301109.57	146854.7	-51.22881680578932
x86	bench_from_utf16_cjk_emoji5pct_0004	strict	49.46	49.85	0.7885159725030233
x86	bench_from_utf16_cjk_emoji5pct_0008	strict	84.38	82.57	-2.145058070632855
x86	bench_from_utf16_cjk_emoji5pct_0016	strict	118.29	76.75	-35.11708512976583
x86	bench_from_utf16_cjk_emoji5pct_0030	strict	155.23	153.63	-1.0307285962764867
x86	bench_from_utf16_cjk_emoji5pct_0040	strict	202.95	172.16	-15.171224439517117
x86	bench_from_utf16_cjk_emoji5pct_0100	strict	430.91	289.74	-32.76090134830939
x86	bench_from_utf16_cjk_emoji5pct_1000	strict	2896.97	1986.99	-31.411440228928843
x86	bench_from_utf16_cjk_emoji5pct_100000	strict	279072.25	188265.42	-32.53882462337262
x86	bench_from_utf16_cyrillic_0004	strict	39.0	40.0	2.564102564102555
x86	bench_from_utf16_cyrillic_0008	strict	44.0	45.57	3.568181818181815
x86	bench_from_utf16_cyrillic_0016	strict	86.15	74.32	-13.731863029599545
x86	bench_from_utf16_cyrillic_0030	strict	122.28	115.26	-5.7409224730127555
x86	bench_from_utf16_cyrillic_0040	strict	161.88	173.68	7.28935013590315
x86	bench_from_utf16_cyrillic_0100	strict	359.76	249.27	-30.712141427618413
x86	bench_from_utf16_cyrillic_1000	strict	2603.89	1538.52	-40.91455476229794
x86	bench_from_utf16_cyrillic_100000	strict	258654.27	144787.22	-44.022876560282576
x86	bench_from_utf16_cyrillic_words_0004	strict	39.77	40.24	1.1817953231078704
x86	bench_from_utf16_cyrillic_words_0008	strict	43.67	42.85	-1.8777192580719082
x86	bench_from_utf16_cyrillic_words_0016	strict	89.53	71.08	-20.607617558360324
x86	bench_from_utf16_cyrillic_words_0030	strict	120.83	103.83	-14.06935363734172
x86	bench_from_utf16_cyrillic_words_0040	strict	151.92	172.19	13.342548709847302
x86	bench_from_utf16_cyrillic_words_0100	strict	321.66	248.65	-22.697879748803086
x86	bench_from_utf16_cyrillic_words_1000	strict	2568.71	1490.44	-41.97710134659031
x86	bench_from_utf16_cyrillic_words_100000	strict	251792.32	139569.53	-44.56958417159031
x86	bench_from_utf16_emoji_0004	strict	38.28	38.71	1.1233019853709392
x86	bench_from_utf16_emoji_0008	strict	40.12	41.03	2.2681954137587335
x86	bench_from_utf16_emoji_0016	strict	78.04	74.9	-4.02357765248591
x86	bench_from_utf16_emoji_0030	strict	109.8	103.77	-5.491803278688523
x86	bench_from_utf16_emoji_0040	strict	125.4	179.52	43.15789473684211
x86	bench_from_utf16_emoji_0100	strict	287.45	263.84	-8.213602365628814
x86	bench_from_utf16_emoji_1000	strict	2047.54	1717.24	-16.131552985533858
x86	bench_from_utf16_emoji_100000	strict	197878.83	157759.21	-20.274841932307762
x86	bench_from_utf16_err_ascii_end_100000	strict	169889.92	7542.78	-95.56019568435843
x86	bench_from_utf16_err_ascii_middle_100000	strict	84610.11	3802.6	-95.50573802586948
x86	bench_from_utf16_err_ascii_start_100000	strict	30.83	34.57	12.131041193642567
x86	bench_from_utf16_err_cjk_end_100000	strict	282211.07	139594.99	-50.53525363126259
x86	bench_from_utf16_err_cjk_middle_100000	strict	141039.0	70011.8	-50.35997135544069
x86	bench_from_utf16_err_cjk_start_100000	strict	42.36	45.48	7.365439093484416
x86	bench_from_utf16_err_cyrillic_words_end_100000	strict	248742.6	139807.1	-43.79446865957017
x86	bench_from_utf16_err_cyrillic_words_middle_100000	strict	125417.52	70086.22	-44.11767989033749
x86	bench_from_utf16_err_cyrillic_words_start_100000	strict	29.95	33.56	12.053422370617707
x86	bench_from_utf16_latin10pct_0004	strict	36.53	34.98	-4.243087872981121
x86	bench_from_utf16_latin10pct_0008	strict	39.16	32.44	-17.16036772216547
x86	bench_from_utf16_latin10pct_0016	strict	75.91	73.36	-3.3592412066921318
x86	bench_from_utf16_latin10pct_0030	strict	103.98	88.08	-15.291402192729375
x86	bench_from_utf16_latin10pct_0040	strict	123.68	156.41	26.463454075032324
x86	bench_from_utf16_latin10pct_0100	strict	252.62	213.61	-15.442166099279541
x86	bench_from_utf16_latin10pct_1000	strict	1991.03	1527.89	-23.26132705182744
x86	bench_from_utf16_latin10pct_100000	strict	189168.86	139411.84	-26.302965509228105
x86	bench_from_utf16_latin1pct_0004	strict	37.1	34.96	-5.768194070080868
x86	bench_from_utf16_latin1pct_0008	strict	38.14	32.21	-15.547981122181431
x86	bench_from_utf16_latin1pct_0016	strict	73.18	69.92	-4.4547690625854175
x86	bench_from_utf16_latin1pct_0030	strict	100.64	84.59	-15.94793322734499
x86	bench_from_utf16_latin1pct_0040	strict	126.33	88.55	-29.905802263911973
x86	bench_from_utf16_latin1pct_0100	strict	263.09	111.29	-57.69888631266866
x86	bench_from_utf16_latin1pct_1000	strict	1811.77	513.62	-71.6509269940445
x86	bench_from_utf16_latin1pct_100000	strict	178012.64	42976.3	-75.85772560869835
x86	bench_from_utf16_lossy_ascii_100000	lossy	420616.05	7550.3	-98.20494248852368
x86	bench_from_utf16_lossy_cjk_100000	lossy	531900.3	143288.67	-73.06099094134746
x86	bench_from_utf16_lossy_cjk_ascii_0004	lossy	53.68	22.11	-58.81147540983606
x86	bench_from_utf16_lossy_cjk_ascii_0008	lossy	82.67	36.18	-56.235635659852434
x86	bench_from_utf16_lossy_cjk_ascii_0016	lossy	173.36	74.71	-56.90470696815875
x86	bench_from_utf16_lossy_cjk_ascii_0030	lossy	278.52	131.66	-52.72870888984633
x86	bench_from_utf16_lossy_cjk_ascii_0040	lossy	366.95	182.51	-50.26297860743971
x86	bench_from_utf16_lossy_cjk_ascii_0100	lossy	704.29	258.3	-63.324766786409
x86	bench_from_utf16_lossy_cjk_ascii_1000	lossy	5774.76	1566.68	-72.87021451973762
x86	bench_from_utf16_lossy_cjk_ascii_100000	lossy	561768.9	143007.38	-74.54337895885656
x86	bench_from_utf16_lossy_cyrillic_words_100000	lossy	596637.1	143373.82	-75.96967738010257
x86	bench_from_utf16_lossy_err_ascii_end_100000	lossy	429511.85	10482.71	-97.55938980496114
x86	bench_from_utf16_lossy_err_ascii_middle_100000	lossy	427572.6	10518.84	-97.53987042200552
x86	bench_from_utf16_lossy_err_ascii_start_100000	lossy	425811.05	10631.31	-97.50327991723088
x86	bench_from_utf16_lossy_err_cjk_end_100000	lossy	534086.2	142460.87	-73.32624022114783
x86	bench_from_utf16_lossy_err_cjk_middle_100000	lossy	534044.3	142442.49	-73.3275891157344
x86	bench_from_utf16_lossy_err_cjk_start_100000	lossy	534901.6	143291.74	-73.2115701280385
x86	bench_from_utf16_lossy_latin10pct_100000	lossy	427839.85	143402.86	-66.48211708189409
x86	bench_from_utf16_lossy_lone10pct_100000	lossy	440199.4	135124.99	-69.30368601138484
x86	bench_from_utf16_rand3pct_0004	strict	22.13	20.23	-8.58563036601897
x86	bench_from_utf16_rand3pct_0008	strict	28.78	23.42	-18.62404447533009
x86	bench_from_utf16_rand3pct_0016	strict	42.18	25.22	-40.20862968231389
x86	bench_from_utf16_rand3pct_0030	strict	102.23	72.14	-29.433630049887515
x86	bench_from_utf16_rand3pct_0040	strict	123.5	85.23	-30.98785425101215
x86	bench_from_utf16_rand3pct_0100	strict	243.03	115.66	-52.40916759247829
x86	bench_from_utf16_rand3pct_1000	strict	1983.84	835.53	-57.883196225502054
x86	bench_from_utf16_rand3pct_100000	strict	191016.77	100834.84	-47.21152493574255
x86	bench_from_wide_ascii_100000	WTF-8	391478.95	7521.59	-98.07867319558305
x86	bench_from_wide_cjk_100000	WTF-8	490330.8	139026.0	-71.64648845228567
x86	bench_from_wide_cjk_ascii_0004	WTF-8	26.83	18.58	-30.74916138650764
x86	bench_from_wide_cjk_ascii_0008	WTF-8	54.84	31.78	-42.04959883296864
x86	bench_from_wide_cjk_ascii_0016	WTF-8	174.96	70.83	-59.5164609053498
x86	bench_from_wide_cjk_ascii_0030	WTF-8	192.96	109.87	-43.06073797678275
x86	bench_from_wide_cjk_ascii_0040	WTF-8	275.38	171.98	-37.54811533154188
x86	bench_from_wide_cjk_ascii_0100	WTF-8	609.44	254.41	-58.25511945392492
x86	bench_from_wide_cjk_ascii_1000	WTF-8	5196.57	1519.98	-70.75032184691055
x86	bench_from_wide_cjk_ascii_100000	WTF-8	511766.0	138766.2	-72.8848340843276
x86	bench_from_wide_cyrillic_words_100000	WTF-8	466567.1	139809.31	-70.03446878273243
x86	bench_from_wide_err_ascii_end_100000	WTF-8	397366.75	10441.08	-97.37243239400377
x86	bench_from_wide_err_ascii_middle_100000	WTF-8	395711.1	10572.18	-97.32830845533522
x86	bench_from_wide_err_ascii_start_100000	WTF-8	395049.95	10600.49	-97.31667096781052
x86	bench_from_wide_err_cjk_end_100000	WTF-8	495277.55	138785.37	-71.97826350094003
x86	bench_from_wide_err_cjk_middle_100000	WTF-8	495257.15	138765.48	-71.98112536083528
x86	bench_from_wide_err_cjk_start_100000	WTF-8	495513.25	138698.73	-72.0090774565564
x86	bench_from_wide_latin10pct_100000	WTF-8	383188.6	141969.51	-62.95048704476072
x86	bench_from_wide_lone10pct_100000	WTF-8	389640.8	136898.67	-64.86541707131286
aarch64	bench_from_utf16_ascii_0004	strict	22.18	22.43	1.1271415689810604
aarch64	bench_from_utf16_ascii_0008	strict	27.42	32.44	18.307804522246517
aarch64	bench_from_utf16_ascii_0016	strict	38.5	31.76	-17.506493506493502
aarch64	bench_from_utf16_ascii_0030	strict	66.53	38.9	-41.530136780399815
aarch64	bench_from_utf16_ascii_0040	strict	80.36	25.41	-68.37979094076655
aarch64	bench_from_utf16_ascii_0100	strict	163.11	25.91	-84.11501440745509
aarch64	bench_from_utf16_ascii_1000	strict	1405.22	66.75	-95.24985411536984
aarch64	bench_from_utf16_ascii_100000	strict	138086.29	4707.61	-96.59082013138307
aarch64	bench_from_utf16_cjk_0004	strict	44.12	45.07	2.153218495013598
aarch64	bench_from_utf16_cjk_0008	strict	72.78	72.18	-0.8244023083264551
aarch64	bench_from_utf16_cjk_0016	strict	108.82	64.74	-40.507259694909024
aarch64	bench_from_utf16_cjk_0030	strict	164.34	174.97	6.4682974321528475
aarch64	bench_from_utf16_cjk_0040	strict	264.94	168.54	-36.385596738884274
aarch64	bench_from_utf16_cjk_0100	strict	391.91	231.55	-40.917557602510776
aarch64	bench_from_utf16_cjk_1000	strict	2393.2	1228.27	-48.67666722380076
aarch64	bench_from_utf16_cjk_100000	strict	227160.33	108178.67	-52.37783375292684
aarch64	bench_from_utf16_cjk_ascii_0004	strict	23.16	22.78	-1.6407599309153698
aarch64	bench_from_utf16_cjk_ascii_0008	strict	40.19	40.02	-0.42299079372977166
aarch64	bench_from_utf16_cjk_ascii_0016	strict	148.92	64.79	-56.49341928552243
aarch64	bench_from_utf16_cjk_ascii_0030	strict	158.66	121.12	-23.660658010840784
aarch64	bench_from_utf16_cjk_ascii_0040	strict	241.28	174.97	-27.482592838196286
aarch64	bench_from_utf16_cjk_ascii_0100	strict	373.31	231.77	-37.91486967935496
aarch64	bench_from_utf16_cjk_ascii_1000	strict	2763.88	1138.07	-58.82346556290432
aarch64	bench_from_utf16_cjk_ascii_100000	strict	260678.0	109633.75	-57.94284519598892
aarch64	bench_from_utf16_cjk_emoji5pct_0004	strict	44.06	45.26	2.723558783477076
aarch64	bench_from_utf16_cjk_emoji5pct_0008	strict	73.1	74.0	1.2311901504788114
aarch64	bench_from_utf16_cjk_emoji5pct_0016	strict	148.16	81.64	-44.89740820734342
aarch64	bench_from_utf16_cjk_emoji5pct_0030	strict	158.5	188.51	18.933753943217656
aarch64	bench_from_utf16_cjk_emoji5pct_0040	strict	209.84	176.17	-16.045558520777746
aarch64	bench_from_utf16_cjk_emoji5pct_0100	strict	379.72	283.16	-25.429263667965873
aarch64	bench_from_utf16_cjk_emoji5pct_1000	strict	2780.19	1949.52	-29.878173793877394
aarch64	bench_from_utf16_cjk_emoji5pct_100000	strict	267669.33	178137.0	-33.44885646779181
aarch64	bench_from_utf16_cyrillic_0004	strict	36.14	37.5	3.763143331488661
aarch64	bench_from_utf16_cyrillic_0008	strict	38.77	40.87	5.416559195254056
aarch64	bench_from_utf16_cyrillic_0016	strict	72.04	65.6	-8.939478067740158
aarch64	bench_from_utf16_cyrillic_0030	strict	175.13	113.06	-35.44224290527037
aarch64	bench_from_utf16_cyrillic_0040	strict	143.57	159.99	11.436929720693744
aarch64	bench_from_utf16_cyrillic_0100	strict	302.98	225.31	-25.63535546900786
aarch64	bench_from_utf16_cyrillic_1000	strict	2039.13	1255.9	-38.41000818976721
aarch64	bench_from_utf16_cyrillic_100000	strict	194880.4	102032.5	-47.64352905679586
aarch64	bench_from_utf16_cyrillic_words_0004	strict	37.58	38.59	2.6875997871208313
aarch64	bench_from_utf16_cyrillic_words_0008	strict	39.53	40.89	3.4404249936756948
aarch64	bench_from_utf16_cyrillic_words_0016	strict	77.83	63.71	-18.142104586920205
aarch64	bench_from_utf16_cyrillic_words_0030	strict	160.82	96.93	-39.72764581519711
aarch64	bench_from_utf16_cyrillic_words_0040	strict	143.29	158.3	10.475259962314198
aarch64	bench_from_utf16_cyrillic_words_0100	strict	330.81	213.15	-35.56724403736283
aarch64	bench_from_utf16_cyrillic_words_1000	strict	2817.98	1096.93	-61.07388980759267
aarch64	bench_from_utf16_cyrillic_words_100000	strict	274614.67	109513.33	-60.12109258401963
aarch64	bench_from_utf16_emoji_0004	strict	37.49	38.16	1.7871432381968422
aarch64	bench_from_utf16_emoji_0008	strict	37.87	39.88	5.307631370477961
aarch64	bench_from_utf16_emoji_0016	strict	66.02	72.55	9.890942138745839
aarch64	bench_from_utf16_emoji_0030	strict	141.28	98.75	-30.103340883352214
aarch64	bench_from_utf16_emoji_0040	strict	106.27	179.66	69.05994165804084
aarch64	bench_from_utf16_emoji_0100	strict	258.88	256.97	-0.7377935723114848
aarch64	bench_from_utf16_emoji_1000	strict	1615.4	1487.55	-7.91444843382445
aarch64	bench_from_utf16_emoji_100000	strict	152399.67	144694.33	-5.056008323377615
aarch64	bench_from_utf16_err_ascii_end_100000	strict	138076.86	4785.53	-96.53415496267803
aarch64	bench_from_utf16_err_ascii_middle_100000	strict	69083.57	2434.54	-96.47594934656676
aarch64	bench_from_utf16_err_ascii_start_100000	strict	37.95	42.48	11.936758893280608
aarch64	bench_from_utf16_err_cjk_end_100000	strict	227143.75	97600.8	-57.031263241889775
aarch64	bench_from_utf16_err_cjk_middle_100000	strict	114254.5	48879.1	-57.21910296749799
aarch64	bench_from_utf16_err_cjk_start_100000	strict	37.99	41.43	9.055014477494062
aarch64	bench_from_utf16_err_cyrillic_words_end_100000	strict	275997.67	108008.12	-60.866292820515476
aarch64	bench_from_utf16_err_cyrillic_words_middle_100000	strict	137868.86	53757.72	-61.00807680574134
aarch64	bench_from_utf16_err_cyrillic_words_start_100000	strict	37.96	30.52	-19.599578503688097
aarch64	bench_from_utf16_latin10pct_0004	strict	35.59	34.64	-2.6692891261590357
aarch64	bench_from_utf16_latin10pct_0008	strict	36.88	33.65	-8.758134490238623
aarch64	bench_from_utf16_latin10pct_0016	strict	66.03	63.99	-3.0895047705588374
aarch64	bench_from_utf16_latin10pct_0030	strict	156.01	85.42	-45.24709954490096
aarch64	bench_from_utf16_latin10pct_0040	strict	118.88	143.35	20.58378196500672
aarch64	bench_from_utf16_latin10pct_0100	strict	221.92	165.18	-25.567772170151404
aarch64	bench_from_utf16_latin10pct_1000	strict	1521.09	1078.34	-29.10741639219244
aarch64	bench_from_utf16_latin10pct_100000	strict	143320.67	97756.9	-31.79148548496181
aarch64	bench_from_utf16_latin1pct_0004	strict	35.59	34.65	-2.6411913458836866
aarch64	bench_from_utf16_latin1pct_0008	strict	36.78	33.66	-8.482871125611757
aarch64	bench_from_utf16_latin1pct_0016	strict	66.37	65.19	-1.777911707096591
aarch64	bench_from_utf16_latin1pct_0030	strict	104.61	82.91	-20.7437147500239
aarch64	bench_from_utf16_latin1pct_0040	strict	118.62	90.58	-23.638509526218176
aarch64	bench_from_utf16_latin1pct_0100	strict	218.28	104.84	-51.96994685724757
aarch64	bench_from_utf16_latin1pct_1000	strict	1599.92	448.76	-71.95109755487775
aarch64	bench_from_utf16_latin1pct_100000	strict	146190.67	37312.35	-74.4769279735841
aarch64	bench_from_utf16_lossy_ascii_100000	lossy	587893.0	4370.9	-99.2565143657094
aarch64	bench_from_utf16_lossy_cjk_100000	lossy	456071.0	99453.3	-78.19346110583659
aarch64	bench_from_utf16_lossy_cjk_ascii_0004	lossy	68.88	23.58	-65.76655052264809
aarch64	bench_from_utf16_lossy_cjk_ascii_0008	lossy	97.27	42.7	-56.10157294129742
aarch64	bench_from_utf16_lossy_cjk_ascii_0016	lossy	231.87	69.56	-70.00043127614612
aarch64	bench_from_utf16_lossy_cjk_ascii_0030	lossy	333.22	126.92	-61.91104975691735
aarch64	bench_from_utf16_lossy_cjk_ascii_0040	lossy	423.82	159.24	-62.427445613703924
aarch64	bench_from_utf16_lossy_cjk_ascii_0100	lossy	676.18	256.45	-62.0737081842113
aarch64	bench_from_utf16_lossy_cjk_ascii_1000	lossy	5268.82	1255.57	-76.16980652214347
aarch64	bench_from_utf16_lossy_cjk_ascii_100000	lossy	499336.0	109661.33	-78.03856921992406
aarch64	bench_from_utf16_lossy_cyrillic_words_100000	lossy	589271.0	109620.44	-81.39727901084561
aarch64	bench_from_utf16_lossy_err_ascii_end_100000	lossy	589359.0	5883.79	-99.00166282350825
aarch64	bench_from_utf16_lossy_err_ascii_middle_100000	lossy	589389.0	5934.36	-98.99313356713478
aarch64	bench_from_utf16_lossy_err_ascii_start_100000	lossy	589232.0	5907.2	-98.99747467890407
aarch64	bench_from_utf16_lossy_err_cjk_end_100000	lossy	456162.0	99514.0	-78.1845046277419
aarch64	bench_from_utf16_lossy_err_cjk_middle_100000	lossy	456336.5	99515.9	-78.19243036662638
aarch64	bench_from_utf16_lossy_err_cjk_start_100000	lossy	456155.0	99515.7	-78.18379717420613
aarch64	bench_from_utf16_lossy_latin10pct_100000	lossy	470284.5	100078.5	-78.71958357122125
aarch64	bench_from_utf16_lossy_lone10pct_100000	lossy	566964.0	97415.7	-82.8180096090757
aarch64	bench_from_utf16_rand3pct_0004	strict	22.19	22.44	1.126633618747186
aarch64	bench_from_utf16_rand3pct_0008	strict	27.43	32.34	17.900109369303685
aarch64	bench_from_utf16_rand3pct_0016	strict	38.42	31.14	-18.948464341488812
aarch64	bench_from_utf16_rand3pct_0030	strict	109.55	98.93	-9.694203560018245
aarch64	bench_from_utf16_rand3pct_0040	strict	120.89	96.27	-20.36562163950699
aarch64	bench_from_utf16_rand3pct_0100	strict	233.85	127.43	-45.50780414795808
aarch64	bench_from_utf16_rand3pct_1000	strict	1844.72	744.33	-59.650787111323126
aarch64	bench_from_utf16_rand3pct_100000	strict	167858.0	73099.61	-56.45151854543722
aarch64	bench_from_wide_ascii_100000	WTF-8	276051.33	4371.46	-98.41643219034663
aarch64	bench_from_wide_cjk_100000	WTF-8	346784.5	97561.9	-71.86670684531748
aarch64	bench_from_wide_cjk_ascii_0004	WTF-8	28.03	23.51	-16.125579735997142
aarch64	bench_from_wide_cjk_ascii_0008	WTF-8	49.19	39.55	-19.597479162431387
aarch64	bench_from_wide_cjk_ascii_0016	WTF-8	172.57	62.71	-63.661123022541574
aarch64	bench_from_wide_cjk_ascii_0030	WTF-8	234.98	113.81	-51.56609073112606
aarch64	bench_from_wide_cjk_ascii_0040	WTF-8	272.67	153.31	-43.774525983789935
aarch64	bench_from_wide_cjk_ascii_0100	WTF-8	505.24	230.39	-54.39988916158658
aarch64	bench_from_wide_cjk_ascii_1000	WTF-8	3950.33	1127.21	-71.46542187614706
aarch64	bench_from_wide_cjk_ascii_100000	WTF-8	381653.0	108169.78	-71.65755804356313
aarch64	bench_from_wide_cyrillic_words_100000	WTF-8	480036.12	107991.22	-77.50352202663416
aarch64	bench_from_wide_err_ascii_end_100000	WTF-8	277695.67	6003.78	-97.83800013878502
aarch64	bench_from_wide_err_ascii_middle_100000	WTF-8	277706.67	5944.38	-97.85947525135064
aarch64	bench_from_wide_err_ascii_start_100000	WTF-8	277700.0	5909.0	-97.87216420597767
aarch64	bench_from_wide_err_cjk_end_100000	WTF-8	346856.0	97668.0	-71.8419171068109
aarch64	bench_from_wide_err_cjk_middle_100000	WTF-8	346861.0	97608.4	-71.85950568095001
aarch64	bench_from_wide_err_cjk_start_100000	WTF-8	346841.5	97594.6	-71.86190233867632
aarch64	bench_from_wide_latin10pct_100000	WTF-8	440037.0	99273.56	-77.43972438681293
aarch64	bench_from_wide_lone10pct_100000	WTF-8	415860.0	97703.2	-76.50574712643679