Best Large Memset Strategy

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	S	T	U	V	W	X	Y	Z	AA	AB	AC	AD	AE	AF	AG	AH	AI
1	Result comparing 'rep stosb', 'cacheable ymm loop', and 'non-cacheable ymm loop'
2	Colors are comparisons of the three methods. The value is computed as (Time_For_Method / Mean_Time_All_Methods)																	Raw times (measure with RDTSC)
3
4	model name : 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
5	microcode : 0x88
6	L1=48k	L2=1280K	L3=12228K (Shared)
7
8	Setting 0																	Setting 0
9
10		Threads	stosb	cacheable	non-cacheable	Threads	stosb	cacheable	non-cacheable	Threads	stosb	cacheable	non-cacheable	Threads	stosb	cacheable	non-cacheable		Threads	stosb	cacheable	non-cacheable	Threads	stosb	cacheable	non-cacheable	Threads	stosb	cacheable	non-cacheable	Threads	stosb	cacheable	non-cacheable
11	Size	1				2				4				8				Size	1				2				4				8
12	2 MB		1.09	0.934	0.977		0.987	0.76	1.254		0.826	0.581	1.593		1.006	0.897	1.097	2 MB		125571.849	107580.448	112557.256		152445.131	117375.444	193706.281		280162.187	196892.821	540222.392		676900.36	603196.572	738050.627
13	4 MB		1.112	0.953	0.935		1.066	0.773	1.161		1.019	0.801	1.18		0.805	1.363	0.832	4 MB		266858.363	228787.7	224545.796		356520.172	258642.063	388388.753		691404.336	543208.34	800992.668		1429465.345	2421439.85	1478305.902
14	6 MB		1.105	0.964	0.931		1.045	0.852	1.103		1.035	0.827	1.138		0.777	1.435	0.787	6 MB		402100.86	351051.462	338868.588		551767.818	449701.14	581993.569		1061449.073	848201.109	1167375.29		2189813.39	4043684.553	2217560.122
15	8 MB		1.089	1.001	0.909		1.044	0.879	1.077		0.779	1.421	0.8		0.767	1.447	0.786	8 MB		536845.998	493525.019	448269.688		753852.553	634123.314	777389.303		1430562.221	2608011.326	1467610.173		2964773.955	5595633.523	3039631.254
16	10 MB		1.052	1.069	0.878		0.983	1.016	1.001		0.78	1.44	0.78		0.766	1.474	0.76	10 MB		673526.22	684570.926	562312.905		954719.544	986965.884	971926.6		1826352.166	3372452.492	1825884.186		3724573.848	7163321.737	3693210.653
17	12 MB		0.968	1.221	0.811		0.731	1.528	0.741		0.758	1.489	0.754		0.765	1.483	0.752	12 MB		807858.845	1018617.733	677217.03		1149038.208	2402725.156	1164730.137		2205008.71	4333186.078	2193000.399		4508125.884	8736387.582	4430165.362
18	14 MB		0.89	1.369	0.741		0.706	1.584	0.71		0.752	1.501	0.747		0.762	1.488	0.75	14 MB		943588.119	1451230.958	786099.01		1351513.042	3031808.36	1358412.674		2582216.049	5151284.109	2562989.979		5259365.241	10263609.85	5173643.375
19	16 MB		0.85	1.445	0.705		0.718	1.561	0.72		0.741	1.525	0.734		0.764	1.491	0.745	16 MB		1081690.876	1838852.905	897562.248		1548744.799	3365699.763	1553199.485		2966463.698	6101465.394	2935928.095		6055429.357	11821601.51	5911268.728
20	18 MB		0.792	1.55	0.657		0.709	1.583	0.708		0.735	1.538	0.727		0.761	1.493	0.746	18 MB		1218037.231	2383587.558	1010724.313		1744805.925	3897336.416	1744408.289		3336867.512	6986292.945	3302216.695		6811062.616	13366271.92	6676382.768
21	20 MB		0.75	1.625	0.625		0.701	1.594	0.705		0.734	1.542	0.724		0.763	1.495	0.742	20 MB		1351462.937	2927532.5	1125010.353		1935005.061	4398068.4	1945357.498		3719832.845	7811318.349	3667411.551		7611567.986	14905387.51	7394863.192
22	22 MB		0.722	1.683	0.594		0.698	1.604	0.698		0.732	1.552	0.717		0.763	1.498	0.739	22 MB		1497983.436	3491180.58	1232774.029		2134694.905	4904340.736	2132813.439		4101756.52	8699921.75	4019912.06		8382946.967	16470432.56	8124528.345
23	24 MB		0.701	1.724	0.575		0.707	1.615	0.678		0.728	1.559	0.713		0.763	1.5	0.737	24 MB		1645408.964	4044224.188	1348897.744		2423299.565	5537151.497	2326338.864		4485477.112	9599271.637	4387070.845		9175501.278	18031044.43	8853151.511
24	26 MB		0.668	1.781	0.55		0.753	1.68	0.567		0.728	1.561	0.712		0.765	1.501	0.734	26 MB		1770606.641	4720457.539	1458765.228		3363140.825	7501449.596	2530490.627		4865832.184	10438908.37	4758714.83		9978620.393	19591892.85	9580619.277
25	28 MB		0.67	1.779	0.551		0.747	1.611	0.642		0.727	1.563	0.71		0.763	1.502	0.735	28 MB		1905376.66	5061354.718	1566969.704		3156114.087	6810471.904	2712238.186		5247643.918	11281364.06	5120068.522		10721066.95	21112330.55	10329207.46
26	30 MB		0.649	1.816	0.536		0.734	1.611	0.655		0.728	1.564	0.707		0.755	1.515	0.73	30 MB		2043428.693	5722036.72	1687423.086		3255119.296	7149844.901	2907196.119		5652328.544	12139059.25	5486767.408		11453589.14	22969131.01	11074727.72
27	32 MB		0.639	1.833	0.528		0.699	1.636	0.664		0.75	1.551	0.699		0.759	1.497	0.745	32 MB		2174233.134	6238822.204	1796416.827		3268286.266	7649233.412	3105267.196		6274291.696	12967216.74	5844197.734		12286545.49	24244625.14	12059391.38
28	128 MB		0.617	1.874	0.509		0.633	1.732	0.634		0.696	1.638	0.666		0.746	1.536	0.719	128 MB		8663587.018	26326051.73	7143551.41		11870139.63	32470324.84	11887116.86		23765654.91	55960372.7	22762492.41		47997076.66	98857470.07	46257057.13
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31	Setting -1																	Setting -1
32
33		Threads	stosb	cacheable	non-cacheable	Threads	stosb	cacheable	non-cacheable	Threads	stosb	cacheable	non-cacheable	Threads	stosb	cacheable	non-cacheable		Threads	stosb	cacheable	non-cacheable	Threads	stosb	cacheable	non-cacheable	Threads	stosb	cacheable	non-cacheable	Threads	stosb	cacheable	non-cacheable
34	Size	1				2				4				8				Size	1				2				4				8
35	2 MB		1.068	0.952	0.98		0.976	0.777	1.247		1.46	0.552	0.988		1.017	0.868	1.115	2 MB		122005.17	108692.993	112001.633		152294.004	121271.587	194626.093		531936.254	201084.35	359866.327		674140.13	575483.773	738789.252
36	4 MB		1.101	0.959	0.941		1.059	0.782	1.159		1.267	0.722	1.011		0.813	1.351	0.836	4 MB		262311.825	228461.635	224127.488		354506.522	261608.362	388127.226		949695.505	541333.039	757464.616		1440393.13	2392405.839	1480357.759
37	6 MB		1.108	0.96	0.932		1.037	0.863	1.1		0.908	0.845	1.246		0.78	1.431	0.789	6 MB		399619.401	346466.187	336267.694		549401.36	457283.586	582763.684		1064721.576	990986.006	1461217.528		2193387.375	4022362.734	2217124.061
38	8 MB		1.101	0.984	0.915		1.039	0.882	1.078		0.873	1.176	0.951		0.762	1.48	0.758	8 MB		539930.446	482309.769	448703.381		755066.791	640874.441	783227.275		1460910.947	1969438.967	1592631.795		2970349.349	5770966.101	2957838.121
39	10 MB		1.056	1.068	0.876		0.976	1.033	0.992		0.767	1.432	0.802		0.767	1.476	0.758	10 MB		675643.631	683158.092	560558.548		954673.15	1010864.366	970294.454		1841007.439	3437910.339	1925677.814		3736729.264	7193157.645	3692348.234
40	12 MB		0.984	1.203	0.814		0.753	1.487	0.76		0.755	1.468	0.777		0.762	1.484	0.754	12 MB		811551.032	992428.796	671439.235		1152696.235	2277508.288	1164144.092		2206467.07	4289300.638	2268559.123		4494173.691	8746156.019	4442731.002
41	14 MB		0.898	1.357	0.745		0.705	1.585	0.71		0.753	1.502	0.745		0.763	1.49	0.746	14 MB		944836.036	1427105.984	783312.882		1348954.702	3034696.64	1359213.015		2588930.623	5166286.397	2561464.657		5292581.27	10331809.83	5175175.28
42	16 MB		0.853	1.436	0.711		0.715	1.569	0.716		0.745	1.521	0.735		0.761	1.493	0.745	16 MB		1080492.79	1819555.309	900089.96		1550822.248	3402317.059	1551720.075		2967183.345	6058831.168	2926781.636		6043376.52	11854606.84	5916567.143
43	18 MB		0.799	1.538	0.662		0.71	1.577	0.714		0.749	1.524	0.727		0.76	1.5	0.739	18 MB		1221123.313	2350465.586	1012118.208		1736799.484	3856801.691	1745571.632		3393159.096	6903652.889	3290967.12		6828096.826	13473485.49	6638504.67
44	20 MB		0.748	1.63	0.622		0.699	1.598	0.703		0.742	1.536	0.722		0.761	1.501	0.738	20 MB		1352337.885	2945848.034	1123119.602		1934976.008	4425225.632	1945919.927		3763740.759	7790932.032	3662817.796		7613443.308	15009816.22	7385412.202
45	22 MB		0.72	1.686	0.594		0.697	1.608	0.695		0.737	1.545	0.718		0.76	1.504	0.736	22 MB		1493661.478	3495607.958	1231227.452		2137189.527	4933650.558	2133614.579		4133818.644	8664079.514	4024026.74		8383052.317	16591032.53	8114179.956
46	24 MB		0.687	1.748	0.565		0.691	1.617	0.691		0.734	1.549	0.717		0.766	1.502	0.733	24 MB		1629979.092	4145938.084	1340111.11		2330815.025	5453007.191	2330896.99		4513130.014	9518694.05	4403320.678		9279979.073	18192254.69	8875210.245
47	26 MB		0.693	1.732	0.575		0.587	1.826	0.586		0.737	1.552	0.711		0.744	1.539	0.718	26 MB		1763319.363	4409254.762	1462778.275		2526324.736	7854545.76	2521141.672		4931984.557	10381853.01	4759778.851		9945994.704	20584509.96	9598209.529
48	28 MB		0.649	1.815	0.536		0.655	1.694	0.652		0.733	1.56	0.708		0.747	1.534	0.72	28 MB		1899324.77	5313300.593	1569586.505		2730161.435	7064587.302	2717328.036		5302016.716	11289741.27	5122412.229		10750940.4	22085802.49	10364701.95
49	30 MB		0.675	1.77	0.554		0.677	1.647	0.676		0.724	1.571	0.705		0.746	1.535	0.719	30 MB		2047215.183	5368685.29	1681446.048		2920589.364	7106869.375	2914173.949		5629762.349	12226289.65	5487612.59		11495035.81	23661503.38	11073801.42
50	32 MB		0.652	1.816	0.532		0.675	1.654	0.671		0.726	1.567	0.707		0.74	1.546	0.714	32 MB		2195753.872	6113754.093	1792151.769		3124127.675	7661567.808	3106808.504		6017032.119	12992756.18	5862220.726		12303193.79	25686158.73	11854971.79
51	128 MB		0.626	1.858	0.516		0.658	1.718	0.624		0.696	1.647	0.657		0.745	1.547	0.707	128 MB		8676116.531	25768557.09	7155937.996		12461521.2	32511449.82	11804988.62		23558049.81	55738871.71	22238623.95		48886707.81	101481547.9	46380284.35
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