Kernel I/O Scheduler Benchmarks

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	U	V	W	X	Y	Z	AA	AB	AC	AD	AE	AF	AG	AH	AI	AJ	AK	AL	AM
1	Thanks to Eugene373 for the kernel	Visit my thread >>	http://goo.gl/gyjis	Vote for your favourite >>	http://goo.gl/o8iyC
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4	Thanks to Eugene373 and r_data. If you are using one of these kernels, you should pick the top one off their list. Otherwise, use the OVERALL rankings as a guide.	Ondemand Summary: Eugene's ICUP Speedy 6		Air Kernel 2.2 by r_data			Conservative Summary: Eugene's ICUP Speedy 6		Air Kernel 2.2 by r_data			Performance Summary		Air Kernel 2.2 by r_data
5		deadline	32.71	noop	37.95		cfq	37.03	deadline	32.29		v(r)	40.72	noop	38.43
6		sio	32.56	deadline	34.77		noop	31.14	cfq	32.02		deadline	40.33	cfq	36.01
7		v(r)	31.66	sio	34.00		bfq	28.80	noop	31.64		sio	40.01	deadline	35.89
8		noop	30.99	cfq	33.59		deadline	27.42	sio	30.76		noop	39.85	sio	31.20
9		cfq	30.90	OVERALL			v(r)	27.39	OVERALL			cfq	39.16	OVERALL
10		bfq	25.70	#1 noop	68.93		sio	25.15	#1 cfq	69.05		bfq	33.04	#1 noop	78.28
11				#2 deadline	67.48				#2 noop	62.78				#2 deadline	76.22
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13		SmartassV2 Summary: Eugene's ICUP Speedy 6		Air Kernel 2.2 by r_data			LulzactiveV2 Summary: Eugene's ICUP Speedy 6		Air Kernel 2.2 by r_data			Lazy Summary: Eugene's ICUP Speedy 6		Air Kernel 2.2 by r_data
14		deadline	38.61	sio	37.06		cfq	34.52	noop	38.65		deadline	32.45	deadline	35.19
15		noop	37.53	noop	37.04		sio	33.88	deadline	37.89		v(r)	32.42	sio	33.82
16		v(r)	36.28	cfq	35.08		v(r)	33.55	sio	32.69		noop	31.65	cfq	33.81
17		sio	36.07	deadline	32.06		deadline	31.71	cfq	31.68		cfq	31.00	noop	31.67
18		cfq	30.72	OVERALL			noop	29.92	OVERALL			sio	27.89	OVERALL
19		bfq	30.40	#1 noop	74.57		bfq	25.38	#1 deadline	69.59		bfq	24.03	#1 deadline	67.64
20				#2 sio	73.14				#2 noop	68.57				#2 cfq	64.81
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23	Discover more about I/O schedulers:	http://goo.gl/SQfj2											Here are the statistics. I've included the median with a percentage that represents how close it is to the mean. Results close to 100% indicate we have a good true mean for what we would expect to be normally distributed data			Beneath you can see a column with the heading Mean - 3std. dev.s: This is a way of calculating what minimum score 99.7% of all results would be higher than.																Here are the statistics. I've included the median with a percentage that represents how close it is to the mean. Results close to 100% indicate we have a good true mean for what we would expect to be normally distributed data			Beneath you can see a column with the heading Mean - 3std. dev.s: This is a way of calculating what minimum score 99.7% of all results would be higher than.
24	Discover more about CPU governors:	http://goo.gl/7B4yQ
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26			Below is raw data	It is very boring	But further right >>	>>	>>	>>	>>	>>	>>	>>								Thanks to r_data for the kernel		Below is raw data	It is very boring	But further right >>	>>	>>	>>	>>	>>	>>	>>
27	Governor/Scheduler																			Governor/Scheduler
28	performance		#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	MEAN	MEDIAN	Std. Dev. (lower is better)	Mean - 3std.dev.s	Peak (best score)	Performance Summary		performance		#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	MEAN	MEDIAN	Std. Dev. (lower is better)	Mean - 3std.dev.s	Peak (best score)	Performance Summary
29	bfq	database io	220	225	225	205	210	230	220	225	215	230	220.5	222.5	8.32	195.55	230			cfq	database io	290	280	310	300	305	310	310	310	305	270	299	305	14.30	256.10	310
30		sd write	9.8	8.4	10.1	10	9.6	9.5	10	10.4	10.4	10.3	9.85	10	0.60	8.06	10.4				sd write	9.9	9.6	9.8	10.4	9.6	10.2	10.2	10.3	9.8	10.2	10	10.05	0.29	9.12	10.4
31		sd read	24.5	24.3	24	25	24.8	24.7	24.9	23.7	24.1	24.4	24.44	24.45	0.42	23.17	25				sd read	22.4	22.5	22.1	22.6	22.8	21.2	21.7	21.3	22.9	22.8	22.23	22.45	0.63	20.34	22.9
32														99.59%		33.04	bfq	1) v(r)	40.72														99.42%		36.01	cfq	noop	38.43
33	cfq	database io	335	345	335	345	335	335	345	360	325	340	340	337.5	9.43	311.72	360	2) deadline	40.33	deadline	database io	305	310	285	315	310	315	290	310	300	310	305	310	10.27	274.18	315	cfq	36.01
34		sd write	9.5	9.7	9.6	9.6	9.2	9.4	9.8	9.5	9.2	9.3	9.48	9.5	0.20	8.87	9.8	3) sio	40.01		sd write	10.2	9.5	9.9	10	9.4	9.7	10.1	9.6	9.9	10.3	9.86	9.9	0.30	8.95	10.3	deadline	35.89
35		sd read	22.6	22.5	22.5	22.1	22.4	22.4	22.3	22.5	22.6	21.9	22.38	22.45	0.23	21.70	22.6	4) noop	39.85		sd read	22.9	26.8	26.5	22.8	26.4	26.2	23.1	27.1	26.2	22.9	25.09	26.2	1.88	19.44	27.1	sio	31.20
36														100.04%		39.16	cfq	5) cfq	39.16														98.95%		35.89	deadline
37	deadline	database io	350	355	335	345	335	345	340	335	340	345	342.5	342.5	6.77	322.19	355	6) bfq	33.04	noop	database io	305	305	305	300	310	320	315	300	325	305	309	305	8.43	283.70	325
38		sd write	8.8	8.8	9.1	9	9.2	9.1	8.9	9	9	9.2	9.01	9	0.14	8.58	9.2				sd write	10.3	10.3	9.3	10	10.1	9	10.3	10.6	9.4	10.1	9.94	10.1	0.52	8.37	10.6
39		sd read	24.4	24.9	25	24.6	24.1	24.8	24.3	24.5	24.8	24.7	24.61	24.65	0.28	23.76	25				sd read	25.2	27.4	26.6	26.9	26.5	27.8	26.8	28.4	26.1	25.8	26.75	26.7	0.95	23.91	28.4
40														99.99%		40.33	deadline																99.98%		38.43	noop
41	noop	database io	360	345	345	345	345	355	350	340	350	335	347	345	7.15	325.55	360			sio	database io	295	320	320	315	315	310	315	265	215	300	297	312.5	33.27	197.20	320
42		sd write	8.7	9	9	8.8	8.9	9	8.2	8.8	8.6	8.7	8.77	8.8	0.25	8.03	9				sd write	10.2	10.7	10	8.6	10.2	10.3	9.6	10.2	10.5	10.6	10.09	10.2	0.61	8.26	10.7
43		sd read	24.7	24.9	24.9	25	24.8	24.4	24.8	25	24.5	24.8	24.78	24.8	0.20	24.18	25				sd read	24	23.6	27.5	22	26.4	24.7	22.4	23.2	24.2	23.6	24.16	23.8	1.69	19.08	27.5
44														100.03%		39.85	noop																99.23%		31.20	sio
45	sio	database io	360	325	350	355	345	360	350	350	350	350	349.5	350	9.85	319.96	360
46		sd write	9.9	9.9	10	9.6	10.1	10.1	10.4	9.9	10.4	9.6	9.99	9.95	0.28	9.16	10.4			Governor/Scheduler
47		sd read	22.6	22.7	22.7	22.6	22.8	22.7	22.1	22.2	22.6	22.8	22.58	22.65	0.24	21.86	22.8			conservative		#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	MEAN	MEDIAN	Std. Dev. (lower is better)	Mean - 3std.dev.s	Peak (best score)	Conservative Summary
48														99.99%		40.01	sio			cfq	database io	295	295	285	295	305	300	305	285	205	305	287.5	295	29.93	197.71	305
49	v(r)	database io	370	360	355	355	345	365	355	345	355	350	355.5	355	7.98	331.57	370				sd write	10	9.8	9.9	9.9	10.2	9.8	10	9.9	9.7	9.6	9.88	9.9	0.17	9.37	10.2
50		sd write	9.6	9.8	9.5	9.7	9.4	9.1	10	9.4	9.4	9.6	9.55	9.55	0.25	8.80	10				sd read	18.7	18.7	18.9	18.6	18.4	18.6	18.5	19.2	18.5	19.1	18.72	18.65	0.27	17.92	19.2
51		sd read	24.3	24.3	24.5	23.8	24.2	23.9	24.2	24.2	24.6	23.5	24.15	24.2	0.33	23.16	24.6																99.60%		32.02	cfq
52														99.99%		40.72	v(r)			deadline	database io	305	280	300	305	290	300	280	290	240	285	287.5	290	19.18	229.95	305
53	Governor/Scheduler																				sd write	9.8	8.9	10.1	10.2	10.1	10.1	9.7	9.9	10.3	10	9.91	10.05	0.40	8.71	10.3	deadline	32.29
54	smartassV2		#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	MEAN	MEDIAN	Std. Dev. (lower is better)	Mean - 3std.dev.s	Peak (best score)	SmartassV2 Summary	SmartassV2 is based on interactive		sd read	19.7	23.7	19.8	20.6	19.7	19.7	20.8	20	20	21.6	20.56	20	1.27	16.76	23.7	cfq	32.02
55	bfq	database io	230	235	220	240	240	240	235	240	235	235	235	235	6.24	216.29	240																100.08%		32.29	deadline	noop	31.64
56		sd write	9	8.2	9	9.3	7.7	9.5	9.4	8.3	8.4	9.2	8.8	9	0.61	6.98	9.5			noop	database io	240	295	260	300	290	295	300	300	215	275	277	292.5	29.65	188.06	300	sio	30.76
57		sd read	20.8	21.1	20.7	21	23.1	20.4	21.4	20.7	21	20.5	21.07	20.9	0.77	18.75	23.1				sd write	10.2	9.7	10.2	10	10.2	9.9	10.2	9.4	8.4	9.3	9.75	9.95	0.58	8.01	10.2
58														99.76%		30.40	bfq	1) deadline	38.61		sd read	22.4	23.1	22.9	22.8	22.5	22.5	22.9	23.3	22.4	22.7	22.75	22.75	0.31	21.83	23.3
59	cfq	database io	350	295	345	225	270	345	335	330	350	350	319.5	340	42.72	191.35	350	2) noop	37.53														98.77%		31.64	noop
60		sd write	9.6	9.6	8.6	9.2	9	9	8.9	9.4	9.6	9.5	9.24	9.3	0.35	8.18	9.6	3) sio	36.07	sio	database io	290	275	290	235	270	265	310	285	250	235	270.5	272.5	24.77	196.19	310
61		sd read	19.5	20.7	20.9	20.5	21	21.1	20.7	20.4	21.2	20.9	20.69	20.8	0.49	19.22	21.2	4) v(r)	36.28		sd write	9	9.2	9.6	10	9.5	10.2	10.3	9.6	9.5	9.5	9.64	9.55	0.41	8.40	10.3
62														98.78%		30.72	cfq	5) cfq	30.72		sd read	20.2	20.4	18.8	18.5	19.1	19.5	19.8	19.2	20	19.6	19.51	19.55	0.61	17.67	20.4
63	deadline	database io	350	350	355	365	355	360	360	360	350	355	356	355	5.16	340.51	365	6) bfq	30.40														100.00%		30.76	sio
64		sd write	9	9.3	9.9	9.4	9.8	9.8	9.8	9.3	9.5	9.6	9.54	9.55	0.29	8.67	9.9
65		sd read	22.3	21.7	20.8	23.1	22.6	21.3	21.3	22	22.2	20.8	21.81	21.85	0.77	19.51	23.1			Governor/Scheduler
66														100.00%		38.61	deadline			lazy		#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	MEAN	MEDIAN	Std. Dev. (lower is better)	Mean - 3std.dev.s	Peak (best score)	Lazy Summary
67	noop	database io	325	355	350	355	355	360	355	365	365	350	353.5	355	11.32	319.55	365			cfq	database io	285	270	265	275	280	285	275	305	295	285	282	282.5	11.83	246.50	305
68		sd write	9.3	9.3	9.9	9.9	9.9	9.4	9.6	9.7	9.9	9.5	9.64	9.65	0.25	8.88	9.9				sd write	9.6	9.6	9.7	9.5	9.8	9.8	9.6	9.4	9.6	10	9.66	9.6	0.17	9.15	10
69		sd read	24	22.3	21.1	21.5	20.5	23.1	22.1	21.7	20.9	23.4	22.06	21.9	1.15	18.62	24				sd read	18.1	17.6	18.2	18.2	17.9	18.2	17.7	18.2	17.7	17.6	17.94	18	0.27	17.14	18.2
70														100.03%		37.53	noop																100.02%		33.81	cfq	deadline	35.19
71	sio	database io	345	360	360	355	355	355	355	345	305	350	348.5	355	16.17	300.00	360			deadline	database io	270	275	280	280	270	285	285	280	280	285	279	280	5.68	261.97	285	sio	33.82
72		sd write	10.1	10.1	9.8	10.2	10	10.1	10.3	8.5	9.3	9.5	9.79	10.05	0.55	8.13	10.3				sd write	9.9	9.6	10	9.8	10	10.1	9.6	9.6	9.8	9.7	9.81	9.8	0.19	9.25	10.1	cfq	33.81
73		sd read	21.3	20.8	20.9	20.9	21.1	20.6	20.7	22.3	21	21	21.06	20.95	0.48	19.62	22.3				sd read	18.8	18.5	18.9	18.5	18.3	18.7	18.6	18.4	18.9	18.7	18.63	18.65	0.21	18.01	18.9	noop	31.67
74														99.35%		36.07	sio																99.94%		35.19	deadline
75	v(r)	database io	375	315	345	355	350	360	360	355	360	350	352.5	355	15.50	306.00	375			noop	database io	275	280	280	270	255	285	295	240	280	280	274	280	15.78	226.67	295
76		sd write	9	9.4	9.2	9.7	10	9.5	9.5	10.2	10	9.5	9.6	9.5	0.38	8.47	10.2				sd write	9.6	9.1	8.8	9.2	9.5	8.5	9.9	9	9.7	9.8	9.31	9.35	0.46	7.92	9.9
77		sd read	23.6	21.5	20.3	20.9	20.9	22.6	23.1	21.1	21.1	20.6	21.57	21.1	1.13	18.19	23.6				sd read	21.7	18.6	20.6	21.5	21.1	21.1	20.6	20.9	22.3	20.6	20.9	21	0.98	17.97	22.3
78														100.43%		36.28	v(r)																99.49%		31.67	noop
79	Governor/Scheduler																			sio	database io	285	295	255	305	270	290	280	285	265	285	281.5	285	14.73	237.31	305
80	conservative												MEAN	MEDIAN	Std. Dev. (lower is better)	Mean - 3std.dev.s	Peak (best score)	Conservative Summary			sd write	9.6	9.5	9.6	9.9	9.6	9.8	9.6	9.5	9.8	9.6	9.65	9.6	0.14	9.24	9.9
81	bfq	database io	230	225	225	230	215	225	225	220	225	225	224.5	225	4.38	211.37	230				sd read	18.5	18.6	18.5	18.6	18.5	18.4	19.2	19.6	19	18.9	18.78	18.6	0.39	17.62	19.6
82		sd write	9.5	9.1	9.4	9.1	9.1	9	8.3	8.3	9.7	9.6	9.11	9.1	0.49	7.64	9.7	1) cfq	37.03														100.04%		33.82	sio
83		sd read	18.9	20	16.1	18.8	19.3	19.6	19.7	19.4	16.9	19.2	18.79	19.25	1.27	14.97	20	2) noop	31.14
84														99.58%		28.80	bfq	3) bfq	28.80	Governor/Scheduler
85	cfq	database io	350	350	345	345	325	340	350	340	335	340	342	342.5	7.89	318.34	350	4) v(r)	27.39	Ondemand		#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	MEAN	MEDIAN	Std. Dev. (lower is better)	Mean - 3std.dev.s	Peak (best score)	Ondemand Summary
86		sd write	9.5	9.9	9.4	10	9.9	9.5	9.8	10	10	10	9.8	9.9	0.24	9.08	10	5) sio	25.15	cfq	database io	310	315	330	320	300	295	310	310	310	255	305.5	310	20.20	244.90	330
87		sd read	18.7	19.2	18.2	18.9	19.2	19.1	18.6	19.3	19.6	19.5	19.03	19.15	0.43	17.73	19.6	6) deadline	27.42		sd write	9.6	9.7	9.9	9.1	9.9	9.8	9.4	9.6	9.8	9.3	9.61	9.65	0.27	8.80	9.9
88														99.70%		37.03	cfq				sd read	21.5	19.7	21.1	21.2	21	18.5	20.6	21	20.2	20.8	20.56	20.9	0.89	17.89	21.5
89	deadline	database io	330	260	355	340	240	275	340	330	335	345	315	332.5	40.62	193.14	355																99.42%		33.59	cfq
90		sd write	8.2	9.6	8.8	9.1	8.9	9.1	9.3	9.1	9.8	9.4	9.13	9.1	0.45	7.79	9.8			deadline	database io	305	305	320	320	315	275	300	305	300	305	305	305	12.91	266.27	320
91		sd read	17	15.9	17	18.6	17.1	19.5	18.3	16.8	18	15.9	17.41	17.05	1.17	13.90	19.5				sd write	9.9	9.7	9.3	10	10	8.7	8.9	8.9	9.3	9.8	9.45	9.5	0.49	7.97	10	noop	37.95
92														99.50%		27.42	deadline				sd read	21.2	23	22.2	21.1	22.8	22.8	22.1	21.2	21.8	22.2	22.04	22.15	0.71	19.92	23	deadline	34.77
93	noop	database io	330	340	285	335	330	330	350	315	345	365	332.5	332.5	21.51	267.98	365																99.83%		34.77	deadline	sio	34.00
94		sd write	8.9	9.2	9.6	9.4	9	9.7	9.5	9.6	9.4	9.8	9.41	9.45	0.30	8.52	9.8			noop	database io	300	305	300	310	305	315	300	320	310	290	305.5	305	8.64	279.57	320	cfq	33.59
95		sd read	16.3	20.3	18.9	15.2	19	18.3	18.9	16.9	18.9	17.6	18.03	18.6	1.52	13.46	20.3				sd write	9.8	9	9.7	9.6	9	9.7	9.9	8.9	9.6	9.8	9.5	9.65	0.38	8.36	9.9
96														99.41%		31.14	noop				sd read	24.9	25.3	25.8	25.8	26.2	27.5	25	25.9	25.4	26.1	25.79	25.8	0.75	23.55	27.5
97	sio	database io	360	235	255	340	345	345	335	340	225	195	297.5	337.5	62.28	110.65	360																99.76%		37.95	noop
98		sd write	9.7	9.5	9.6	9.9	9.9	9.5	10.1	9.8	10	10	9.8	9.85	0.22	9.15	10.1			sio	database io	280	240	305	315	295	310	295	305	300	315	296	302.5	22.34	228.99	315
99		sd read	19.5	19.1	18.3	17.5	18.9	19.6	18.1	19.2	19.3	18.9	18.84	19	0.67	16.82	19.6				sd write	9.9	9.6	9.9	9.1	9.8	9.9	9.8	9.3	9.8	9.8	9.69	9.8	0.28	8.86	9.9
100														97.73%		25.15	sio				sd read	21.1	21.8	21.7	21.5	20.2	22.1	22.3	21.7	21.3	21.3	21.5	21.6	0.59	19.74	22.3