FreeBSD Raid Stripe Size Emperical Results
Standard newfs Configuration (Defaults Used, 16KB blocks)
System wiped clean and reinstalled for each stripe size (minimal configuration plus ports)
Each test run twice/thrice to confirm order of magnitude of results
Dell XPS120c - 400MHz/96MB
Adaptec 2400a Raid5 Controller (I20 BIOS)
4x200GB WD 7200RPM IDE Drives (8MB Buffers)
Bonnie
Sequential Output (Per Char)
	K/Sec	%CPU	Latency (ms)
8k	19	99	534
16k	16	99	632
32k	17	99	588
256k	15	99	590
Sequential Output (Block)
	K/Sec	%CPU	Latency (ms)
8k	7885	47	779
16k	7995	50	1499
32k	9229	60	1914
256k	11460	69	2719
Sequential Output (Rewrite)
	K/Sec	%CPU	Latency (ms)
8k	4881	27	2516
16k	5747	32	1477
32k	6407	36	2132
256k	4729	26	1406
Sequential Input (Per Char)
	K/Sec	%CPU	Latency (ms)
8k	50	99	189
16k	53	99	422
32k	56	99	160
256k	49	99	194
Sequential Input (Block)
	K/Sec	%CPU	Latency (ms)
8k	12143	54	49
16k	12698	59	56
32k	15730	74	28
256k	5465	23	262
Random
	K/Sec	%CPU	Latency (ms)
8k	83	25	4876
16k	91.5	27	4028
32k	114.9	34	3429
256k	62.3	18	5485
Sequential Create (Create)
	K/Sec	%CPU	Latency (ms)
8k	409	24	233
16k	406	25	238
32k	414	25	252
256k	336	21	243
Sequential Create (Read)
	K/Sec	%CPU	Latency (us)
8k	6781	99	2439
16k	6777	99	2786
32k	6951	99	2516
256k	6334	99	6054
Sequential Create (Delete)
	K/Sec	%CPU	Latency (ms)
8k	785	27	51
16k	782	32	52
32k	798	36	48
256k	654	26	109
Random Create (Create)
	K/Sec	%CPU	Latency (ms)
8k	417	24	126
16k	418	25	192
32k	422	25	124
256k	350	21	142
Random Create (Read)
	K/Sec	%CPU	Latency (us)
8k	6769	99	1076
16k	7049	99	982
32k	7181	99	1058
256k	6540	99	1078
Random Create (Delete)
	K/Sec	%CPU	Latency (ms)
8k	584	21	373
16k	597	22	296
32k	600	22	430
256k	471	17	534
IOZONE
1024MB Sequential File - Each Record 128 Bytes In Length
	Read	Write	(In KBytes/sec)
8k	2073	5739
16k	2065	5808
32k	2035	6124
256k	1901	3526
1024MB Sequential File - Each Record 65,536 Bytes In Length
	Read	Write	(In KBytes/sec)
8k	8069	10630
16k	8454	11476
32k	10151	14328
256k	11612	4583