On a Thinkpad X41 running linux / ALSA:
Requested buffer samples,Samples output,Time taken to output (ns),Hz
1,44180,1022729082,43198.145548
2,44180,1020986387,43271.880394
4,44180,1021034300,43269.848845
8,44180,1021104583,43266.871032
16,44180,1021062806,43268.641941
32,44180,1021062218,43268.666349
64,44180,1021060155,43268.753136
128,44180,1021071699,43268.264966
256,44180,1021058086,43268.839923
512,44180,1021076271,43268.069702
1024,44180,1020478528,43293.414597
2048,44180,1020779636,43280.643464
4096,44180,1020960683,43272.968124
8192,44180,1020963454,43272.851482
16384,44180,1020791572,43280.138745
32768,44180,1020951562,43273.356031