Redo Log question

Hi,

	Our application has peak periods of heavy updates. During that time
	a large number of redo logs are generated. The cpu for writing
	these logs takes away from processing and reduces the thruput.
	Currently we have 3 logs of 10Megs. The question is:
	would it be better to have fewer smaller logs, e.g., 10 each 1M.
	Or, increase the size of the log file to handle the peak period
	within one log file, e.g., 3 logs of 50M?

	Thanks for any info.
		parris