Hello, Recently I have done a performance comparison of OMAP3 'USB OTG Host' and 'SD' drivers on different Linux Kernels. The performance of latest git kernel is less comparing to 2.6.22 TI kernel. Could some one please explain me what cause this performance difference?
The performance is calculated by doing data transfer between RAM and the storage device (using 'time' command). The performance details are given below. 1) 2.6.29-rc2 kernel USB OTG (Host) Read (4.2 MB/s) Write (2.6 MB/s) SD Card Read (3.88 MB/s) Write (3.1 MB/s) 2) 2.6.28 kernel USB OTG (Host) error error SD Card Read (4.2 MB/s) Write (3.27 MB/s) 3) 2.6.22 TI kernel USB OTG (Host) Read (5.4MB/s) Write (6.14MB/s) SD Card Read (6.7MB/s) Write (6.43MB/s) Regards, Remith -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
