On Thu, 7 Jul 2005, vitko wrote: > This is pretty strange - with 2.6.12.1 I'm getting write trasfer rates 58 > kB/s with USB > 1.1 device and 160 kB/s with USB 2.0 device (as opposed to 225 kB/s and 4 > MB/s > respectively with 2.6.11). > > It doesn't seem to be hardware related, as this speed drop is seen both on > PCI USB 2.0 NEC > card and on on-board Intel USB 1.1. > > Any ideas gentlemen? Kernel config and dmesg attached.
There's no obvious reason for this. Unless you are encountering some sort of error during your transfers, causing some of the operations to be retried? If there were any errors, they would should up in the log when you turn on CONFIG_USB_STORAGE_DEBUG. Alan Stern ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
