On Tue, 10 Apr 2001, Matthew Dharm wrote: > I call this the "turn time" problem.. I've known about it for a while, and > it's much bigger than just this. > > On Tue, Apr 10, 2001 at 10:43:11PM +0200, Sancho Dauskardt wrote: > > > > I had major performance problems reading the SSFDC mapping table: that > > involed to usb_stor_bulk_msg() for each of the 4096 blocks and took around > > 17 sek (and only around 6 sek same device under Win98 ).. I guessed that > > this could possibly be a schedluing issue, and tried following: Hi Matthew, is this "turn time" problem you are talking about something specific for usb-storage class or more general? Could you give some indication please how to observe this - trigger, signature e.g.? I'm asking because I've done several performance (latency and throughput) measurements recently for bulk transfer and don't see any such problem or bottleneck. I could post some detailed numbers from the measurements if you are interested. Martin _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: http://lists.sourceforge.net/lists/listinfo/linux-usb-devel
