On Tue, 22 Jun 2004, Tomasz Motylewski wrote: > 250 us without debug gived 26.77 MB/s reading speed and hangs on writing. > > I am testing writing currently with 500 us delay which gives 24.23 MB/s reading > speed and it hangs on simultaneous writing as well. > > I general, the code with enabled debugging alone seemed more stable than 500 us > delay and no debug. So probably the delay is in the wrong place?
Maybe. We don't know where the right place is, although between commands (where the patch puts it) seems like a good guess. And we don't know how long the delay should be. > P.S. Isn't that possible that one has to check the status of the > disk/controller/request before the next write data packet is sent? > It never hangs for me during reading. We do check the status before the next write. Alan Stern ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel