Re: [PATCH 1/2] USB: add usb_autopm_get_interface_burst()
Alan Stern <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Mon, 9 Jul 2007, Oliver Neukum wrote: > Am Freitag, 6. Juli 2007 schrieb Alan Stern: > > This patch (as929) adds usb_autopm_get_interface_burst() to the > > autosuspend programming interface. It is intended for situations > > where I/O events occur in bursts of activity; it reduces overhead by > > not cancelling the device's autosuspend timer. > > Do you have numbers on how many del/mod_timer cycles you need > to outweigh one timer firing needlessly? Under which circumstances should > this API be used? I don't have any hard numbers. In fact, I can't even think of a good way to get them. Do you have any suggestions? Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel