Re: Zero Copy IO

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Mon Apr 09 2001 - 14:23:47 EST


> advantageous to enable zero copy IO than copy_from_user() and copy_to_user
> () all the data. Other OS such as AIX and OS2 have kernel functions that
> can be used to accomplish such a task. Has any ground work been done in
> Linux 2.4 to enable "zero copying IO"?

kiovecs support this. Note that the current kiovec has problems when it comes
to certain kinds of latency critical use and the 2.5 kernel meeting hashed out
some big changes here. But for 2.4 the kiovecs are there
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sun Apr 15 2001 - 21:00:11 EST