SVR3.0 vs BSD4.3

[Eduardo Krell]

In article <4441 at megaron.arizona.edu> lm at megaron.arizona.edu.UUCP (Larry McVoy) writes:

>(It should be obvious but I'll drive it home:  the streams code that I've
>seen copies the data out of the upper level buffer and then into the 
>lower level buffer [assuming "downward" movement].  The copying dominates
>the time spent in the streams drivers.  If streams can handle imbedded 
>pointers in their data then my comments are meaningless.)

Well, now. The streams modules that I've seen so far avoid copying data
as much as possible. Passing a message up or downstream is often
accomplished by just passing pointers to the data.
    
    Eduardo Krell                   AT&T Bell Laboratories, Murray Hill, NJ

    UUCP: {ihnp4,ucbvax}!ulysses!ekrell		ARPA: ekrell at ulysses.att.com