Mike Meyer wrote:
In <[EMAIL PROTECTED]>, Hartmut Brandt <[EMAIL PROTECTED]> typed:
Mike Meyer wrote:
In <[EMAIL PROTECTED]>, Hartmut Brandt <[EMAIL PROTECTED]> typed:
1. make and its sub-makes for a) reading the file; b) parsing the file
(note that .if and .for processing is done while parsing); c) processing
targets.
Make and submakes have been gone over already. See <URL:
http://miller.emu.id.au/pmiller/books/rmch/ >.
I'm not sure it can be applied to the ports tree, though. I haven't
looked into it, but recalled this paper when you mentioned measuring
makes and sub-makes.
Unfortunately you deleted the sentence before, so I rephrase it: before
looking into optimizations find out where the time is actually spend -
how many seconds of the hours the process takes, are actually spent in
make and sub-makes. If the entire process takes 2 hours of which the
makes take 20 seconds then by enhancing performance of make by 50% you
win 10 seconds. This is probably not worth a single line of additional code.
The paper you point to talks about something entirely different.
It think we're talking about two different things. You're talking
about the efficiency of make, whereas he's talking about the
efficiency of make. Um, wait.
You're talking about what I'll call the *internal* efficiency of make,
defined as how fast it does the things it does. He's talking about
what I'll call the *external* efficiency of make, which is how well it
does at doing the minimum amount of work it needs to do. I hope you
can see where the confusion comes from.
Yeah, from that you deleted the other two of my points in your response
where I talked about shells and external commands executed by make. You
cited the point where I asked for numbers on *internal* efficiency and
the point to a paper about *external* efficiency.
I've seen no numbers WHAT actually makes the ports stuff so slow. To
make my point a last time: until there are numbers, there is no guess
around what to do.
harti
_______________________________________________
freebsd-ports@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-ports
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
