Re: [mv] [mvasp] vs. [perl] - Large Speed Difference

[Barry Treahy <treahy@mmaz.com>]

******    message to minivend-users from Barry Treahy <treahy@mmaz.com>     ******

Mike, the execution time of MV may be the same, but beyond the users perception of
speed, wouldn't it still be faster based on total page load time to allow MV to start
sending data when it could rather than buffering it all?  Perhaps I'm missing
something, but with limited bandwidth connections, wouldn't it make more sense to allow
data to flow as ready to avoid choking the connection?

Has anyone ever tested this?  Again, I'm not speaking of MV execution time, but total
walk-clock time of the overall page load once MV takes it.  Seems like you might end up
with a time line that would provide overlapping and therefore better throughput
performance:

+.................. TOTAL ELAPSED TIME ........................+
+---------MV EXECUTION--------+====DOWNLOAD OF PAGE CONTENTS===+
+---------MV EXECUTION--------+
                +====DOWNLOAD OF PAGE CONTENTS===+

Just a thought FWIW

Barry

Mike Heins wrote:

> ******    message to minivend-users from Mike Heins <mikeh@minivend.com>     ******
>
> Quoting Lee Nelson (jld123@pobox.com):
> > ******    message to minivend-users from Lee Nelson <jld123@pobox.com>     ******
> >
> > Mike,
> >
> >   I've been working with the mvasp/perl tag speed problem a little
> > more and found that the [mvasp] tag is faster (3x) even with
> > $Document->hot(0).
>
> It isn't really faster. It just starts responding faster. The execution
> time is identical.
>
> Minivend builds a page and accumulates responses in a buffer. If you
> don't use the send=1 attribute in a tag, it will accumulate the entire
> page and send it all at once. If you use [mvasp] or cause MV to send
> the response with send=1 in a Minivend tag, then it will start the
> response before the entire page is run.
>
> >
> >   And with hot(1), the text appears at the beginning of the page,
> > just like it does with [perl].
> >
> >   So it seems that with hot(0), [mvasp] is three times faster
> > than [perl], while with hot(1), both forms are unusuable (for me)
> > becuase they write to wrong part of the document.
> >
>
> You need to send the response of the previous part by specifying
> the send=1 attribute. Then it will come out in the right order.
>
> --
> Internet Robotics, 131 Willow Lane, Floor 2, Oxford, OH  45056
> phone +1.513.523.7621 fax 7501 <mikeh@minivend.com>
>
> Research is what I'm doing when I don't know what I'm doing.
> -- Wernher Von Braun
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