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Re: [mv] [mvasp] vs. [perl] - Large Speed Difference
****** message to minivend-users from Mike Heins <mikeh@minivend.com> ******
Quoting 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
>
Yes, there can be pipelining of file transfer. In most cases, it won't
make an appreciable difference; download time dwarfs the execution time.
The problem is that anything you do which might affect the
headers (i.e. you decide later in the page that the thing should
go to a different window-target, or you want to send a cookie, or
you want to redirect to a URL) cannot be accomplished after you send.
If you know that the above is not the case, and you want to achieve
pipelining, you can add send=1 to any tag and the buffers to date will
be sent.
--
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phone +1.513.523.7621 fax 7501 <mikeh@minivend.com>
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