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Re: including a package - time issue

by misc (Pilgrim)
on Aug 27, 2007 at 10:23 UTC ( #635265=note: print w/replies, xml ) Need Help??

in reply to including a package - time issue

You should probably have a look at modperl.
There's also a book available for free:

Modperl will compile your perl scripts only once, and answer all requests with the already compiled scripts.

To go more into the details:
It's hard to say what needs 3 seconds, without having more data/the code.
I could think of:
  • Perl needs some time to compile the packages
  • Perl needs so long in order to find the package
  • The database connection is established while requiring the packages, this could also take 3 seconds

However, all of the points above could be solved with modperl,
the database connection could also easily be made persistent.(Apache::DBI)

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[Corion]: Meh. SQL window functions would even make pagination easy/trivial (but not performant), as rank() over (partition by user order by timestamp) / 10 as page would give me a page number for each item, with 10 items per page.
[Corion]: Of course, the query performance for "all items on page 10" is likely worse than rank() between 100 and 109 , but if that means I can write 15 lines of SQL instead of needing to think about how to partition things and how to encode the page size...
[Corion]: ... that would be nice. But alas, I'm currently tied to SQLite as minimum implementation, and it doesn't implement window functions :-(

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