15 lines
986 B
XML
15 lines
986 B
XML
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<chapter id="ljp.prog-guide.performance">
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<title>Performance & Scalability</title>
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<itemizedlist>
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<title>Performance & Scalability</title>
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<listitem><para>
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Large chunks of code should be preloaded in libraries. Code in BML pages is re-evaled on every request, so it should be small. If you need a lot of code, put it in a library and load it in cgi-bin/lj-bml-(init|local).pl
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</para></listitem>
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<listitem><para>
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Don't write temporary files to disk... all LJ code should be able to run on a cluster of web servers with no disk-based session persistence.
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</para></listitem>
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<listitem><para>
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If you're calling a function with a <literal>$dbarg</literal> parameter and you have both a <literal>$dbs</literal> and <literal>$dbh</literal> available, call the function with your <literal>$dbs</literal> ... otherwise the function and all its callees can't ever use the slave databases.
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</para></listitem>
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</itemizedlist>
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</chapter>
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