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<TITLE>Sling less for speed</TITLE>
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<P>Slide 18 of 93</P>
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<H2>Sling less for speed</H2>
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<LI><H2>while(@row = $sth->fetchrow_array) {
}
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<LI>one field: 3,100 fetches per cpu second
<LI>ten fields: 1,000 fetches per cpu second
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<LI><H2>while($row = $sth->fetchrow_arrayref) {
}
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<LI>one field: 5,300 fetches per cpu second
<LI>ten fields: 4,000 fetches per cpu second
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<LI><H2>Notes:
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<LI>Timings made on an old SPARC 10 using DBD::Oracle
<LI>Timings assume instant record fetch within driver
<LI>Fields all just one char. @row would be even slower for more/bigger fields
<LI>Use bind_columns() for direct access to fetched fields without copying
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