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Optimize UUID string decoding

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I realized, that 30% of the request time in our app is spent by
hydrating the uuid (We are using Doctrine and in this specific request
I was accidentally hydrating few thousands entities). Luckily, I
remembered the #160 and tried to do similar optimization for uuid
decoding. It resulted in 10-20% performance improvement.
This commit is contained in:
Martin Hujer
2017-03-26 18:22:10 +02:00
parent ff6ad53a00
commit 4eefce356d
1 changed files with 6 additions and 6 deletions
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src/Codec/StringCodec.php
+6 -6
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@@ -156,12 +156,12 @@ class StringCodec implements CodecInterface
protected function getFields(array $components)
{
return array(
'time_low' => sprintf('%08s', $components[0]),
'time_mid' => sprintf('%04s', $components[1]),
'time_hi_and_version' => sprintf('%04s', $components[2]),
'clock_seq_hi_and_reserved' => sprintf('%02s', substr($components[3], 0, 2)),
'clock_seq_low' => sprintf('%02s', substr($components[3], 2)),
'node' => sprintf('%012s', $components[4])
'time_low' => str_pad($components[0], 8, '0', STR_PAD_LEFT),
'time_mid' => str_pad($components[1], 4, '0', STR_PAD_LEFT),
'time_hi_and_version' => str_pad($components[2], 4, '0', STR_PAD_LEFT),
'clock_seq_hi_and_reserved' => str_pad(substr($components[3], 0, 2), 2, '0', STR_PAD_LEFT),
'clock_seq_low' => str_pad(substr($components[3], 2), 2, '0', STR_PAD_LEFT),
'node' => str_pad($components[4], 12, '0', STR_PAD_LEFT)
);
}
}