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author | Eric Wong <e@80x24.org> | 2014-11-27 22:43:44 +0000 |
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committer | Eric Wong <e@80x24.org> | 2014-11-27 22:43:44 +0000 |
commit | ec8c095b9f6081ec1462db6c4392ab181bd6790e (patch) | |
tree | 19f7fa874624e35d165ee0937ada2b6140660e7e /t | |
parent | e0b53967d74362c28da16bc2ecfccfd00a00a523 (diff) | |
download | unicorn-ec8c095b9f6081ec1462db6c4392ab181bd6790e.tar.gz |
Replacing the Regexp argument to a rarely-called String#split with a literal String can save a little memory. The removed Regexp memsize is 469 bytes on Ruby 2.1: ObjectSpace.memsize_of(/,/) => 469 Is slightly smaller at 453 bytes on 2.2.0dev (r48474). These numbers do not include the 40-byte object overhead. Nevertheless, this is a waste for non-performance-critical code during the socket inheritance phase. A literal string has less overhead at 88 bytes: * 48 bytes for table entry in the frozen string table * 40 bytes for the object itself The downside of using a literal string for the String#split argument is a 40-byte string object gets allocated on every call, but this piece of code is only called once in a process lifetime.
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