Messages in this thread | | | From | Daniel Hazelton <> | Subject | Re: [RFC] LZO de/compression support - take 4 | Date | Mon, 28 May 2007 04:18:07 -0400 |
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Test code for this version (take 4) of the minimized LZO1X (from the liblzo v2) is complete.
I don't see a significant slow-down comparing the complete liblzo2 to this minimized code on my system (Pentium M 1.73GHz, 1GB Ram, Kubuntu Feisty (stock Kubuntu kernel)). Rather, I see the opposite. This *might* have been caused by the dynamic linking (or similar) so rather than rely on simply doing "time xxx" I actually put checks around the calls to the compress/decompress functions themselves.
('Tiny LZO' is what I call Nitins extremely small implementation of lzo1x_[de]compress)
Output of the provided "test" script: 10 run averages: 'Tiny LZO': Combined: 113.2 usec Compression: 77.4 usec Decompression: 35.8 usec 'liblzo2': Combined: 140.7 usec Compression: 94 usec Decompression: 46.7 usec
(The "Combined" average is the average time taken for a compress+decompress)
TODO: -Implement userspace version of likely/unlikely -Implement cpu_to_le16 so code functions on BE systems
DRH [unhandled content-type:application/x-tbz] | |