86 lines
1.9 KiB
Plaintext
86 lines
1.9 KiB
Plaintext
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-- Intro
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Some people have expressed opinions about how
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fast libb64's encoding and decoding routines
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are, as compared to some other BASE64 packages
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out there.
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This document shows the result of a short and sweet
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benchmark, which takes a large-ish file and
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encodes/decodes it a number of times.
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The winner is the executable that does this task the quickest.
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-- Platform
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The tests were all run on a Fujitsu-Siemens laptop,
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with a Pentium M processor running at 2GHz, with
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1GB of RAM, running Ubuntu 10.4.
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-- Packages
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The following BASE64 packages were used in this benchmark:
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- libb64-1.2 (libb64-base64)
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From libb64.sourceforge.net
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Size of executable: 18808 bytes
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Compiled with:
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CFLAGS += -O3
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BUFFERSIZE = 16777216
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- base64-1.5 (fourmilab-base64)
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From http://www.fourmilab.ch/webtools/base64/
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Size of executable: 20261 bytes
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Compiled with Default package settings
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- coreutils 7.4-2ubuntu2 (coreutils-base64)
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From http://www.gnu.org/software/coreutils/
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Size of executable: 38488 bytes
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Default binary distributed with Ubuntu 10.4
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-- Input File
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Using blender-2.49b-linux-glibc236-py25-i386.tar.bz2
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from http://www.blender.org/download/get-blender/
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Size: 18285329 bytes
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(approx. 18MB)
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-- Method
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Encode and Decode the Input file 50 times in a loop,
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using a simple shell script, and get the running time.
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-- Results
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$ time ./benchmark-libb64.sh
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real 0m28.389s
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user 0m14.077s
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sys 0m12.309s
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$ time ./benchmark-fourmilab.sh
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real 1m43.160s
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user 1m23.769s
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sys 0m8.737s
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$ time ./benchmark-coreutils.sh
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real 0m36.288s
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user 0m24.746s
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sys 0m8.181s
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28.389 for 18MB * 50
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= 28.389 for 900
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-- Conclusion
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libb64 is the fastest encoder/decoder, and
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has the smallest executable size.
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On average it will encode and decode at roughly 31.7MB/second.
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The closest "competitor" is base64 from GNU coreutils, which
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reaches only 24.8MB/second.
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--
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14/06/2010
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chris.venter@gmail.com
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