Files
deduplicator/rakelib/benchmark.rake
2025-07-19 11:33:52 +00:00

103 lines
3.1 KiB
Ruby
Raw Permalink Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
require 'tempfile'
require 'fileutils'
require 'securerandom'
namespace :benchmark do
file 'target/release/deduplicator' do
sh "cargo build --release"
end
task :few_large_files => 'target/release/deduplicator' do
# Benchmark 1: ./target/release/deduplicator bench_artifacts
# Time (mean ± σ): 2.5 ms ± 0.6 ms [User: 2.4 ms, System: 4.8 ms]
# Range (min … max): 1.8 ms … 9.7 ms 1474 runs
root = "bench_artifacts"
FileUtils.rm_rf(root)
Dir.mkdir(root)
# files with same size
puts "generating files of same size ..."
2.times.map do |i|
File.open(File.join(root, "file_#{i}_fwss.bin"), 'wb') do |f|
f.write(SecureRandom.bytes(4096 * 100_000))
end
end
# files with different sizes
puts "generating files of different sizes ..."
2.times.map do |i|
File.open(File.join(root, "file_#{i}_fwds.bin"), 'wb') do |f|
f.write(SecureRandom.bytes(4096 * (rand * 100_000).ceil))
end
end
# files with same content & size
puts "generating files of same content and sizes ..."
2.times.each do |i|
File.open(File.join(root, "file_#{i}_fwscas.bin"), 'wb') do |f|
f.write("\0" * (4096 * 100_000))
end
end
# files with different content but same size
puts "generating files of different content but same sizes ..."
2.times.each do |i|
File.open(File.join(root, "file_#{i}_fwdcbss.bin"), 'wb') do |f|
f.write(SecureRandom.bytes(4096 * 100_000))
end
end
sh("hyperfine -N --warmup 80 './target/release/deduplicator #{root}'")
sh("dust '#{root}'")
FileUtils.rm_rf(root)
end
task :many_small_files => 'target/release/deduplicator' do
# Benchmark 1: ./target/release/deduplicator bench_artifacts
# Time (mean ± σ): 10.6 ms ± 1.0 ms [User: 20.0 ms, System: 22.5 ms]
# Range (min … max): 8.4 ms … 14.2 ms 235 runs
root = "bench_artifacts"
Dir.mkdir(root)
# files with same size
puts "generating 1000 files of the same size ... "
1000.times.each do |i|
File.open(File.join(root, "file_#{i}_fwss.bin"), 'wb') do |f|
f.write(SecureRandom.bytes(4096 * 1000))
end
end
# files with different sizes
puts "generating 1000 files of different sizes ... "
1000.times.each do |i|
File.open(File.join(root, "file_#{i}_fwds.bin"), 'wb') do |f|
f.write(SecureRandom.bytes(4096 * (rand * 100).ceil))
end
end
# files with same content & size
puts "generating files of same content and sizes ..."
1000.times.each do |i|
File.open(File.join(root, "file_#{i}_fwscas.bin"), 'wb') do |f|
f.write("\0" * (4096 * 1000))
end
end
# files with different content but same size
puts "generating files of different content but same sizes ..."
1000.times.each do |i|
File.open(File.join(root, "file_#{i}_fwdcbss.bin"), 'wb') do |f|
f.write(SecureRandom.bytes(4096 * 1000))
end
end
sh("hyperfine --warmup 20 './target/release/deduplicator #{root}'")
sh("dust '#{root}'")
FileUtils.rm_rf(root)
end
end