mahlon@martini.nu
c0cd35e260
- Complete first round of documentation. - Complete first round of tests and coverage. - Expand the thread benchmarker for testing metasync. - Add enumerators (each_key/each_value/each_pair) using cursors. - Remove keys() implementation in favor of using the emumerable. - Make deserialization more DRY. - Add an efficient length() method. - Add various Hash-alike methods. - General code cleanup for release. FossilOrigin-Name: 0d2bd3995f203c9ac1734ac3da32dd2f09efda9a394e554e6006e44dd07a33b0
81 lines
1.4 KiB
Ruby
Executable file
81 lines
1.4 KiB
Ruby
Executable file
#!/usr/bin/env ruby
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#
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require 'mdbx'
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require 'benchmark'
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require 'fileutils'
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include FileUtils
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at_exit do
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rm_r 'tmpdb'
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end
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THREAD_COUNT = 10
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WRITES_PER = 1000
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puts "#{THREAD_COUNT} simultaneous threads, #{WRITES_PER} writes each:"
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def run_bench( db, msg )
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mtx = Mutex.new
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Benchmark.bm( 10 ) do |x|
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puts msg
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puts '-' * 60
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x.report( " txn per write:" ) do
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threads = []
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THREAD_COUNT.times do |i|
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threads << Thread.new do
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mtx.synchronize do
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WRITES_PER.times do
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key = "%02d-%d" % [ i, rand(1000) ]
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db[ key ] = rand(1000)
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end
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end
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end
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end
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threads.map( &:join )
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end
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# Long running transactions require a mutex across threads.
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#
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x.report( "txn per thread:" ) do
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threads = []
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THREAD_COUNT.times do |i|
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threads << Thread.new do
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mtx.synchronize do
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db.transaction do
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WRITES_PER.times do
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key = "%02d-%d" % [ i, rand(1000) ]
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db[ key ] = rand(1000)
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end
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end
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end
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end
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end
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threads.map( &:join )
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end
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x.report( " unthreaded:" ) do
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db.transaction do
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( THREAD_COUNT * WRITES_PER ).times do
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key = "000-%d" % [ rand(1000) ]
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db[ key ] = rand(1000)
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end
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end
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end
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end
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db.close
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puts
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end
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db = MDBX::Database.open( 'tmpdb' )
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run_bench( db, "Default database flags:" )
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db = MDBX::Database.open( 'tmpdb', no_metasync: true )
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run_bench( db, "Disabled metasync:" )
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