Without this patch, Ruby doesn't show ractor's information when
there is only 1 ractor. However it is hard to read the log when
some ractors are created and terminated. This patch makes to keep
showing ractor's information on multi-ractor mode.
accessing theap needs complicating synchronization but it reduce
performance on multi-ractor mode. So simply stop using theap
on multi-ractor mode. In future, theap should be replaced with
more cleaver memory strategy.
ruby_multi_ractor was a flag that indicates the interpreter doesn't
make any additional ractors (single ractor mode).
Instead of boolean flag, ruby_single_main_ractor pointer is introduced
which keeps main ractor's pointer if single ractor mode. If additional
ractors are created, ruby_single_main_ractor becomes NULL.
Previously, rb_getaddrinfo_a_before_exec() is called from before_exec().
However, the function needs to be called only before fork().
The change moves it to before_fork().
Avoiding recursive call would imply iterating bits starting from
most significant, which is not easy to do efficiently.
Any saving would be dwarfed by the multiplications anyways.
[Feature #15233]
When running irb 1.2.1 (2019-12-24) with frozen-string-literal enabled, it crashes in reline with `can't modify frozen String (FrozenError)`
Steps to reproduce:
`RUBYOPT="--enable-frozen-string-literal" irb`
The rendering time in IRB has been reduced as follows:
start = Time.now
def each_top_level_statement
initialize_input
catch(:TERM_INPUT) do
loop do
begin
prompt
unless l = lex
throw :TERM_INPUT if @line == ''
else
@line_no += l.count("\n")
next if l == "\n"
@line.concat l
if @code_block_open or @ltype or @continue or @indent > 0
next
end
end
if @line != "\n"
@line.force_encoding(@io.encoding)
yield @line, @exp_line_no
end
break if @io.eof?
@line = ''
@exp_line_no = @line_no
@indent = 0
rescue TerminateLineInput
initialize_input
prompt
end
end
end
end
puts "Duration: #{Time.now - start} seconds"
0.33sec -> 0.22sec
https://github.com/ruby/reline/commit/496c6a1892
The rendering time in IRB has been reduced as follows:
start = Time.now
[{"_id"=>"5f9072a4589a06d2d74b6028",
"index"=>0,
"guid"=>"6b3051e2-dbc7-4537-bdb9-6cd7bb5358a7",
"isActive"=>true,
"balance"=>"$1,442.84",
"picture"=>"http://placehold.it/32x32",
"age"=>34,
"eyeColor"=>"blue",
"name"=>{"first"=>"Ward", "last"=>"Levy"},
"company"=>"HYPLEX",
"email"=>"ward.levy@hyplex.us",
"phone"=>"+1 (867) 568-3319",
"address"=>"867 Cobek Court, Clara, Maryland, 3254",
"about"=>
"Exercitation eu ex aliqua sit. Pariatur aliquip incididunt sint id non consectetur ullamco Lorem ea mollit duis amet sint labore. Commodo laborum labore commodo officia in cillum adipisicing esse excepteur cupidatat adipisicing ut. Non esse incididunt voluptate aliquip cillum eu aute duis laboris sit et. Amet enim quis tempor occaecat excepteur exercitation excepteur deserunt amet cillum adipisicing.",
"registered"=>"Monday, May 25, 2015 6:51 AM",
"latitude"=>"16.001127",
"longitude"=>"-72.377848",
"tags"=>["dolore", "nostrud", "occaecat", "cillum", "nisi"],
"range"=>[0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
"friends"=>
[{"id"=>0, "name"=>"Alison Bryant"},
{"id"=>1, "name"=>"Ester Espinoza"},
{"id"=>2, "name"=>"Sullivan Kane"}],
"greeting"=>"Hello, Ward! You have 7 unread messages.",
"favoriteFruit"=>"apple"}]
puts "Duration: #{Time.now - start} seconds"
0.47sec -> 0.34sec
start = Time.now
"Exercitation eu ex aliqua sit. Pariatur aliquip incididunt sint id non consectetur ullamco Lorem ea mollit duis amet sint labore. Commodo laborum labore commodo officia in cillum adipisicing esse excepteur cupidatat adipisicing ut. Non esse incididunt voluptate aliquip cillum eu aute duis laboris sit et. Amet enim quis tempor occaecat excepteur exercitation excepteur deserunt amet cillum adipisicing."
puts "Duration: #{Time.now - start} seconds"
0.11sec -> 0.08sec
start = Time.now
def each_top_level_statement
initialize_input
catch(:TERM_INPUT) do
loop do
begin
prompt
unless l = lex
throw :TERM_INPUT if @line == ''
else
@line_no += l.count("\n")
next if l == "\n"
@line.concat l
if @code_block_open or @ltype or @continue or @indent > 0
next
end
end
if @line != "\n"
@line.force_encoding(@io.encoding)
yield @line, @exp_line_no
end
break if @io.eof?
@line = ''
@exp_line_no = @line_no
@indent = 0
rescue TerminateLineInput
initialize_input
prompt
end
end
end
end
puts "Duration: #{Time.now - start} seconds"
0.40sec -> 0.33sec
Co-authored-by: NARUSE, Yui <naruse@airemix.jp>
https://github.com/ruby/reline/commit/a9e39ddcc4
The rendering time in IRB has been reduced as follows:
start = Time.now
[{"_id"=>"5f9072a4589a06d2d74b6028",
"index"=>0,
"guid"=>"6b3051e2-dbc7-4537-bdb9-6cd7bb5358a7",
"isActive"=>true,
"balance"=>"$1,442.84",
"picture"=>"http://placehold.it/32x32",
"age"=>34,
"eyeColor"=>"blue",
"name"=>{"first"=>"Ward", "last"=>"Levy"},
"company"=>"HYPLEX",
"email"=>"ward.levy@hyplex.us",
"phone"=>"+1 (867) 568-3319",
"address"=>"867 Cobek Court, Clara, Maryland, 3254",
"about"=>
"Exercitation eu ex aliqua sit. Pariatur aliquip incididunt sint id non consectetur ullamco Lorem ea mollit duis amet sint labore. Commodo laborum labore commodo officia in cillum adipisicing esse excepteur cupidatat adipisicing ut. Non esse incididunt voluptate aliquip cillum eu aute duis laboris sit et. Amet enim quis tempor occaecat excepteur exercitation excepteur deserunt amet cillum adipisicing.",
"registered"=>"Monday, May 25, 2015 6:51 AM",
"latitude"=>"16.001127",
"longitude"=>"-72.377848",
"tags"=>["dolore", "nostrud", "occaecat", "cillum", "nisi"],
"range"=>[0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
"friends"=>
[{"id"=>0, "name"=>"Alison Bryant"},
{"id"=>1, "name"=>"Ester Espinoza"},
{"id"=>2, "name"=>"Sullivan Kane"}],
"greeting"=>"Hello, Ward! You have 7 unread messages.",
"favoriteFruit"=>"apple"}]
puts "Duration: #{Time.now - start} seconds"
0.73sec -> 0.43sec
start = Time.now
"Exercitation eu ex aliqua sit. Pariatur aliquip incididunt sint id non consectetur ullamco Lorem ea mollit duis amet sint labore. Commodo laborum labore commodo officia in cillum adipisicing esse excepteur cupidatat adipisicing ut. Non esse incididunt voluptate aliquip cillum eu aute duis laboris sit et. Amet enim quis tempor occaecat excepteur exercitation excepteur deserunt amet cillum adipisicing."
puts "Duration: #{Time.now - start} seconds"
0.15sec -> 0.10sec
start = Time.now
def each_top_level_statement
initialize_input
catch(:TERM_INPUT) do
loop do
begin
prompt
unless l = lex
throw :TERM_INPUT if @line == ''
else
@line_no += l.count("\n")
next if l == "\n"
@line.concat l
if @code_block_open or @ltype or @continue or @indent > 0
next
end
end
if @line != "\n"
@line.force_encoding(@io.encoding)
yield @line, @exp_line_no
end
break if @io.eof?
@line = ''
@exp_line_no = @line_no
@indent = 0
rescue TerminateLineInput
initialize_input
prompt
end
end
end
end
puts "Duration: #{Time.now - start} seconds"
0.59sec -> 0.38sec
Co-authored-by: NARUSE, Yui <naruse@airemix.jp>
https://github.com/ruby/reline/commit/36bc9e3abb