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57 lines
2.9 KiB
Plaintext
57 lines
2.9 KiB
Plaintext
The following are examples of rb_flowtime.d.
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This is a simple script to trace the flow of Ruby methods.
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Here it traces the example program, Code/Ruby/func_abc.rb
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# rb_flowtime.d
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C TIME(us) FILE DELTA(us) -- CLASS::METHOD
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0 3066547402640 func_abc.rb 2 -> Module::method_added
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0 3066547402662 func_abc.rb 22 <- Module::method_added
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0 3066547402683 func_abc.rb 20 -> Module::method_added
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0 3066547402693 func_abc.rb 9 <- Module::method_added
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0 3066547402707 func_abc.rb 14 -> Module::method_added
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0 3066547402716 func_abc.rb 9 <- Module::method_added
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0 3066547402729 func_abc.rb 12 -> Object::func_a
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0 3066547402740 func_abc.rb 10 -> Object::print
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0 3066547402759 func_abc.rb 18 -> IO::write
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0 3066547402860 func_abc.rb 101 <- IO::write
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0 3066547402871 func_abc.rb 10 <- Object::print
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0 3066547402881 func_abc.rb 10 -> Object::sleep
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0 3066548410630 func_abc.rb 1007749 <- Object::sleep
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0 3066548410660 func_abc.rb 30 -> Object::func_b
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0 3066548410679 func_abc.rb 18 -> Object::print
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0 3066548410689 func_abc.rb 10 -> IO::write
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0 3066548410730 func_abc.rb 40 <- IO::write
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0 3066548410740 func_abc.rb 9 <- Object::print
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0 3066548410749 func_abc.rb 9 -> Object::sleep
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0 3066549420724 func_abc.rb 1009974 <- Object::sleep
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0 3066549420755 func_abc.rb 30 -> Object::func_c
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0 3066549420773 func_abc.rb 18 -> Object::print
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0 3066549420783 func_abc.rb 10 -> IO::write
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0 3066549420825 func_abc.rb 41 <- IO::write
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0 3066549420835 func_abc.rb 9 <- Object::print
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0 3066549420844 func_abc.rb 9 -> Object::sleep
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0 3066550430611 func_abc.rb 1009766 <- Object::sleep
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0 3066550430635 func_abc.rb 24 <- Object::func_c
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0 3066550430645 func_abc.rb 10 <- Object::func_b
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0 3066550430655 func_abc.rb 9 <- Object::func_a
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^C
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The fifth column is indented by 2 spaces to show when a new method begins.
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This shows which method is calling which.
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The TIME(us) column shows time since boot.
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The DELTA(us) column shows time from that line to the previous line, and
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so can be a bit tricky to read. For example, the seventh line of data output
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(skipping the header) reads as "the time from func_a beginning to
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calling the print method was 10 microseconds".
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The FILE column shows file that was being executed.
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If the output looks shuffled, check the CPU "C" and "TIME" columns, and
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post sort based on TIME if necessary.
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See Notes/ALLflow_notes.txt for important notes about reading flow outputs.
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