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Return time taken in milliseconds to process a block of code, along with its result.
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module Benchmark | |
# Similar to Benchmark.realtime, but returns the result of the block along with time taken in milliseconds. | |
# Ex: Benchmark.perform{ sleep(3); "hello" } => [3003.2030000002123, "hello"] | |
# | |
# Benchmark.realtime | https://ruby-doc.org/stdlib-2.5.0/libdoc/benchmark/rdoc/Benchmark.html#method-c-realtime | |
# Process.clock_gettime | http://ruby-doc.org/core-2.5.0/Process.html#method-c-clock_gettime | |
def self.perform | |
t0 = Process.clock_gettime(Process::CLOCK_MONOTONIC) | |
result = yield | |
[(Process.clock_gettime(Process::CLOCK_MONOTONIC) - t0) * 1000, result] | |
end | |
end |
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