Log and benchmark the workings of a single block and silence whatever logging that may have happened inside it (unless use_silence is set to false).
The benchmark is only recorded if the current level of the logger matches the log_level, which makes it easy to include benchmarking statements in production software that will remain inexpensive because the benchmark will only be conducted if the log level is low enough.
# File lib/action_controller/benchmarking.rb, line 23 def benchmark(title, log_level = Logger::DEBUG, use_silence = true) if logger && logger.level == log_level result = nil ms = Benchmark.ms { result = use_silence ? silence { yield } : yield } logger.add(log_level, "#{title} (#{('%.1f' % ms)}ms)") result else yield end end
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