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require 'logger'
require_relative 'gitlab_config'
require_relative 'gitlab_logger'
module GitlabMetrics
module System
# THREAD_CPUTIME is not supported on OS X
if Process.const_defined?(:CLOCK_THREAD_CPUTIME_ID)
def self.cpu_time
Process.
clock_gettime(Process::CLOCK_THREAD_CPUTIME_ID, :millisecond)
end
else
def self.cpu_time
Process.
clock_gettime(Process::CLOCK_PROCESS_CPUTIME_ID, :millisecond)
end
end
# Returns the current monotonic clock time in a given precision.
#
# Returns the time as a Fixnum.
def self.monotonic_time
Process.clock_gettime(Process::CLOCK_MONOTONIC, :millisecond)
end
end
def self.logger
$logger
end
# Measures the execution time of a block.
#
# Example:
#
# GitlabMetrics.measure(:find_by_username_duration) do
# User.find_by_username(some_username)
# end
#
# name - The name of the field to store the execution time in.
#
# Returns the value yielded by the supplied block.
def self.measure(name)
start_real = System.monotonic_time
start_cpu = System.cpu_time
retval = yield
real_time = System.monotonic_time - start_real
cpu_time = System.cpu_time - start_cpu
logger.debug("metrics: name=#{name.inspect} wall_time=#{real_time} cpu_time=#{cpu_time}")
retval
end
end
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