debian-mirror-gitlab/lib/gitlab/metrics/system.rb

69 lines
1.8 KiB
Ruby
Raw Normal View History

2019-02-15 15:39:39 +05:30
# frozen_string_literal: true
module Gitlab
module Metrics
# Module for gathering system/process statistics such as the memory usage.
#
# This module relies on the /proc filesystem being available. If /proc is
# not available the methods of this module will be stubbed.
module System
if File.exist?('/proc')
# Returns the current process' memory usage in bytes.
def self.memory_usage
mem = 0
match = File.read('/proc/self/status').match(/VmRSS:\s+(\d+)/)
2017-08-17 22:00:37 +05:30
if match && match[1]
mem = match[1].to_f * 1024
end
mem
end
def self.file_descriptor_count
Dir.glob('/proc/self/fd/*').length
end
2019-09-04 21:01:54 +05:30
def self.max_open_file_descriptors
match = File.read('/proc/self/limits').match(/Max open files\s*(\d+)/)
return unless match && match[1]
match[1].to_i
end
else
def self.memory_usage
0.0
end
def self.file_descriptor_count
0
end
2019-09-04 21:01:54 +05:30
def self.max_open_file_descriptors
0
end
end
2016-06-02 11:05:42 +05:30
2019-09-30 21:07:59 +05:30
def self.cpu_time
Process
.clock_gettime(Process::CLOCK_PROCESS_CPUTIME_ID, :float_second)
2016-06-02 11:05:42 +05:30
end
2016-08-24 12:49:21 +05:30
# Returns the current real time in a given precision.
#
2018-03-17 18:26:18 +05:30
# Returns the time as a Float for precision = :float_second.
def self.real_time(precision = :float_second)
2016-09-13 17:45:13 +05:30
Process.clock_gettime(Process::CLOCK_REALTIME, precision)
2016-08-24 12:49:21 +05:30
end
2018-03-17 18:26:18 +05:30
# Returns the current monotonic clock time as seconds with microseconds precision.
2016-08-24 12:49:21 +05:30
#
# Returns the time as a Float.
2018-03-17 18:26:18 +05:30
def self.monotonic_time
Process.clock_gettime(Process::CLOCK_MONOTONIC, :float_second)
2016-08-24 12:49:21 +05:30
end
end
end
end