Class: Intranet::System::LinuxStatsProvider

Inherits:
Object
  • Object
show all
Defined in:
lib/intranet/system/linux_stats_provider.rb

Overview

Provides system statistics for a Linux system.

Constant Summary collapse

STATS_REFRESH_DELAY_S =

The system statistics refresh delay, in seconds. Under Linux, it is not necessary to refresh statistics more frequently than 5s since this is the refresh rate of the load average.

5

Instance Method Summary collapse

Constructor Details

#initialize ⇒ LinuxStatsProvider

Initializes a new Linux statistics provider.



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# File 'lib/intranet/system/linux_stats_provider.rb', line 24

def initialize
  @stats = {
    hostname: Socket.gethostname,
    loadavg: nil,
    cpu: { model: cpu_model, nb_cores: nb_cores },
    ram: { total: ram_available },
    swaps: {},
    partitions: {}
  }
  @stats_date = Time.now - STATS_REFRESH_DELAY_S
end

Instance Method Details

#stats ⇒ Hash

Returns the latest system statistics. System statistics are updated if they are outdated.

Returns:



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# File 'lib/intranet/system/linux_stats_provider.rb', line 38

def stats
  now = Time.now
  if outdated?(now)
    @stats[:loadavg] = load_average
    @stats[:ram][:used] = ram_used
    @stats[:swaps] = swaps_usage
    @stats[:partitions] = partitions_usage
    @stats_date = now
  end
  @stats
end