# File lib/sys/top.rb, line 19 def self.top(num=10, field='pctcpu') field = field.to_s if field.is_a?(Symbol) windows = /mswin|win32|dos|cygwin|mingw/i # Sort by pid on Windows by default if Config::CONFIG['host_os'].match(windows) && field == 'pctcpu' field = 'pid' end # Linux does not have a pctcpu field yet if Config::CONFIG['host_os'].match('linux') && field == 'pctcpu' field = 'pid' end Sys::ProcTable.ps.sort_by{ |obj| obj.send(field) || '' }[0..num-1] end