filtering datapoints over a specific quantile using tsd_client

gistfile1.rb

require 'tsd_client'
tsd = TSD::Client.new host: 'fibr'
quantile = 0.95
query    = metric: 'cache_error_errs',
           start:  Time.parse('2014/06/11-12:00:00'),
           rate:   true,
           tags:   {host: '*'}

results  = tsd.query(query).sort_by {|entry| entry[:value]}
boundary = results.fetch((quantile * results.size).ceil - 1)
results.each do |entry|
  p entry if entry[:value] >= boundary
end