benchmark redis sorted set using zadd

gistfile1.txt

r = Redis.connect(:url => 'redis://localhost:6379/2', :thread_safe => true)
k = 'livecount'
Benchmark.bm do |x|
  x.report do
    r.zrange(k,0,-1).count
  end
  x.report do
    r.zremrangebyscore(k, 0, Time.now.to_i)
  end
  x.report do
    (0..10000).each do |v|
      r.zadd(k, Time.now.to_i + 60, "#{v}") # keep for 1 min
    end
  end
end
r.zremrangebyscore(k, 0, Time.now.to_i)
r.zrange(k,0,-1).count