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-rw-r--r--utils/srandmember/showdist.rb33
1 files changed, 33 insertions, 0 deletions
diff --git a/utils/srandmember/showdist.rb b/utils/srandmember/showdist.rb
new file mode 100644
index 0000000..2435857
--- /dev/null
+++ b/utils/srandmember/showdist.rb
@@ -0,0 +1,33 @@
+require 'redis'
+
+r = Redis.new
+r.select(9)
+r.del("myset");
+r.sadd("myset",(0..999).to_a)
+freq = {}
+100.times {
+ res = r.pipelined {
+ 1000.times {
+ r.srandmember("myset")
+ }
+ }
+ res.each{|ele|
+ freq[ele] = 0 if freq[ele] == nil
+ freq[ele] += 1
+ }
+}
+
+# Convert into frequency distribution
+dist = {}
+freq.each{|item,count|
+ dist[count] = 0 if dist[count] == nil
+ dist[count] += 1
+}
+
+min = dist.keys.min
+max = dist.keys.max
+(min..max).each{|x|
+ count = dist[x]
+ count = 0 if count == nil
+ puts "#{x} -> #{"*"*count}"
+}