patch 4.0

unittest/sql/optimizer/cost_model_utils/apply_array_model.py

@@ -0,0 +1,88 @@
+#!/bin/env python
+__author__ = 'dongyun.zdy'
+import getopt
+import sys
+import math
+
+
+
+def array_model_form(args,
+                     params):
+    Nelem = args
+
+    (
+        Telem_ence,
+        Telem_copy
+    ) = params
+
+    ELEM_PER_PAGE = 1024
+    extend_cnt = math.ceil(math.log(float(Nelem)/ELEM_PER_PAGE, 2))
+    if extend_cnt < 0:
+        extend_cnt = 0
+    copy_cnt = ELEM_PER_PAGE * (math.pow(2, extend_cnt) - 1)
+
+    total_cost = Telem_ence * Nelem
+    #total_cost += Tmem_alloc * extend_cnt
+    total_cost += Telem_copy * copy_cnt
+
+    return total_cost
+
+
+def extract_info_from_line(line):
+    splited = line.split(",")
+    line_info = []
+    for item in splited:
+        line_info.append(float(item))
+    return line_info
+
+
+file_name = "get_total.data.prep"
+output_fit_res = False
+wrong_arg = False
+opts,args = getopt.getopt(sys.argv[1:],"i:o:m:")
+for op, value in opts:
+    if "-i" == op:
+        file_name = value
+    elif "-o" == op:
+        output_fit_res = True
+        out_file_name = value
+    elif "-m" == op:
+        model_file_name = value
+    else:
+        wrong_arg = True
+
+if wrong_arg:
+    print "wrong arg"
+    sys.exit(1)
+
+input_file = open(file_name, "r")
+model_file = open(model_file_name, "r")
+out_file = open(out_file_name, "w")
+
+
+line = model_file.readline()
+model_params = [float(p) for p in line.split(",")]
+
+
+
+for line in input_file:
+    if line.startswith('#'):
+        out_file.write(line)
+        continue
+    case_param = extract_info_from_line(line)
+    args = (case_param[0])
+    time = case_param[1]
+    cost_val = array_model_form(args, model_params)
+    percent = (cost_val - time) / time
+
+    # new_line = ",".join([line.strip(),"\t" ,str(cost_val),"\t" , str(time),"\t\t" , str(percent * 100)])
+    # new_line += "\n"
+    # out_file.write(new_line)
+
+    new_line = ",".join([line.strip(), str(cost_val)])
+    new_line += "\n"
+    out_file.write(new_line)
+
+out_file.close()
+
+