diff --git a/examples/mandelbrot_tasks/mandelbrot.cpp b/examples/mandelbrot_tasks/mandelbrot.cpp
index 0b32b3a7..a01cfe43 100644
--- a/examples/mandelbrot_tasks/mandelbrot.cpp
+++ b/examples/mandelbrot_tasks/mandelbrot.cpp
@@ -140,7 +140,7 @@ int main(int argc, char *argv[]) {
     printf("[mandelbrot serial]:\t\t[%.3f] millon cycles\n", minSerial);
     writePPM(buf, width, height, "mandelbrot-serial.ppm");
 
-    printf("\t\t\t\t(%.2fx speedup from ISPC)\n", minSerial/minISPC);
+    printf("\t\t\t\t(%.2fx speedup from ISPC + tasks)\n", minSerial/minISPC);
 
     return 0;
 }
diff --git a/examples/perf.ini b/examples/perf.ini
new file mode 100755
index 00000000..3814bf16
--- /dev/null
+++ b/examples/perf.ini
@@ -0,0 +1,53 @@
+%****************************************************************************************************
+%Usage:
+%    Name of test
+%    Path to test from base folder (examples)
+%    command to execute test to compute performance
+%    [! X Y] //If one test has different output X is position of current output, Y is number of outputs
+%    [^] //concatenate output of this step with previous one
+%    #***
+%    [% comment]
+%****************************************************************************************************
+AOBench
+aobench
+ao 10 512 512
+#***
+Deferred Shading
+deferred
+deferred_shading data/pp1280x720.bin
+#***
+Mandelbrot Set
+mandelbrot
+mandelbrot
+#***
+Mandelbrot Set
+mandelbrot_tasks
+mandelbrot
+^
+#***
+Perlin Noise Function
+noise
+noise
+#***
+Binomial Options
+options
+options
+! 1 2
+#***
+Black-Scholes Options
+options
+options
+! 2 2
+#***
+Ray Tracer
+rt
+rt sponza
+#***
+3D Stencil
+stencil
+stencil
+#***
+Volume Rendering
+volume_rendering
+volume camera.dat density_highres.vol
+#***
diff --git a/examples/perf.py b/examples/perf.py
new file mode 100755
index 00000000..5620bbfb
--- /dev/null
+++ b/examples/perf.py
@@ -0,0 +1,223 @@
+#!/usr/bin/python
+# // Author: Filippov Ilia
+
+from optparse import OptionParser
+import sys
+import os
+import operator
+import time
+import glob
+import string
+
+def build_test():
+    global build_log
+    os.system("make clean >> "+build_log)
+    return os.system("make >> "+build_log+" 2>> "+build_log)
+
+def execute_test(command):
+    global perf_temp
+    r = 0
+    if os.path.exists(perf_temp):
+        os.remove(perf_temp)
+    for k in range(int(options.number)):
+        r = r + os.system(command)
+    return r
+
+#gathers all tests results and made an item test from answer structure
+def run_test(command, c1, c2, test):
+    global perf_temp
+    if build_test() != 0:
+        sys.stdout.write("ERROR: Compilation fails\n")
+        return
+    if execute_test(command) != 0:
+        sys.stdout.write("ERROR: Execution fails\n")
+        return
+    tasks = [] #list of results with tasks, it will be test[2]
+    ispc = [] #list of results without tasks, it will be test[1]
+    j = 1
+    for line in open(perf_temp): # we take test output
+        if "speedup" in line: # we are interested only in lines with speedup
+            if j == c1: # we are interested only in lines with c1 numbers
+                print line
+                line = line.expandtabs(0)
+                line = line.replace("("," ")
+                line = line.split(",")
+                for i in range(len(line)):
+                    subline = line[i].split(" ")
+                    number = float(subline[1][:-1])
+                    if "speedup from ISPC + tasks" in line[i]:
+                        tasks.append(number)
+                    else:
+                        ispc.append(number)
+                c1 = c1 + c2
+            j+=1
+    test[1] = test[1] + ispc
+    test[2] = test[2] + tasks
+
+
+def cpu_get():
+    p = open("/proc/stat", 'r')
+    cpu = p.readline()
+    p.close()
+    cpu = cpu.split(" ")
+    cpu_usage = (int(cpu[2]) + int(cpu[3]) + int(cpu[4]))
+    cpu_all = cpu_usage + int(cpu[5])
+    return [cpu_usage, cpu_all]
+
+#returns cpu_usage
+def cpu_check():
+    cpu1 = cpu_get()
+    time.sleep(1)
+    cpu2 = cpu_get()
+    cpu_percent = (float(cpu1[0] - cpu2[0])/float(cpu1[1] - cpu2[1]))*100
+    return cpu_percent
+
+#returns geomean of list
+def geomean(par):
+    temp = 1
+    l = len(par)
+    for i in range(l):
+        temp = temp * par[i]
+    temp = temp ** (1.0/l)
+    return round(temp, 2)
+
+#takes an answer struct and print it.
+#answer struct: list answer contains lists test
+#test[0] - name of test
+#test[1] - list of results without tasks
+#test[2] - list of results with tasks
+#test[1] or test[2] may be empty
+def print_answer(answer):
+    print "Name of test:\t\tISPC:\tISPC + tasks:"
+    max_t = [0,0]
+    diff_t = [0,0]
+    geomean_t = [0,0]
+    list_of_max = [[],[]]
+    for i in range(len(answer)):
+        for t in range(1,3):
+            if len(answer[i][t]) == 0:
+                max_t[t-1] = "n/a"
+                diff_t[t-1] = "n/a"
+            else:
+                list_of_max[t-1].append(max(answer[i][t]))
+                max_t[t-1] = str(max(answer[i][t]))
+                diff_t[t-1] = str(max(answer[i][t]) - min(answer[i][t]))
+        sys.stdout.write("%s:\n" % answer[i][0])
+        sys.stdout.write("\t\tmax:\t%s\t%s\n" % (max_t[0], max_t[1]))
+        sys.stdout.write("\t\tdiff:\t%s\t%s\n" % (diff_t[0], diff_t[1]))
+
+    geomean_t[0] = geomean(list_of_max[0])
+    geomean_t[1] = geomean(list_of_max[1])
+    sys.stdout.write("---------------------------------------------\n")
+    sys.stdout.write("Geomean:\t\t%s\t%s\n" % (geomean_t[0], geomean_t[1]))
+
+###Main###
+# parsing options
+parser = OptionParser()
+parser.add_option('-n', '--number', dest='number',
+    help='number of repeats', default="3")
+parser.add_option('-c', '--config', dest='config',
+    help='config file of tests', default="./perf.ini")
+parser.add_option('-p', '--path', dest='path',
+    help='path to examples directory', default="./")
+(options, args) = parser.parse_args()
+
+# save corrent path
+pwd = os.getcwd()
+pwd = pwd + os.sep
+
+# check if cpu usage is low now
+cpu1 = cpu_get()
+time.sleep(1)
+cpu2 = cpu_get()
+cpu_percent = (float(cpu1[0] - cpu2[0])/float(cpu1[1] - cpu2[1]))*100
+cpu_percent = cpu_check()
+if cpu_percent > 20:
+    sys.stdout.write("Warning: CPU Usage is very high.\n")
+    sys.stdout.write("Close other applications.\n")
+
+# check that required compiler exists
+PATH_dir = string.split(os.getenv("PATH"), os.pathsep)
+compiler_exists = False
+for counter in PATH_dir:
+    if os.path.exists(counter + os.sep + "ispc"):
+        compiler_exists = True
+    break
+if not compiler_exists:
+    sys.stderr.write("Fatal error: ISPC compiler not found.\n")
+    sys.stderr.write("Added path to ispc compiler to your PATH variable.\n")
+    sys.exit()
+
+# checks that config file exists
+path_config = os.path.normpath(options.config)
+if os.path.exists(path_config) == False:
+    sys.stderr.write("Fatal error: config file not found: %s.\n" % options.config) 
+    sys.stderr.write("Set path to your config file in --config.\n")
+    sys.exit()
+
+# read lines from config file except comments
+f = open(path_config, 'r')
+f_lines = f.readlines()
+f.close()
+lines =[]
+for i in range(len(f_lines)):
+    if f_lines[i][0] != "%":
+        lines.append(f_lines[i])
+length = len(lines)
+
+# prepare build.log and perf_temp files
+global build_log
+build_log = pwd + "build.log"
+if os.path.exists(build_log):
+    os.remove(build_log)
+global perf_temp
+perf_temp = pwd + "perf_temp"
+
+i = 0
+answer = []
+sys.stdout.write("Okey go go go!\n\n")
+# loop for all tests
+while i < length-2:
+    # we read name of test
+    sys.stdout.write("%s" % lines[i])
+    test = [lines[i][:-1],[],[]]
+    # read location of test
+    folder = lines[i+1]
+    folder = folder[:-1]
+    folder = os.path.normpath(options.path + os.sep + folder)
+    # check that test exists
+    if os.path.exists(folder) == False:
+        sys.stdout.write("Fatal error: Can't find test %s. Your path is: \"%s\".\n" % (lines[i][:-1], options.path))
+        sys.stdout.write("Change current location to /examples or set path to /examples in --path.\n")
+        exit(0)
+    os.chdir(folder)
+    # read parameters of test
+    command = lines[i+2]
+    command = command[:-1]
+    command = "./"+command + " >> " + perf_temp
+    # parsing config parameters
+    next_line = lines[i+3]
+    if next_line[0] == "!": # we should take only one part of test output
+        R = next_line.split(' ')
+        c1 = int(R[1]) #c1 is a number of string which we want to use in test output
+        c2 = int(R[2]) #c2 is total number of strings in test output
+        i = i+1
+    else:
+        c1 = 1
+        c2 = 1
+    next_line = lines[i+3]
+    if next_line[0] == "^":  #we should concatenate result of this test with previous one
+        run_test(command, c1, c2, answer[len(answer)-1])
+        i = i+1
+    else: #we run this test and append it's result to answer structure
+        run_test(command, c1, c2, test)
+        answer.append(test)
+    # preparing next loop iteration
+    os.chdir(pwd)
+    i+=4
+
+# delete temp file
+if os.path.exists(perf_temp):
+    os.remove(perf_temp)
+#print collected answer
+print_answer(answer)
diff --git a/examples/rt/rt.cpp b/examples/rt/rt.cpp
index 2a0722bc..48bcc423 100644
--- a/examples/rt/rt.cpp
+++ b/examples/rt/rt.cpp
@@ -259,7 +259,7 @@ int main(int argc, char *argv[]) {
     }
     printf("[rt serial]:\t\t\t[%.3f] million cycles for %d x %d image\n", 
            minTimeSerial, width, height);
-    printf("\t\t\t\t(%.2fx speedup from ISPC, %.2f from ISPC + tasks)\n", 
+    printf("\t\t\t\t(%.2fx speedup from ISPC, %.2fx speedup from ISPC + tasks)\n", 
            minTimeSerial / minTimeISPC, minTimeSerial / minTimeISPCtasks);
 
     writeImage(id, image, width, height, "rt-serial.ppm");
diff --git a/examples/stencil/stencil.cpp b/examples/stencil/stencil.cpp
index 05b39f7c..9d5b3ee6 100644
--- a/examples/stencil/stencil.cpp
+++ b/examples/stencil/stencil.cpp
@@ -132,7 +132,7 @@ int main() {
 
     printf("[stencil serial]:\t\t[%.3f] millon cycles\n", minTimeSerial);
 
-    printf("\t\t\t\t(%.2fx speedup from ISPC, %.2f from ISPC + tasks)\n", 
+    printf("\t\t\t\t(%.2fx speedup from ISPC, %.2fx speedup from ISPC + tasks)\n", 
            minTimeSerial / minTimeISPC, minTimeSerial / minTimeISPCTasks);
 
     // Check for agreement
diff --git a/examples/volume_rendering/volume.cpp b/examples/volume_rendering/volume.cpp
index 50b39d62..7d8b8e99 100644
--- a/examples/volume_rendering/volume.cpp
+++ b/examples/volume_rendering/volume.cpp
@@ -207,7 +207,7 @@ int main(int argc, char *argv[]) {
     printf("[volume serial]:\t\t[%.3f] millon cycles\n", minSerial);
     writePPM(image, width, height, "volume-serial.ppm");
 
-    printf("\t\t\t\t(%.2fx speedup from ISPC serial, %.2fx from ISPC+tasks)\n", 
+    printf("\t\t\t\t(%.2fx speedup from ISPC, %.2fx speedup from ISPC + tasks)\n", 
            minSerial/minISPC, minSerial / minISPCtasks);
 
     return 0;