211 lines
6.8 KiB
Python
Executable File
211 lines
6.8 KiB
Python
Executable File
#!/usr/bin/env python3.5
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# You are free to use and/or change this code for
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# your own needs.
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# Original code (c)2018 Jan Lerking
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# Program to test various scenarios of
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# single thread, multi thread, pool and process
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import os
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import sys
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import multiprocessing as mp
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import time
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import io
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import cpuinfo
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import queue
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import threading
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import time
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import random
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import string
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import shutil
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cpu_info = cpuinfo.get_cpu_info()
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num_cores = mp.cpu_count()
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print(num_cores)
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filelist = []
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exitFlag = 0
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queueLock = threading.Lock()
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workQueue = queue.Queue(0)
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threads = []
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class myThread (threading.Thread):
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def __init__(self, threadID, name, q):
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threading.Thread.__init__(self)
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self.threadID = threadID
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self.name = name
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self.q = q
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def run(self):
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print ("Starting " + self.name)
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process_data(self.name, self.q)
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print ("Exiting " + self.name)
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def process_data(threadName, q):
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while not exitFlag:
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queueLock.acquire()
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if not workQueue.empty():
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data = q.get()
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process_file(data)
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queueLock.release()
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print ("%s processing %s" % (threadName, data))
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else:
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queueLock.release()
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time.sleep(1)
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def sourcedir_filecnt(sourcedir):
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### Return the number of files, ending with '.h', in sourcedir - including subdirectories ###
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cnt = 0
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global filelist
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for folderName, subfolders, files in os.walk(sourcedir):
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for file in files:
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if file.lower().endswith('.h'):
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cnt += 1
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filelist += [folderName+'/'+file]
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return cnt
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def process_files(sourcedir, destdir):
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global filelist
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for f in filelist:
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process_file(f)
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def process_file(data):
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outfile = ''
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inputfile = data
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encodings = ['utf-8', 'latin-1', 'windows-1250', 'windows-1252', 'ascii',
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'big5', 'big5hkscs', 'cp037', 'cp273', 'cp424', 'cp437', 'cp500',
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'cp720', 'cp737', 'cp775', 'cp850', 'cp852', 'cp855', 'cp856',
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'cp857', 'cp858', 'cp860', 'cp861', 'cp862', 'cp863', 'cp864', 'cp865',
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'cp866', 'cp869', 'cp874', 'cp875', 'cp932', 'cp949', 'cp950', 'cp1006',
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'cp1026', 'cp1125', 'cp1140', 'cp1250', 'cp1251', 'cp1252', 'cp1253', 'cp1254',
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'cp1255', 'cp1256', 'cp1257', 'cp1258', 'cp65001', 'euc-jp', 'euc-jis-2004',
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'euc-jisx0213', 'euc-kr', 'gb2312', 'gbk', 'gb18030', 'hz', 'iso2022-jp',
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'iso2022-jp-1', 'iso2022-jp-2', 'iso2022-jp-2004', 'iso2022-jp-3',
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'iso2022-jp-ext', 'iso2022-kr', 'iso8859-2', 'iso8859-3', 'iso8859-4',
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'iso8859-5', 'iso8859-6', 'iso8859-7', 'iso8859-8', 'iso8859-9', 'iso8859-10',
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'iso8859-11', 'iso8859-13', 'iso8859-14', 'iso8859-15', 'iso8859-16', 'johab',
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'koi8-r', 'koi8-t', 'koi8-u', 'kz1048', 'mac-cyrillic', 'mac-greek',
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'mac-iceland', 'mac-latin2', 'mac-roman', 'mac-turkish', 'ptcp154',
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'shift-jis', 'shift-jis-2004', 'shift-jisx0213', 'utf-32', 'utf-32-be',
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'utf-32-le', 'utf-16', 'utf-16-be', 'utf-16-le', 'utf-7', 'utf-8-sig']
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for e in encodings:
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try:
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fh = io.open(data, 'r', encoding=e)
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fh.readlines()
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fh.seek(0)
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except UnicodeDecodeError:
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print('got unicode error with %s , trying different encoding' % e)
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else:
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#print('opening the file with encoding: %s ' % e)
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break
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#print(os.path.basename(data))
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for lines in fh:
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outfile = outfile+lines
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fh.close()
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outputfile = os.path.splitext(inputfile)[0]+'.inc'
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outputfile = str(outputfile).replace(sourcedir, destdir)
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#print(outputfile)
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if not os.path.exists(os.path.dirname(outputfile)):
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try:
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os.makedirs(os.path.dirname(outputfile))
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except OSError as exc: # Guard against race condition
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if exc.errno != errno.EEXIST:
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raise
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newfile = open(outputfile, "w")
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newfile.write(outfile)
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newfile.close()
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def single_thread():
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t1 = time.time()
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cnt = sourcedir_filecnt(sourcedir)
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print('Files in: '+str(cnt))
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process_files(sourcedir, destdir)
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print('Single thread process time: '+str(time.time()-t1))
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def multi_thread():
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global filelist
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global exitFlag
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t1 = time.time()
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cnt = sourcedir_filecnt(sourcedir)
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threadList = ["thread 1", "thread 2", "thread 3", "thread 4", "thread 5"]
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nameList = filelist
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threadID = 0
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# Create new threads
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for tName in threadList:
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thread = myThread(threadID, tName, workQueue)
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thread.start()
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threads.append(thread)
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threadID += 1
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# Fill the queue
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queueLock.acquire()
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for word in nameList:
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workQueue.put(word)
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queueLock.release()
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# Wait for queue to empty
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while not workQueue.empty():
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pass
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# Notify threads it's time to exit
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exitFlag = 1
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# Wait for all threads to complete
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for t in threads:
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t.join()
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print ("Exiting Main Thread")
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print('Files in: '+str(cnt))
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print('Multi thread process time: '+str(time.time()-t1))
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def async_process(num):
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t1 = time.time()
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cnt = sourcedir_filecnt(sourcedir)
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pool = mp.Pool(processes=num)
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#[pool.apply_async(process_file, args=(f,)) for f in filelist]
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pool.map(process_file, filelist)
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#output = [p.get() for p in results]
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#print(output)
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# Setup a list of processes that we want to run
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#processes = [mp.Process(target=rand_string, args=(5, output)) for x in range(8)]
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#processes = [mp.Process(target=process_files, args=(sourcedir, destdir)) for x in range(num)]
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# Run processes
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#for p in processes:
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#p.start()
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# Exit the completed processes
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#for p in processes:
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#p.join()
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# Get process results from the output queue
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#results = [output.get() for p in processes]
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#print(results)
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print('Files in: '+str(cnt))
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print('Multi ('+str(num)+') processes time: '+str(time.time()-t1))
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def cleanup(dest):
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shutil.rmtree(dest)
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#sourcedir = 'C:/Users/dksojlg/Documents/gtk+-3.22.26'
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sourcedir = '/usr/include'
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#destdir = 'C:/Users/dksojlg/Documents/include'
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destdir = '/data_2/include'
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#print(cpu_info)
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#single_thread() #2543 files - Single thread process time: 1.3732633590698242 sec.
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#os.rmdir(destdir)
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#multi_thread() #2543 files - Syncronized 5 threads process time: 80.25179100036621 sec.
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#os.rmdir(destdir)
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async_process(16) #2543 files - 2 processes, process time: 1.2379400730133057 sec.
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#cleanup(destdir)
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#async_process(4) #2543 files - 2 processes, process time: 2.6622860431671143 sec.
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#cleanup(destdir)
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#async_process(6) #2543 files - 2 processes, process time: 2.6622860431671143 sec.
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#cleanup(destdir)
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#async_process(8) #2543 files - 2 processes, process time: 2.6622860431671143 sec.
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#cleanup(destdir)
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