Attachment 5759 Details for Bug 33458

Threded event loop UVMM performance problem v2

33458_uvmm-performance.py (text/plain), 1.20 KB, created by Philipp Hahn on 2014-01-28 22:45 CET

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Creator: Philipp Hahn

Created: 2014-01-28 22:45 CET

Size: 1.20 KB

patch

obsolete

>#!/usr/bin/python
>import os
>os.environ["LIBVIRT_DEBUG"] = "1"
>import libvirt
>from time import sleep
>from threading import Thread
>
>URLS = [
>	"qemu://boksel.knut.univention.de/system",
>#	"qemu://isalla.knut.univention.de/system",
>#	"qemu://krus.knut.univention.de/system",
>#	"qemu://skepp.knut.univention.de/system",
>#	"qemu://utby.knut.univention.de/system",
>]
>
>
>def run(url):
>	print url,
>	try:
>		c = libvirt.open(url)
>	except libvirt.libvirtError as ex:
>		print ex
>	else:
>		print c
>
>
>def runEventLoop():
>	while True:
>		libvirt.virEventRunDefaultImpl()
>
>
>def openFiles():
>	for dirpath, dirnames, filenames in os.walk("/proc/self/fd"):
>		for filename in filenames:
>			filepath = os.path.join(dirpath, filename)
>			try:
>				link = os.readlink(filepath)
>			except OSError as ex:
>				link = ex
>			print "%s\t%s" % (filename, link)
>
>
>def main():
>	libvirt.virEventRegisterDefaultImpl()
>	loop = Thread(target=runEventLoop, name="libvirtEventLoop")
>	loop.setDaemon(True)
>	loop.start()
>
>	while True:
>		threads = [Thread(target=run, name=url, args=(url,)) for url in URLS]
>		for thread in threads:
>			thread.start()
>		sleep(5)
>		openFiles()
>		for thread in threads:
>			thread.join(.1)
>		break
>		sleep(5)
>
>if __name__ == '__main__':
>	main()

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Attachments on bug 33458: 5741 | 5759