关于监控网页白屏时间所遇到的问题

标签：了解   $0   是的   exec   rom   argument   san   dev   rip   

from selenium import webdriver
source = "https://www.baidu.com"
chrome_options = webdriver.ChromeOptions()
chrome_options.add_argument(‘--headless‘)
chrome_options.add_argument(‘--disable-gpu‘)
chrome_options.add_argument(‘--disable-dev-shm-usage‘)
chrome_options.add_argument(‘--no-sandbox‘)
driver = webdriver.Chrome(chrome_options=chrome_options,executable_path="/usr/local/bin/chromedriver")
driver.get(source)
navigationStart = driver.execute_script("return window.performance.timing.navigationStart")
responseStart = driver.execute_script("return window.performance.timing.responseStart")
domComplete = driver.execute_script("return window.performance.timing.domComplete")
blanktime = responseStart - navigationStart
print("Back End:%s" % blanktime)
driver.quit()

在使用的过程中，可能还会遇到一个
“selenium.common.exceptions.WebDriverException: Message: unknown error: DevToolsActivePort file doesn‘t exist” 或者 “The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.”
这两个问题要看下 /opt/google/chrome/google-chrome 的末尾是不是：
exec -a "$0" "$HERE/chrome" "$@"

如果不是的话，请修改为这样的。 that‘s all

关于监控网页白屏时间所遇到的问题

标签：了解   $0   是的   exec   rom   argument   san   dev   rip   

原文地址：http://blog.51cto.com/13766835/2347546