php-cgi占用100%，有关问题很离谱
php-cgi占用100%，问题很离谱。
服务器：window2003 Microsoft-IIS/6.0 ，装了服务器安全狗。
网址：http://www.cits-sz.net，之前一直好好的
任务管理器里面“php-cgi”进程很多，但是问题还更离谱。
我让其他地方的人访问，cpu正常一直在百分之十几二十三十左右。
从昨天2015.3.18早上开始我们公司的访问一会能打开，一会打不开。今天来打不开网站，看了安全狗黑白名单没有，然后就把公司的ip添加到白名单，访问可以打开，但是一访问，cpu就100%，将公司ip从白名单称除，肯定就打不开了。其他地区的再访问，cpu就正常，是不是我们公司的网络有问题呢？该如何解决，我在想是不是需要到时把所有电脑断网，一台一台的测试看cpu的占用率？
fcgiext.ini修改为
QueueLength=1000
MaxInstances=80
ActivityTimeout=300
RequestTimeout=300
InstanceMaxRequests=300
EnvironmentVars=PHP_FCGI_MAX_REQUESTS:10000
temp临时文件夹也清除了。
------解决思路----------------------
window2003 + IIS 6 以 fastcgi 运行 php 时，应打 winfastcgi 补丁
IIS 6 的默认并发数是 20，如需修改请到微软官网下载扩展软件，具体做法见微软知识库
所以不能盲目的加大 fastcgi 工作池
只在本地局域网内出现网络阻塞现象，应考虑局域网内是否有 ARP 或 DoS 攻击源
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