Henrik, It is very informative. Thanks, Khanh -----Original Message----- From: Henrik Nordstrom [mailto:henrik@xxxxxxxxxxxxxxxxxxx] Sent: Wednesday, October 18, 2006 6:19 PM To: Nguyen, Khanh, INFOT Cc: squid-users@xxxxxxxxxxxxxxx Subject: Re: epoll on squid 2.6.STABLE4-20061009 under linux ons 2006-10-18 klockan 14:33 -0400 skrev Nguyen, Khanh, INFOT: > I am quite fuzzle about how epoll get enabled and how can i disable it > or enable it at will. Maybe someone have some insight about epoll > could lend a hand. If your libc and kernel supports epoll then it gets enabled by default. If you want to insist on that epoll should be used then you can use the --enable-epoll configure option. If no epoll support is found with this option then configure will complain and abort with some instructions on how to add epoll support to your system, assuming the kernel supports epoll but your libc doesn't (any 2.6 kernel does). > 1. Does my squid actually use epoll when it says 'Using epoll for IO loop'? Yes. > 3. How can I disable epoll? and reenable it later on. I want to see > how much gain I get with epoll so I need some performance data when > epoll is disable. To enable/disable epoll you need to build a new binary without epoll support, using the --disable-epoll configure argument. Regards Henrik
