Thansk Amos, Is using epoll root@artica-postfix:~# squidclient -h 127.0.0.1 -p 56500 mgr:menu | grep comm_incoming stub time| WARNING: BCP 177 violation. Detected non-functional IPv6 loopback. comm_epoll_incoming comm_incoming() stats public -----Mensagem original----- De: squid-users <squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx> Em Nome De Amos Jeffries Enviada: 26 de janeiro de 2022 00:07 Para: squid-users@xxxxxxxxxxxxxxxxxxxxx Assunto: Re: [ext] Re: Absolute upper limit for filedescriptors in squid-6? On 26/01/22 12:14, André Bolinhas wrote: > Hi > I have a question regarding with this topic to, I need about 2M > filedescriptors so my squid is compiled with --enable-poll and > --enable-epoll. > In this case which mechanism Squid will use poll or epoll? Should be epoll. You can verify with the cachemgr API: squidclient mgr:menu | grep comm_incoming poll(2) has a "comm_poll_incoming" report, and epoll(2) a matching "comm_epoll_incoming" report. If you have neither, then your Squid is using one of the other modules. > Also, for better performance for large FD, which mechanism did you > recommend poll, epoll or kqueue? Recommended preference order for those is: epoll, kqueue, poll. FWIW; with features like this where they are already well-known and tested for years the build process and/or squid.conf defaults have usually been designed to take care of these decisions automatically. In this case, at most, you should only need to use ./configure options. Squid follow the auto-tools best practice: "--enable-foo" *requires* that foo dependencies etc all exist and be usable, else configure halts with an error. "--disable-foo" forces foo to be omitted from the build. not specifying anything will attempt to enable foo as best-effort. But with problems it will only log an error and leave 'foo' out of the build. Cheers Amos _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users