Forking will share data with the parent. It typically uses a copy on write mechanism. So unless you modify the data, it will be shared between the parent and all the children. It isn't shared like threads where there is a single copy of the data.
M. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Guy Watkins Sent: Monday, November 17, 2008 8:00 PM To: 'Half-Life dedicated Linux server mailing list' Subject: Re: [hlds_linux] Data exchange over crossed child process Ok, cool. So, why is -fork 5 better than running 5 separate servers? I thought there was a performance benefit, but I don't think you would get any with fork(). Threads share a data segment. I can see where this could help. Can also be a major headache! Guy } -----Original Message----- } From: [EMAIL PROTECTED] [mailto:hlds_linux- } [EMAIL PROTECTED] On Behalf Of Chris Green } Sent: Monday, November 17, 2008 10:34 PM } To: 'Half-Life dedicated Linux server mailing list' } Subject: Re: [hlds_linux] Data exchange over crossed child process } } L4d with -fork mode isn't using threads - it's using processes via the } fork() system call. } } } -----Original Message----- } From: [EMAIL PROTECTED] [mailto:hlds_linux- } [EMAIL PROTECTED] On Behalf Of Guy Watkins } Sent: Monday, November 17, 2008 7:25 PM } To: 'Half-Life dedicated Linux server mailing list' } Subject: Re: [hlds_linux] Data exchange over crossed child process } } I don't think threads are supported by mosix. I don't think you can use } mosix like you think. } } } -----Original Message----- } } From: [EMAIL PROTECTED] [mailto:hlds_linux- } } [EMAIL PROTECTED] On Behalf Of Chris Green } } Sent: Monday, November 17, 2008 7:36 PM } } To: 'Half-Life dedicated Linux server mailing list' } } Subject: Re: [hlds_linux] Data exchange over crossed child process } } } } I can't say I have tried it, but in theory, you should be able to run } one } } forked L4D server across a giant network of machines, including load } } balancing, including live migration of server instances across multiple } } machines, using mosix http://www.mosix.org/, which is pretty } interesting. } } } } } } -----Original Message----- } } From: [EMAIL PROTECTED] [mailto:hlds_linux- } } [EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] } } Sent: Monday, November 17, 2008 4:28 PM } } To: hlds_linux@list.valvesoftware.com } } Subject: [hlds_linux] Data exchange over crossed child process } } } } This is truly the next generation the game is going to turn. } } } } Imagine mods development, through campaigns editions constructed over } the } } childs, swapping players between childs processes, maybe voice } } communication through the childs processes ... } } The opportunites that this system may encourage will inscrease the game } } experience. } } } } Awesome ! } } } } } } -----Original Message----- } } } } Not sure exactly what you are asking, but yes, there is bidirectional } } communication between the parent process and all the children. } } It isn't used for much right now, but more info could be transmitted. } } Currently, } } } } - the parent can send concommands to all children } } - the parent sees the spew from all children } } - the parent sees occasional status updates from the children. This } } allows, for instance, a monitoring tool to show you how many people are } on } } your set of servers and what map they are playing by just connecting to } } one port and querying, instead of needing to connect to every running } } instance. Since some systems can run up to 40-50 instances at once, this } } is useful. } } } } } } -----Original Message----- } } } } From: hlds_linux-bounces at list.valvesoftware.com [mailto:hlds_linux- } } bounces at list.valvesoftware.com] On Behalf Of tech at cybergate02.com } } Sent: Monday, November 17, 2008 4:24 AM } } To: hlds_linux at list.valvesoftware.com } } Subject: [hlds_linux] Data exchange over crossed child process } } } } Well, the new source dedicated server as a new feature: fork command } line. } } } } May the engine permit data exchange between the childs processes } (telnet) } } ? } } This may be a revolution. } } } } _______________________________________________ } } To unsubscribe, edit your list preferences, or view the list archives, } } please visit: } } http://list.valvesoftware.com/mailman/listinfo/hlds_linux } } } } _______________________________________________ } } To unsubscribe, edit your list preferences, or view the list archives, } } please visit: } } http://list.valvesoftware.com/mailman/listinfo/hlds_linux } } } _______________________________________________ } To unsubscribe, edit your list preferences, or view the list archives, } please visit: } http://list.valvesoftware.com/mailman/listinfo/hlds_linux } } _______________________________________________ } To unsubscribe, edit your list preferences, or view the list archives, } please visit: } http://list.valvesoftware.com/mailman/listinfo/hlds_linux _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds_linux _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds_linux
