----- Original Message ----- From: "Mark Quitoriano" <[EMAIL PROTECTED]> To: "Philippine Linux Users Group Mailing List" <[EMAIL PROTECTED]> Sent: Thursday, November 18, 2004 12:30 PM Subject: [plug] linux uptime
> how can i change the uptime in linux? why do you want to change it? > i know there's a cheat that you > can put 500 days uptime in linux? in linux: uptime = jiffies / HZ where jiffies is an unsigned 32 bit variable and HZ (hertz) default value is 100... the maximum days for uptime is: uptime = (2^32 / 100) / 86400 seconds per day = 497.1027 days in order for you to reach greater than 500 days uptime.. you either: 1. change jiffies type from unsigned 32 bit to unsigned 64 bit or 2. change the HZ lower than 99.42 ( 2^32 / (500 * 86400) ) by default, you cant manipulate the uptime value of linux unless otherwise you hack your kernel to support it... fooler. -- Philippine Linux Users' Group (PLUG) Mailing List [EMAIL PROTECTED] (#PLUG @ irc.free.net.ph) Official Website: http://plug.linux.org.ph Searchable Archives: http://marc.free.net.ph . To leave, go to http://lists.q-linux.com/mailman/listinfo/plug . Are you a Linux newbie? To join the newbie list, go to http://lists.q-linux.com/mailman/listinfo/ph-linux-newbie
