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Date: Thu, 18 Sep 2008 17:23:58 +1000 From: Grant Coady <grant_lkml@...o.com.au> To: linux-kernel@...r.kernel.org Subject: Query: is there an official location for jiffies per second value? Hi there, I found I can get jiffies per second with this on one box: grant@...tree:~$ uname -r 2.6.26.5a grant@...tree:~$ awk 'FNR==NR{up=$1};/^jiffies:/{print up, $2, $2/up}' \ /proc/uptime /proc/timer_list 420389.04 126026727 299.786 But this value is very different on another box: grant@...h64:~$ uname -r 2.6.26.5a grant@...h64:~$ awk 'FNR==NR{up=$1}/^jiffies:/{print up, $2, $2/up}' \ /proc/uptime /proc/timer_list 73830.36 4317026409 58472.2 73830.36 4317026409 58472.2 Is there a reliable way to determine this jiffies value across different x86 boxes? The 'sysconf(_SC_CLK_TCK)' doesn't return the right answer either. It says 100Hz when it is 300Hz. Thanks, Grant. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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