[rrd-users] CPU usage RRD-DS Please help

Hi all.
I want to display CPU usage graph(perl script+rrdtool)
1. 6h
2. 1day
3.1week.
4. 1 month
5. 1 year.
I want to collect data from /proc/stat.
I am using these command
my $usr = `cat /proc/stat | grep "cpu" --max-count=1 |cut -d" " -f3|cut -d"
" -f2 |sed 's/ //g'`;
my $nice = `cat /proc/stat | grep "cpu" --max-count=1 |cut -d" " -f4|cut -d"
" -f3 |sed 's/ //g'`;
my $sys = `cat /proc/stat | grep "cpu" --max-count=1 |cut -d" " -f5|cut -d"
" -f4|sed 's/ //g'`;
my $idle = `cat /proc/stat | grep "cpu" --max-count=1 |cut -d" " -f6|cut -d"
" -f5|sed 's/ //g'`;
and update command is as follows
RRDs::update "$rrd/cpu.rrd",
"-t", "cpuusr:cpunic:cpusys:cpuidl",
"N:$usr:$nice:$sys:$idle";
So please help me to design the correct rrd . what DS I should used COUNTER
or GAUGE?
I want to update the database every 1 minute using etc/crontab.
Thanks in advance.
with regards

suhas


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