The supplied command sar it probably what you are after. If you are after the value since last boot, just fire it off without parameters. Depending on your installation, you may get hourly or 5 minute stats, but it is averaged at the end. This is usually controlled by the running of sa1, often by the cron table of user account adm.
The columns are usually %usr %sys %wio %idle, so it's up to you to decide if you want 100-%idle or if I/O wait should be considered.
If this answers what you need, great.
If you need average at the moment, you can supply a variety of parameters. You could have
... which gets the information from the last 1 second. You can stretch this by increasing the first value. You can vary it by increaing the second value to show you more samples, e.g.
... will report the usage over the last 3 seconds 5 times and then an average.
There are also reports generated by sa2, again usually by the cron table of adm. Read your manaul pages about sa2 for where this file is likely to be in your implementation if you have it enabled.
Trying to use awk to print the lines in file that have either REF or SNV in $3, add a header line, sort by $4 in numerical order. The below code does that already, but where I am stuck is on the last part where the total lines are counted and printed under Total_Targets, under Targets_less_than is... (4 Replies)
Let's say i have 20 users logged on Server. How can I know how much memory percent used each of them is using with system time in each user? (2 Replies)
hi, i am using solaris server. I want to find the total CPU usage on a server. Top command will give that result, but here that command is not working. So anyone can help me to find the total CPU usage. (2 Replies)
Hi,
I want to calculate the total cpu usage from the sar report. Say for example,
Linux 2.6.24-21-generic (blade10) 09/10/2012
04:54:36 PM CPU %user %nice %system %iowait %steal %idle
04:54:37 PM all 0.00 0.00 0.00 0.00 ... (1 Reply)
Hi all
Can anyone advise/confirm whether total CPU usage when running sar is %user+%system+%iowait or is it %user+%system only?
I want to confirm whether I am having a CPU-bound problem or not.
This is a single-CPU VMware machine.
$ sar 5 20
Linux 2.6.18-238.5.1.el5... (7 Replies)
Hi all,
Is it possible to get total memory usage and free memory usage without top? By Googling I found for total memory usage, use vmstat, for CPU, use mpstat, for disk I/O use iostat, is this correct? Will using sar gives the same result as ALL of these three (3) commands?
What about if I... (2 Replies)
Hi,
How can I find total CPU usage in percentage? e.g. if my system has 8 CPUs and I want to list total usage for all of them, is it possible through a command?
I have tried some of the commands like top, mpstat, sar. The output of those commands has to be manipulated to derive the percentage... (14 Replies)
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
hi,
AIX 5.3
For any command(say tar command) I am getting 100% busy for my hdisk.
But my CPU and Memory is not busy and have more idle also.
Please advice for any performance analysing.
Thanks in Advance, (3 Replies)