![]() A dramatic increase in this counter value without a corresponding increase in system activity indicates a hardware problem. For current CPUs, use a threshold of 1500 interrupts per second. The number of interrupts per second, including the clock. Set the thresholds appropriately for your environment. If the run queue is constantly growing, it may indicate the need for a more powerful CPU or more CPUs. This should be as low as possible, but not more than 4 per processor. The number of processes waiting for run time. Use the highest threshold possible at all times. Time, in percentages, spent idle (this includes IO-wait time). If CPU waits IO is high, there may be problems with hard disk or problems with accessing NFS shares (if you use NFS). Time, in percentages, spent waiting for input/output (IO) operations. Time, in percentages, spent running system kernel code (system time). It depends on the programs that the user uses. This represents the time spent executing user code. Time, in percentages, spent running non-kernel code (user time, including nice time). To learn more, see Manage thresholds in SAM. The Red Hat Enterprise Linux (RHEL) 3 OS may cause issues with certain counters in this template: Component monitorsĬomponents without predetermined threshold values have guidance such as "Use the lowest threshold possible" or "use the highest threshold possible" to help you find a threshold appropriate for your application. To determine where Perl is installed, use the following command: which perl ![]() If Perl is installed in a location different from /usr/bin/perl, edit paths in the first line of the field ”script body” ( #!/usr/bin/perl) for component monitors, or create a symbolic link to Perl with ln command. SSH and Perl are installed on the target server. This template supports the SolarWinds Platform Agent for Linux. ![]() ![]() This SAM application monitor template assesses the CPU performance of Linux servers through the use of Perl scripts. ![]()
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