Systems Management Empire MIB › Performance Group

Performance Group

Use the Performance group to track the health and performance of the host's operating system.

Class: kernelperf

The Performance group contains attributes that let you monitor the following statistics sampled over a fixed period of time:

Note: The sampling interval is system dependent.

• Length of scheduler's run queue (runQLen)
• Number of jobs waiting on disk I/O and page I/O (diskWaitNum, pageWaitNum)
• Number of active jobs that are swapped out and the number that are sleeping (swapActive, sleepActive)
• Total real kilobytes of memory in use and active real memory (memInUse, activeMem)
• Number of current processes and open files (numProcs, numOpenFiles)
• Amount of swap space in use (swapInUse)
• Number of context switches (numSwitches)
• Number of traps switching a process from user to kernel mode (numTraps)
• Number of system calls (numSyscalls)
• Number of device interrupts (numInterrupts)
• Number of pages or processes that have been swapped in or out (numPageSwapIns, numPageSwapOuts, numSwapIns, numSwapOuts
• Number of pages that have been paged in, paged, out, reclaimed, or faulted (numPageIn, numPageOut, numPageReclaims, numPageFaults)
• Number of jobs in the scheduler's run queue
• Load average over a specific interval (loadAverage1Min, loadAverage5Min, loadAverage15Min)
• Total swap space and capacity (totalSwapSpace, swapCapacity)
• Memory and active memory capacity (memCapacity, memInUseCapacity)
• Number of page scans and zombie processes (pageScans, numZombieProcs)
• Number of paging space ins and outs (numPagingSpaceIns, numPagingSpaceOuts)
• Total, free, and reserved paging space (totalPagingSpace, freePagingSpace, reservedPagingSpace)
• Memory in KB allocated to working segment pages (workUsedMem)
• Memory in KB allocated to persistent segment pages (persUsedMem)
• Memory in KB allocated to client segment pages (clntUsedMem)
• Percentage of memory allocated to computational page frames, which are backed by paging space. (compPercent)
• Percentage of memory allocated to non-computational frames, which are backed by file space, either data files, executable files, or shared library files. (noncompPercent)
• Number of virtual memory pages accessed recently, which are not paged out. (activeVirtualMem)

For detailed descriptions of these MIB objects, see the empire.asn1 file in the mib subdirectory of the agent distribution.