Cisco MCS-7825-H3-IPC1 Service Guide - Page 116

Chapter 3 Managing and Monitoring the Health of Cisco Unified Communications Manager Systems RTMT Monitoring of Cisco Unified CM System Health Virtual Memory Virtual memory consists of physical memory (RAM) and swap memory (Disk). The RTMT CPU and Memory window has system level memory usage information as the following: • Total-Total amount of physical memory • Free-Amount of free memory • Shared-Amount of shared memory used • Buffers-Amount of memory used for buffering purpose • Cached-Amount of cached memory • Used-Calculated as Total - Free - Buffers - Cached + Shared • Total Swap-Total amount of swap space • Used Swap-Amount of swap space in use on the system. • Free Swap-Amount of free swap space available on the system Note Using SOAP APIs, you can query memory information for the following perfmon counters: • Under Memory object-% Mem Used, % VM Used, Total Kbytes, Total Swap Kbytes, Total VM Kbytes, Used Kbytes, Used Swap Kbytes, Used VM Kbytes • Under Process object-VmSize, VmData, VmRSS, % Memory Usage Using SNMP, you can query the following perfmon counters: • Host Resource MIB-hrStorageSize, hrStorageUsed, hrStorageAllocationUnits, hrStorageDescr, hrStorageType, hrMemorySize Note You can download some historical information by using RTMT Trace Log Central. The Cisco AMC Service PerfMonLog is enabled by default. The Cisco AMC Service PerfMonLog is deprecated in Cisco Unified CM Release 6.0 because Cisco RIS Data Collector PerfMonLog was introduced. The Cisco RIS Data Collector PerfMonLog disabled by default in Cisco Unified CM Release 5.x and enabled by default in Cisco Unified CM Release 6.0. Note Perfmon Virtual Memory refers to Total (Physical + Swap) memory whereas Host Resource MIB Virtual Memory refers to Swap memory only. The RTMT Process window displays process level memory usage information as follows: • VmSize-Total virtual memory used by the process • VmRSS-Resident Set currently in physical memory used by the process including Code, Data and Stack • VmData-Virtual memory usage of heap by the process • Page Fault Count-Represents the number of major page faults that a process encountered that required the data to be loaded into physical memory Figure 3-5 shows RTMT Process window. You can sort VmSize by clicking on VmSize tab. Then you can identify which process consumes more memory. 3-16 Cisco Unified Communications Manager Managed Services Guide OL-22523-01