Cisco MCS-7825-H3-IPC1 Service Guide - Page 220

Memory

Page 220 highlights

Performance Monitoring in RTMT Chapter 5 Cisco Unified Real-Time Monitoring Tool Tracing, PerfMon Counters, and Alerts Table 5-50 Counters Reasm Fails IP (continued) Reasm OKs Reasm Reqds Counter Descriptions This counter represents the number of IP reassembly failures that the IP reassembly algorithm detected, including time outs, errors, and so on. This counter does not represent the discarded IP fragments because some algorithms, such as the algorithm in RFC 815, can lose track of the number of fragments because it combines them as they are received. This counter represents the number of IP datagrams that were successfully reassembled. This counter represents the number of IP fragments that were received that required reassembly at this entity. Memory The memory object provides information about the usage of physical memory and swap memory on the server. Table 5-51 contains information on memory counters. Table 5-51 Memory Counters % Mem Used % Page Usage % VM Used Buffers KBytes Cached KBytes Free KBytes Free Swap KBytes Faults Per Sec Low Total Low Free Major Faults Per Sec Pages Counter Descriptions This counter displays the system physical memory utilization as a percentage. The value of this counter equals (Total KBytes - Free KBytes - Buffers KBytes Cached KBytes + Shared KBytes) / Total KBytes, which also corresponds to the Used KBytes/Total KBytes. This counter represents the percentage of active pages. This counter displays the system virtual memory utilization as a percentage. The value of this counter equals (Total KBytes - Free KBytes - Buffers KBytes Cached KBytes + Shared KBytes + Used Swap KBytes) / (Total KBytes + Total Swap KBytes), which also corresponds to Used VM KBytes/Total VM KBytes. This counter represents the capacity of buffers in your system in kilobytes. This counter represents the amount of cached memory in kilobytes. This counter represents the total amount of memory that is available in your system in kilobytes. This counter represents the amount of free swap space that is available in your system in kilobytes. This counter represents the number of page faults (both major and minor) that the system made per second (post 2.5 kernels only). This does not necessarily represent a count of page faults that generate I/O because some page faults can get resolved without I/O. This counter represents the total low (non-paged) memory for kernel. This counter represents the total free low (non-paged) memory for kernel. This counter represents the number of major faults that the system has made per second that have required loading a memory page from disk (post 2.5 kernels only). This counter represents the number of pages that the system paged in from the disk plus the number of pages that the system paged out to the disk. 5-66 Cisco Unified Communications Manager Managed Services Guide OL-22523-01

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5-66
Cisco Unified Communications Manager Managed Services Guide
OL-22523-01
Chapter 5
Cisco Unified Real-Time Monitoring Tool Tracing, PerfMon Counters, and Alerts
Performance Monitoring in RTMT
Memory
The memory object provides information about the usage of physical memory and swap memory on the
server.
Table 5-51
contains information on memory counters.
Reasm Fails
This counter represents the number of IP reassembly failures that the IP
reassembly algorithm detected, including time outs, errors, and so on. This
counter does not represent the discarded IP fragments because some algorithms,
such as the algorithm in RFC 815, can lose track of the number of fragments
because it combines them as they are received.
Reasm OKs
This counter represents the number of IP datagrams that were successfully
reassembled.
Reasm Reqds
This counter represents the number of IP fragments that were received that
required reassembly at this entity.
Table 5-50
IP (continued)
Counters
Counter Descriptions
Table 5-51
Memory
Counters
Counter Descriptions
% Mem Used
This counter displays the system physical memory utilization as a percentage. The
value of this counter equals (Total KBytes - Free KBytes - Buffers KBytes -
Cached KBytes + Shared KBytes) / Total KBytes, which also corresponds to the
Used KBytes/Total KBytes.
% Page Usage
This counter represents the percentage of active pages.
% VM Used
This counter displays the system virtual memory utilization as a percentage. The
value of this counter equals (Total KBytes - Free KBytes - Buffers KBytes -
Cached KBytes + Shared KBytes + Used Swap KBytes) / (Total KBytes + Total
Swap KBytes), which also corresponds to Used VM KBytes/Total VM KBytes.
Buffers KBytes
This counter represents the capacity of buffers in your system in kilobytes.
Cached KBytes
This counter represents the amount of cached memory in kilobytes.
Free KBytes
This counter represents the total amount of memory that is available in your
system in kilobytes.
Free Swap KBytes
This counter represents the amount of free swap space that is available in your
system in kilobytes.
Faults Per Sec
This counter represents the number of page faults (both major and minor) that the
system made per second (post 2.5 kernels only). This does not necessarily
represent a count of page faults that generate I/O because some page faults can get
resolved without I/O.
Low Total
This counter represents the total low (non-paged) memory for kernel.
Low Free
This counter represents the total free low (non-paged) memory for kernel.
Major Faults Per Sec
This counter represents the number of major faults that the system has made per
second that have required loading a memory page from disk (post 2.5 kernels
only).
Pages
This counter represents the number of pages that the system paged in from the
disk plus the number of pages that the system paged out to the disk.