System Counters
Cisco HAProxy
The HAProxy object offers proxy capabilities for HTTP-based applications. This object frontend all the incoming web traffic into Unified Communication Manager and IM and Presence Service.
HAProxy handles all the HTTP/HTTPS requests and provides improved Tomcat stability through offloading of crypto functionality.
The following table contains information about the HAProxy counters.
Counters |
Counter Description |
---|---|
TotalDeniedRequests |
The total number of denied requests since the process started. |
TotalDeniedResponse |
The total number of denied responses since the process started. |
Econ |
The total number of failed connections to the server since the process started. |
TimeInQueue |
The average time measured in milliseconds spent by the requests in the queue. This counter measure is averaged upto the last 1024 requests on the backend or server. |
TotalRequestAndResponseTime |
The total time spent for processing the agent requests and response time. It includes the request time, no. of connections in the queue, their response, and the total processing time. This counter measure is averaged upto the last 1024 requests on the backend or server. |
Cisco Tomcat Connector
The Tomcat Hypertext Transport Protocol (HTTP) and HTTP Secure (HTTPS) Connector object provides information about Tomcat connectors.
A Tomcat HTTP connector represents an endpoint that receives requests and sends responses. The connector handles HTTP/HTTPS requests and sends HTTP/HTTPS responses that occur when application web pages are accessed. The Secure Socket Layer (SSL) status of web application URLs provides the basis for the instance name for each Tomcat HTTP Connector. For example, https://<IP Address>:8443 for SSL or http://<IP Address>:8080 for non-SSL.
The following table contains information about the Tomcat HTTP connector counters.
Counters |
Counter Description |
---|---|
Errors |
The total number of HTTP errors (for example, |
MBytesReceived |
The amount of data that the connector received. |
MBytesSent |
The amount of data that the connector sent. |
Requests |
The total number of request that the connector handled. |
ThreadsTotal |
The current total number of request processing threads, including available and in-use threads, for the connector. |
ThreadsMax |
The maximum number of request processing threads for the connector. Each incoming request on a web application window requires a thread for the duration of that request. If more simultaneous requests are received than the currently available request processing threads can handle, additional threads are created up to the configured maximum shown in this counter. If still more simultaneous requests are received, they accumulate within the server socket that the connector created, up to an internally specified maximum number. Any further simultaneous requests receive connection refused messages until resources are available to process them. |
ThreadsBusy |
This counter represents the current number of busy/in-use request processing threads for the connector. |
Cisco Tomcat JVM
The Cisco Tomcat Java Virtual Machine (JVM) object provides information about the pool of common resource memory used by web applications such as Cisco Unified Communications Manager Administration, Cisco Unified Serviceability, and Cisco Unity Connection Administration. The dynamic memory block stores all objects that Tomcat and its web applications create.
The following table contains information about the Tomcat JVM counters.
Counters |
Counter Description |
---|---|
KBytesMemoryFree |
The amount of free dynamic memory block (heap memory) in the Tomcat Java Virtual Machine. When the amount of free dynamic memory is low, more memory is automatically allocated, and total memory size (represented by the KbytesMemoryTotal counter) increases but only up to the maximum (represented by the KbytesMemoryMax counter). You can determine the amount of memory in use by subtracting KBytesMemoryFree from KbytesMemoryTotal. |
KBytesMemoryMax |
The amount of free dynamic memory block (heap memory) in the Tomcat Java Virtual Machine. |
KBytesMemoryTotal |
The current total dynamic memory block size, including free and in-use memory, of Tomcat Java Virtual Machine. |
Cisco Tomcat Web Application
The Cisco Tomcat Web Application object provides information about how to run web applications.
The URLs for the web application provide the basis for the instance name for each Tomcat Web Application, as explained in the following examples:
-
Cisco Unified Communications Manager Administration (https://<IP Address>:8443/ccmadmin) is identified by ccmadmin.
-
Cisco Unified Serviceability (https://<IP Address>:8443/ccmservice) is identified by ccmservice.
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Cisco Unified Communications Manager User Options (https://<IP Address>:8443/ccmuser) is identified by ccmuser.
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Cisco Unity Connection Administration (https://<IP Address>:8443/cuadmin) is identified by cuadmin.
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URLs that do not have an extension, such as https://<IP Address>:8443 or http://<IP Address>:8080), are identified by _root.
The following table contains information on the Tomcat Web Application counters.
Counters |
Counter Description |
---|---|
Errors |
The total number of HTTP errors (for example, 401 Unauthorized) that a Unified Communications Manager-related or Cisco Unity Connection-related web application encounters. |
Requests |
The total number of requests that the web application handles. Each time that a web application is accessed, its Requests counter increments accordingly. |
SessionsActive |
The number of active or in use sessions in the web application. |
Cisco UDS Tomcat Connector
The UDS Tomcat Hypertext Transport Protocol (HTTP) and HTTP Secure (HTTPS) Connector object provides information about Tomcat connectors.
A UDS Tomcat HTTP connector represents an endpoint that receives requests and sends responses. The connector handles HTTP/HTTPS requests and sends HTTP/HTTPS responses that occur when application web pages are accessed. The Secure Socket Layer (SSL) status of web application URLs provides the basis for the instance name for each UDS Tomcat HTTP Connector. For example, https://<IP Address>:8443 for SSL or http://<IP Address>:8080 for non-SSL.
The following table contains information about the UDS Tomcat HTTP connector counters.
Counters |
Counter Description |
---|---|
Errors |
The total number of HTTP errors (for example, |
MBytesReceived |
The amount of data that the connector received. |
MBytesSent |
The amount of data that the connector sent. |
Requests |
The total number of request that the connector handled. |
ThreadsBusy |
This counter represents the current number of busy/in-use request processing threads for the connector. |
ThreadsTotal |
The current total number of request processing threads, including available and in-use threads, for the connector. |
ThreadsMax |
The maximum number of request processing threads for the connector. Each incoming request on a web application window requires a thread for the duration of that request. If more simultaneous requests are received than the currently available request processing threads can handle, additional threads are created up to the configured maximum shown in this counter. If still more simultaneous requests are received, they accumulate within the server socket that the connector created, up to an internally specified maximum number. Any further simultaneous requests receive connection refused messages until resources are available to process them. |
Cisco UDS Tomcat JVM
The Cisco UDS Tomcat Java Virtual Machine (JVM) object provides information about the UDS Tomcat JVM, which represents, among common things, a pool of common resource memory used by Cisco Unified Communications Manager-related web applications such as UDS, tomcatstats, and more.
The following table contains information about the UDS Tomcat JVM counters.
Counters |
Counter Description |
---|---|
KBytesMemoryFree |
The amount of free dynamic memory block (heap memory) in the UDS Tomcat Java Virtual Machine. When the amount of free dynamic memory is low, more memory is automatically allocated, and total memory size (represented by the KbytesMemoryTotal counter) increases but only up to the maximum (represented by the KbytesMemoryMax counter). You can determine the amount of memory in use by subtracting KBytesMemoryFree from KbytesMemoryTotal. |
KBytesMemoryMax |
The amount of free dynamic memory block (heap memory) in the UDS Tomcat Java Virtual Machine. |
KBytesMemoryTotal |
The current total dynamic memory block size, including free and in-use memory, of UDS Tomcat Java Virtual Machine. |
Cisco UDS Tomcat Web Application
The Cisco UDS Tomcat Web Application object provides information about how to run Unified Communications Manager web applications.
The URLs for the web application provide the basis for the instance name for each Tomcat Web Application, as explained in the following examples:
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Cisco Unified Communications Manager Administration (https://<IP Address>:8443/ccmadmin) is identified by ccmadmin.
-
Cisco Unified Serviceability (https://<IP Address>:8443/ccmservice) is identified by ccmservice.
-
Cisco Unified Communications Manager User Options (https://<IP Address>:8443/ccmuser) is identified by ccmuser.
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Cisco Unity Connection Administration (https://<IP Address>:8443/cuadmin) is identified by cuadmin.
-
URLs that do not have an extension, such as https://<IP Address>:8443 or http://<IP Address>:8080), are identified by _root.
The following table contains information on the UDS Tomcat Web Application counters.
Counters |
Counter Description |
---|---|
Errors |
The total number of HTTP errors (for example, 401 Unauthorized) that a Unified Communications Manager-related or Cisco Unity Connection-related web application encounters. |
Requests |
The total number of requests that the web application handles. Each time that a web application is accessed, its Requests counter increments accordingly. |
SessionsActive |
The number of active or in use sessions in the web application. |
Database Change Notification Client
The Database Change Notification Client object provides information about change notification clients. The following table contains information about the Database Change Notification Client counters.
Counters |
Counter Descriptions |
---|---|
MessagesProcessed |
The number of database change notifications that have been processed. This counter refreshes every 15 seconds. |
MessagesProcessing |
The number of change notification messages that are currently being processed or are waiting to be processed in the change notification queue for this client. This counter refreshes every 15 seconds. |
QueueHeadPointer |
The head pointer to the change notification queue. The head pointer acts as the starting point in the change notification queue. To determine the number of notifications in the queue, subtract the head pointer value from the tail pointer value. By default, this counter refreshes every 15 seconds. |
QueueMax |
The largest number of change notification messages that will be processed for this client. This counter remains cumulative since the last restart of the Cisco Database Layer Monitor service. |
QueueTailPointer |
The tail pointer to the change notification queue. The tail pointer represents the ending point in the change notification queue. To determine the number of notifications in the queue, subtract the head pointer value from the tail pointer value. By default, this counter refreshes every 15 seconds |
TablesSubscribed |
The number of tables in which this client has subscribed. |
Database Change Notification Server
The Database Change Notification Server object provides information about different change-notification-related statistics. The following table contains information about the Database Change Notification Server counters.
Counter |
Counter Descriptions |
---|---|
Clients |
The number of change notification clients (services and servlets) that have subscribed for change notification. |
CNProcessed |
The total number of change notification messages processed by the server since reboot. |
Queue Delay |
The number of seconds that the change notification process has messages to process but is not processing them. This condition is true if:
This condition is checked every 15 seconds. |
QueuedRequestsInDB |
The number of change notification records that are in the DBCNQueue (Database Change Notification Queue) table through direct TCP/IP connection (not queued in shared memory). This counter refreshes every 15 seconds. |
QueuedRequestsInMemory |
The number of change notification requests that are queued in shared memory. |
Database Change Notification Subscription
The Database Change Notification Subscription object displays the names of tables where the client receives Change Notifications.
The SubscribedTable object displays the table with the service or servlet that receives change notifications. Because the counter does not increment, this display occurs for informational purposes only.
Database Local DSN
The Database Local Data Source Name (DSN) object and LocalDSN counter provide the DSN information for the local machine. The following table contains information on the Database local DSN.
Counters |
Counter Descriptions |
---|---|
CcmDbSpace_Used |
The amount of Ccm DbSpace that is consumed |
CcmtempDbSpace_Used |
The amount of Ccmtemp DbSpace that is consumed. |
CNDbSpace_Used |
The percentage of CN DbSpace that is consumed. |
LocalDSN |
The DSN that is being referenced from the local machine. |
SharedMemory_Free |
The total shared memory that is free. |
SharedMemory_Used |
The total shared memory that is used. |
RootDbSpace_Used |
The amount of RootDbSpace that is consumed. |
DB User Host Information Counters
The DB User Host Information object provides information about DB User Host.
The DB:User:Host Instance object displays the number of connections that are present for each instance of DB:User:Host.
Enterprise Replication DBSpace Monitors
The enterprise replication DBSpace monitors object displays the usage of various ER DbSpaces. The following table contains information about the enterprise replication DB monitors.
Counters |
Counter Descriptions |
---|---|
ERDbSpace_Used |
The amount of enterprise replication DbSpace that was consumed. |
ERSBDbSpace_Used |
The amount of ERDbSpace that was consumed. |
Enterprise Replication Perfmon Counters
The Enterprise Replication Perfmon Counter object provides information about the various replication counters.
The ServerName:ReplicationQueueDepth counter displays the server name followed by the replication queue depth.
IP
The IP object provides information on the IPv4-related statistics on your system. The following table contains information about the IP counters.
Note |
These counters are also part of the IP6 object, which supports Unified Communications Manager and provides information about the IPv6-related statistics on your system. |
Counters |
Counter Descriptions |
---|---|
Frag Creates |
The number of IP datagrams fragments that are generated at this entity. |
Frag Fails |
The number of IP datagrams that are discarded at this entity because the datagrams cannot be fragmented, such as datagrams where the Do not Fragment flag is set. |
Frag OKs |
The number of IP datagrams that are successfully fragmented at this entity. |
In Delivers |
The number of input datagrams that are delivered to IP user protocols. This counter includes Internet Control Message Protocol (ICMP). |
In Discards |
The number of input IP datagrams where no issues are encountered, but which are discarded. One possible reason is a lack of buffer space. This counter does not include any datagrams that are discarded while awaiting reassembly. |
In HdrErrors |
The number of input datagrams that are discarded with header errors. This counter includes bad checksums, version number mismatch, other format errors, time-to-live exceeded, and other errors that are discovered in processing their IP options. |
In Receives |
The number of input datagrams that are received from all network interfaces. This counter includes datagrams that were received with errors |
In UnknownProtos |
The number of locally addressed datagrams that are received successfully but discarded because of an unknown or unsupported protocol. |
InOut Requests |
The number of incoming IP datagrams that are received and the number of outgoing IP datagrams that are sent. |
Out Discards |
The number of output IP datagrams that are not transmitted and are discarded. One possible reason is a lack of buffer space. |
Out Requests |
This counter represents the total number of IP datagrams that local IP user-protocols (including ICMP) supply to IP in requests transmission. This counter does not include any datagrams that were counted in ForwDatagrams. |
Reasm Fails |
The number of IP reassembly failures that the IP reassembly algorithm detected, including time outs and errors. 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 these algorithms combine fragments as they are received. |
Reasm OKs |
The number of IP datagrams that are successfully reassembled. |
Reasm Reqds |
The number of IP fragments that are received that require reassembly at this entity. |
Memory
The memory object provides information about the usage of physical memory and swap memory on the server. The following table contains information about memory counters.
Counters |
Counter Descriptions |
---|---|
% Mem Used |
Displays the system physical memory utilization as a percentage. The value of this counter is calculated as follows: Total KBytes - Free KBytes - Buffers KBytes - Cached KBytes + Shared KBytes) / Total KBytes This value also corresponds to the Used KBytes/Total KBytes |
% Page Usage |
The percentage of active pages. |
% VM Used |
Displays the system virtual memory utilization as a percentage. The value of this counter is calculated as follows: Total KBytes - Free KBytes - Buffers KBytes - Cached KBytes + Shared KBytes + Used Swap KBytes) / (Total KBytes + Total Swap KBytes) This value also corresponds to Used VM KBytes/Total VM KBytes. |
Buffers KBytes |
The capacity of buffers in your system in kilobytes. |
Cached KBytes |
The amount of cached memory in kilobytes. |
Free KBytes |
The total amount of memory that is available in your system in kilobytes. |
Free Swap KBytes |
The amount of free swap space that is available in your system in kilobytes. |
HighFree |
The amount of free memory in the high region. The Linux kernel splits the virtual memory address space into memory regions. The high memory is memory above a certain physical address, and its amount depends on the total memory and the type of kernel on the system. For the Unified Communications Manager system with 4 GB memory, the high memory is roughly in the address of 896M to 4096M. |
HighTotal |
The total amount of memory in the high region. The Linux kernel splits the virtual memory address space into memory regions. The high memory is memory above a certain physical address, and its amount depends on the total memory and the type of kernel on the system. For the Unified Communications Manager system with 4 GB memory, the high memory is roughly in the address of 896M to 4096M. |
Page Faults Per Sec |
The number of page faults (both major and minor) that the system makes per second (post 2.5 kernels only). This reading does not necessarily represent a count of page faults that generate input and output (I/O) because some page faults can get resolved without I/O. |
Low Total |
The total low (non-paged) memory for kernel. |
Low Free |
The total free low (non-paged) memory for kernel. |
Page Major Faults Per Sec |
The number of major faults that the system makes per second that require a memory page from the disk (post 2.5 kernels only). |
Pages |
The number of pages that the system pages in from the disk, plus the number of pages that the system pages out to the disk. |
Pages Input |
The number of pages that the system pages in from the disk. |
Pages Input Per Sec |
The total number of kilobytes that the system pages in from the disk per second. |
Pages Output |
The number of pages that the system pages out to the disk. |
Pages Output Per Sec |
The total number of kilobytes that the system pages out to the disk per second. |
Shared KBytes |
The amount of shared memory in your system in kilobytes. |
SlabCache |
The memory used by created slabcaches by various kernel components, as a macroscopic counter representing the sum of all the individual entries in the proc's slabinfo. |
SwapCached |
The amount of Swap used as cache memory. Memory that once was swapped out, is swapped back in, but is still in the swapfile. |
Total KBytes |
The total amount of memory in your system in kilobytes. |
Total Swap KBytes |
The total amount of swap space in your system in kilobytes. |
Total VM KBytes |
The total amount of system physical and memory and swap space (Total Kbytes + Total Swap Kbytes) that is in use in your system in kilobytes. |
Used KBytes |
The amount of in-use physical memory. The value of the Used KBytes counter is calculated as follows: Total KBytes - Free KBytes - Buffers KBytes - Cached KBytes + Shared KBytes. The Used KBytes value differs from the Linux term that displays in the top or free command output. The Used value that displays in the top or free command output equals the difference in Total KBytes - Free KBytes and also includes the sum of Buffers KBytes and Cached KBytes. |
Used Swap KBytes |
This counter represents the amount of swap space that is in use on your system in kilobytes. |
Used VM KBytes |
This counter represents the system physical memory and the amount of swap space that is in use on your system in kilobytes. The value is calculated as follows: Total KBytes - Free KBytes - Buffers KBytes - Cached KBytes + Shared KBytes + Used Swap KBytes This value corresponds to Used Mem KBytes + Used Swap KBytes. |
Network Interface
The network interface object provides information about the network interfaces on the system. The following table contains information about network interface counters.
Counters |
Counter Descriptions |
---|---|
Rx Bytes |
The number of bytes, including framing characters that are received on this interface. |
Rx Dropped |
The number of inbound packets that are chosen to be discarded even though no errors have been detected. This action prevents the packet from being delivered to a higher-layer protocol. Discarding packets also frees up buffer space. |
Rx Errors |
The number of inbound packets (packet-oriented interfaces) and the number of inbound transmission units (character-oriented or fixed-length interfaces) that contain errors that prevented them from being delivered to a higher-layer protocol. |
Rx Multicast |
The number of multicast packets that are received on this interface. |
Rx Packets |
The number of packets that this sublayer delivered to a higher sublayer. This situation does not include the packets that are addressed to a multicast or broadcast address at this sublayer. |
Total Bytes |
The total number of received (Rx) bytes and transmitted (Tx) bytes. |
Total Packets |
The total number of Rx packets and Tx packets. |
Tx Bytes |
The total number of octets, including framing characters, that are transmitted out from the interface. |
Tx Dropped |
The number of outbound packets that are chosen to be discarded even though no errors are detected. This action prevents the packet from being delivered to a higher layer protocol. Discarding a packet also frees up buffer space. |
Tx Errors |
The number of outbound packets (packet-oriented interfaces) and the number of outbound transmission units (character-oriented or fixed-length interfaces) that are transmitted because of errors. |
Tx Packets |
The total number of packets that the higher-level protocols requested for transmission, including those that are discarded or not sent. This situation doesn't include packets that are addressed to a multicast or broadcast address at this sublayer. |
Tx QueueLen |
The length of the output packet queue (in packets). |
Number of Replicates Created and State of Replication
The Number of Replicates Created and State of Replication object provides real-time replication information for the system. The following table contains information about replication counters.
Counters |
Counter Descriptions |
---|---|
Number of Replicates Created |
The number of replicates that are created by Informix for the DB tables. This counter displays information during Replication Setup. |
Replicate_State |
The state of replication. The following list provides possible values:
|
Partition
The partition object provides information about the file system and its usage in the system. The following table contains information about partition counters. These counters are also available for the spare partition, if present.
Counters |
Counter Descriptions |
---|---|
% CPU Time |
The percentage of CPU time that is dedicated to handling IO requests that were issued to the disk. |
% Used |
The percentage of disk space that is in use on this file system. |
% Wait in Read |
Not Used. The Await Read Time counter replaces this counter. This counter is no longer valid with the counter value -1. |
% Wait in Write |
Not Used. The Await Write Time counter replaces this counter. This counter is no longer valid with the counter value -1. |
Await Read Time |
The average time measured in milliseconds for read requests that are issued to the device to be served. |
Await Time |
The average time measured in milliseconds for input and output (I/O) requests that are issued to the device to be served. This reading includes the time spent by the requests in queue and the time spent servicing them. |
Await Write Time |
The average time measured in milliseconds for write requests that are issued to the device to be served. |
Queue Length |
The average queue length for the requests that are issued to the disk. |
Read Bytes Per Sec |
The amount of data in bytes per second that is read from the disk. |
Total Mbytes |
The amount of total disk space in megabytes that is on this file system. |
Used Mbytes |
The amount of disk space in megabytes that is in use on this file system. |
Write Bytes Per Sec |
The amount of data that is written to the disk in bytes per second. |
Process
The process object provides information about the processes that are running on the system. The following table contains information about process counters.
Counters |
Counter Descriptions |
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---|---|---|---|
% CPU Time |
This counter, which is expressed as a percentage of total central processing unit (CPU) time, represents the tasks share of the elapsed CPU time since the last update. |
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% MemoryUsage |
This counter represents the percentage of physical memory that a task is currently using. |
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Data Stack Size |
This counter represents the stack size for task memory status. |
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Nice |
|
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Page Fault Count |
This counter represents the number of major page faults that a task encounters that requires the data to be loaded into memory. |
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PID |
This counter displays the task-unique process ID. The ID periodically wraps, but the value never equals zero. |
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Process Status |
This counter displays the process status:
|
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Shared Memory Size |
This counter displays the amount of shared memory in kilobytes (KB) that a task is using. Other processes could potentially share the same memory. |
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STime |
This counter displays the system time (STime), measured in jiffies, that this process has scheduled in kernel mode. A jiffy corresponds to a unit of CPU time and is used as a base of measurement. One second comprises 100 jiffies. |
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Thread Count |
This counter displays the number of threads that are currently grouped with a task. A negative value (-1) indicates that this counter is currently not available. This situation happens when thread statistics (which include all performance counters in the Thread object as well as the Thread Count counter in the Process object) are turned off because the system total processes and threads exceed the default threshold value. |
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Total CPU Time Used |
This counter displays the total CPU time in jiffies that the task used in user mode and kernel mode since the task started. |
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UTime |
This counter displays the time, measured in jiffies, that a task has scheduled in user mode. |
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VmData |
This counter displays the virtual memory usage of the heap for the task in KB. |
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VmRSS |
This counter displays the virtual memory (Vm) resident set size (RSS) that is currently in physical memory in KB. This reading includes the code, data, and stack. |
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VmSize |
This counter displays the total virtual memory usage for a task in KB. This reading includes all code, data, shared libraries, and pages that have been swapped out. Virtual Image = swapped size + resident size |
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Wchan |
This counter displays the channel (system call) in which the process is waiting. |
Processor
The processor object provides information about different processor time usage in percentages. The following table contains information about processor counters.
Counters |
Counter Descriptions |
---|---|
% CPU Time |
This counter displays the processors share of the elapsed central processing unit (CPU) time, excluding idle time, since the last update. This share is expressed as a percentage of total CPU time. |
Idle Percentage |
This counter displays the percentage of time that the processor is in the idle state and does not have an outstanding disk input and output (I/O) request. |
IOwait Percentage |
This counter represents the percentage of time that the processor is in the idle state while the system had an outstanding disk I/O request. |
Irq Percentage |
This counter represents the percentage of time that the processor spends executing the interrupt request that is assigned to devices, including the time that the processor spends sending a signal to the computer. |
Nice Percentage |
This counter displays the percentage of time that the processor spends executing at the user level with nice priority. |
Softirq Percentage |
This counter represents the percentage of time that the processor spends executing the soft IRQ and deferring task switching to get better CPU performance. |
System Percentage |
This counter displays the percentage of time that the processor is executing processes at the system (kernel) level. |
User Percentage |
This counter displays the percentage of time that the processor is executing normal processes at the user (application) level. |
System
The System object provides information about file descriptors on your system.
The following table contains information about system counters.
Counters |
Counter Descriptions |
---|---|
Allocated FDs |
The number of allocated file descriptors. |
Being Used FDs |
The number of file descriptors that are currently in use in the system. |
Freed FDs |
The number of allocated file descriptors on the system that are freed. |
IOPerSecond |
The number of input and output (I/O) operations on all disk partitions per second on this server. If you experience a system performance issue, use the information in this counter to measure the impact of the aggregate I/O operations on this server. |
IOReadReqMergedPerSecond |
The number of read requests merged per second that are queued to all devices on this server. |
IOWriteReqMergedPerSecond |
The number of write requests merged per second that are queued to all devices on this server. |
IOReadReqPerSecond |
The number of read requests per second that are issued to all devices on this server. |
IOWriteReqPerSecond |
The number of write requests per second that are issued to all devices on this server. |
IOSectorsReadPerSecond |
The number of sectors read per second from all devices on this server. |
IOSectorsWrittenPerSecond |
The number of sectors written per second to all devices on this server. |
IOKBytesReadPerSecond |
The number of KBytes read per second from all devices on this server. |
IOKBytesWrittenPerSecond |
The number of KBytes written per second to all devices on this server. |
IOSectorsReqSizeAvg |
The average size in sectors of the requests that are issued to all devices on this server. |
IOReqQueueSizeAvg |
The average queue length of the requests that are issued to all devices on this server. |
IOAwait |
The average time in milliseconds for I/O requests that are issued to all devices to be served. This reading includes the time spent by the requests in queue and the time spent servicing the requests. |
IOServiceTime |
The average service time in milliseconds for I/O requests that are issued to all devices on this server. |
IOCpuUtil |
The percentage of CPU time during which I/O requests are issued to the device (bandwidth utilization for the device) on this server. |
Max FDs |
The maximum number of file descriptors that are allowed on the system. |
Total CPU Time |
The total time in jiffies that the system has been up and running. |
Total Processes |
The number of processes on the system. |
Total Threads |
The number of threads on the system. |
TCP
The TCP object provides information on the TCP statistics on your system.
The following table contains information about the TCP counters.
Counters |
Counter Description |
---|---|
Active Opens |
This counter displays the number of times that the TCP connections make a direct transition to the SYN-SENT state from the CLOSED state. |
Attempt Fails |
This counter displays the number of times that the TCP connections make a direct transition to the CLOSED state from either the SYN-RCVD state or the SYN-RCVD state. The counter also displays the number of times TCP connections make a direct transition to the LISTEN state from the SYS-RCVD state. |
Curr Estab |
This counter displays the number of TCP connections with a current state of ESTABLISHED or CLOSE- WAIT. |
Estab Resets |
This counter displays the number of times that the TCP connections make a direct transition to the CLOSED state from the ESTABLISHED state or the CLOSE-WAIT state. |
In Segs |
This counter displays the total number of segments that are received, including those that are received in error. This count only includes segments that are received on currently established connections. |
InOut Segs |
This counter displays the total number of segments that are sent and the total number of segments that are received. |
Out Segs |
This counter displays the total number of segments that are sent. This count only includes segments that are sent on currently established connections, but excludes retransmitted octets. |
Passive Opens |
This counter displays the number of times that TCP connections make a direct transition to the SYN-RCVD state from the LISTEN state. |
RetransSegs |
This counter displays the total number of segments that are retransmitted because the segment contains one or more previously transmitted octets. |
Thread
The Thread object provides a list of running threads on your system.
The following table contains information about the Thread counters.
Counters |
Counter Description |
---|---|
% CPU Time |
This counter displays the threads share of the elapsed CPU time since the last update. This counter expresses the share as a percentage of the total CPU time. |
PID |
This counter displays the threads leader process ID. |
AXL Web Service
The AXL Web Service object provides information about the AXL Web Service running on your system. The following table contains information about the AXL Web Service counters.
Counters |
Counter Description |
---|---|
ThrottleCount |
This counter represents the number of times Administrative XML Layer (AXL) throttling has been engaged since the last restart of the Cisco AXL Web Service. Throttling occurs when the AXL service receives more change requests than it is able to process. |
ThrottleState |
This counter represents whether Administrative XML Layer (AXL) throttling is currently active (throttling is engaged). A value of 1 in this counter indicates that throttling is currently engaged, which means that any application attempting to send a write request to Unified Communications Manager through AXL will be denied due to AXL throttling. Read requests will continue to be allowed and processed while AXL throttling is engaged. A value of zero indicates that throttling is not occurring at this time and all read and write requests will be processed. |
Ramfs
The Ramfs object provides information about the ram file system. The following table contains information on the Ramfs counters.
Counters |
Counter Description |
---|---|
FilesTotal |
This counter represents the total number of files in the ram-based file system (ramfs). |
SpaceFree |
This counter represents the amount of free data blocks in the ram-based file system (ramfs). A block is a uniformly sized unit of data storage for a filesystem. The block size specifies the size that the file system uses to read and write data. On the Unified Communications Manager system, the block size is 4096 bytes. |
SpaceUsed |
This counter represents the amount of used data blocks in the ram-based filesystem (ramfs). A block is a uniformly sized unit of data storage for a file system. The block size specifies the size that the file system will use to read and write data. On the Unified Communications Manager system, the block size is 4096 bytes. |