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Foglight Experience Monitor 5.8.1 - Metric Reference Guide

Foglight Experience Monitor metric categories
General metric categories Application-oriented categories Service-oriented categories Web services category Content-oriented categories Infrastructure-oriented categories Types of metrics How standard metrics are calculated End-User Access Speed Network Latency Instrumented metric: Load Time Time frames in which metrics are viewed
Metric definitions
Non-system category metrics
Access Speed Access Speed Distribution Alarm Application Time Cipher Suite Not Found City Clicks per Session Client IP Command Byte Volume - Server Command Byte Volume - User Command Client Time Command Completion Time Command Count Command Data Size - Server Command Data Size - User Command Initial Response Time Command Initial Response Time Distribution Command Network Latency Command Processing Time Command Processing Time Percentile Command Processing Time Service Level Command Timeout Count Component List Size Connection Closed Count Connection Count Connection Duration Connection Established Count Connection Open Wait Count Connection Reset Count Connection Timeout Count Duration End-to-End Time for Dialup Users (0-56k) End-to-End Time for ISDN Users (56k-128k) End-to-End Time for Low-End Broadband Users (128k-384k) End-to-End Time for High-End Broadband Users (384k-728k) End-to-End Time for T1/Lan Users (> 728k) End-to-End Time Service Level Error Count (HTTP 4xx Client Errors) Error Count (HTTP 5xx Server Errors) Fault Actor Fault Code Fault Detail Fault String Fault Subcodes Field Out of Range Hit Count Hit End-To-End Time Hit Redirect Ratio Hit Size Incomplete SSL Key Invalid SSL Content Invalid SSL Handshake Type Invalid SSL Key Invalid SSL Record Length Invalid SSL State Invalid SSL Version Number IP Packet Byte Volume - Server IP Packet Byte Volume - User IP Packet Count - Server IP Packet Count - User IP Packet Size - Server IP Packet Size - User ISP Load Time Load Time Percentile Login Name Missing Reusable Secret Missing SSL Key Other Requests Page Access Speed Distribution Page Client Time Page Connection Count Page Download Attempts Page Download Size Page Element Count Page End-to-End Time Page End-To-End Time Distribution Page End-To-End Time Percentile Page Exit Count Page Network Latency Page Peak Count per Second Page Processing Time Page Processing Time Distribution Page Processing Time Percentile Page Redirect Ratio Page Stop Count Page Stop Rate Page Stop Time Page Think Time Page Timeout Count Page Views Path Count Path Duration Path End-To-End Time Path End-to-End Time Percentile Processing Load Percentage Processing Time Service Level Referrer Request Code Count Response Code Count Service Abort Count Service Client Time Service Count Service Duration Service End-to-End Time Service End-to-End Time Distribution Service End-to-End Time Percentile Service Network Latency Service Peak Count per Second Service Processing Load Percentage Service Processing Time Service Processing Time Distribution Service Processing Time Percentile Service Processing Time Service Level Service Request Count per Second Service Started Count Service Think Time Service Timeout Count Session Count Session Key Site Stickiness SOAP Operation Client Time SOAP Operation Completion Time SOAP Operation Completion Time Distribution SOAP Operation Consumer Overhead Ratio SOAP Operation Count SOAP Operation End-To-End Time SOAP Operation End-to-End Time Distribution SOAP Operation End-to-End Time Percentile SOAP Operation Failure Count SOAP Operation Initial Response Time SOAP Operation Network Latency SOAP Operation Peak Count per Second SOAP Operation Processing Time SOAP Operation Processing Time Distribution SOAP Operation Processing Time Percentile SOAP Operation Provider Overhead Ratio SOAP Operation Success Count SOAP Operation Success Ratio SOAP Operation Think Time SOAP Operation Timeout Count SOAP Transaction Abort Count SOAP Transaction Client Time SOAP Transaction Completion Time SOAP Transaction Completion Time Distribution SOAP Transaction Count SOAP Transaction Duration SOAP Transaction End-to-End Time SOAP Transaction End-to-End Time Distribution SOAP Transaction End-to-End Time Percentile SOAP Transaction Initial Response Time SOAP Transaction Network Latency SOAP Transaction Peak Count per Second SOAP Transaction Processing Time SOAP Transaction Processing Time Distribution SOAP Transaction Processing Time Percentile SOAP Transaction Processing Time Service Level SOAP Transaction Request Peak Count per Second SOAP Transaction Think Time SOAP Transaction Timeout Count SSL Memory Error Step Started Count Step Completion Count Step Abort Count Step Timeout Count Subnet Success Ratio Success Ratio (with Client Errors) Success Ratio (with Server Errors) TCP Command Client Time TCP Command Completion Time TCP Command Count TCP Command Initial Response Time TCP Command Initial Response Time Percentile TCP Command Network Latency TCP Command Processing Time TCP Connection Open Peak Count per Second TCP Queue Size TCP Control Segment Byte Volume - Client TCP Control Segment Byte Volume - Server TCP Control Segment Count - Client TCP Control Segment Count - Server TCP Control Segment Size - Client TCP Control Segment Size - Server TCP Data Segment Byte Volume - Client TCP Data Segment Byte Volume - Server TCP Data Segment Count - Client TCP Data Segment Count - Server TCP Data Segment Size - Client TCP Data Segment Size - Server TCP Duplicate Resend Segment Byte Volume - Client TCP Duplicate Resend Segment Byte Volume - Server TCP Duplicate Resend Segment Count - Client TCP Duplicate Resend Segment Count - Server TCP Duplicate Resend Segment Size - Client TCP Duplicate Resend Segment Size - Server TCP Fragmented Segment Byte Volume - Client TCP Fragmented Segment Byte Volume - Server TCP Fragmented Segment Size - Client TCP Fragmented Segment Size - Server TCP Fragmented Segment Count - Client TCP Fragmented Segment Count - Server TCP Invalid Checksum Segment Byte Volume - Client TCP Invalid Checksum Segment Byte Volume - Server TCP Invalid Checksum Segment Size - Client TCP Invalid Checksum Segment Size - Server TCP Invalid Checksum Segment Count - Client TCP Invalid Checksum Segment Count - Server TCP Payload Byte Volume - Client TCP Payload Byte Volume - Server TCP Resend Segment Byte Volume - Client TCP Resend Segment Byte Volume - Server TCP Resend Segment Count - Client TCP Resend Segment Count - Server TCP Resend Segment Size - Client TCP Resend Segment Size - Server TCP Segment Byte Volume - Client TCP Segment Byte Volume - Server TCP Segment Count - Client TCP Segment Count - Server TCP Segment Size - Client TCP Segment Size - Server TCP Timeout Count - Syn TCP Timeout Count - Idle TCP Timeout Count - Half Open TCP Urgent Segment Byte Volume - Client TCP Urgent Segment Byte Volume - Server TCP Urgent Segment Count - Client TCP Urgent Segment Count - Server TCP Urgent Segment Size - Client TCP Urgent Segment Size - Server Unexpected Client Hello Message Unexpected Server Hello Message Unknown Key Exchange Unload Time Unload Time Percentile User Agent User Count User Stickiness
System category metrics
Agent Memory Consumption Warnings Agent Restarts Baseline Partition Size Backup Errors Checksum Errors Client Segments Count Client Segments Missing Client Segments Missing Rate Communication Errors Connection Errors Connections Started Connections Dropped CPU1 Temperature CPU2 Temperature CPU Core 1 Utilization CPU Core 2 Utilization CPU Core 3 Utilization CPU Core 4 Utilization CPU Core 5 Utilization CPU Core 6 Utilization CPU Core 7 Utilization CPU Core 8 Utilization CPU Utilization Database Load Errors Database Load Time Database Partition Usage Database Records Loaded Datastore Inode Usage Datastore Partition Usage Day Partition Size Excessive Data Volume FxV Bytes Transmitted FxV Discards FxV Hits Transmitted Hour Partition Size Log Partition Usage Memory Consumption Warnings Memory Utilization Metric Table Entries Metric Table Size Minute Partition Size Monthly Partition Size OS Partition Usage Packet Drop Rate Packet Errors Packet Errors - Port 1 Packet Errors - Port 2 Packet Errors - Port 3 Packet Errors - Port 4 Packet Errors - Port 5 Packet Errors - Port 6 Packet Errors - Port 7 Packet Errors - Port 8 Packets Captured Packets Captured – Port 1 Packets Captured – Port 2 Packets Captured – Port 3 Packets Captured – Port 4 Packets Captured – Port 5 Packets Captured – Port 6 Packets Captured – Port 7 Packets Captured – Port 8 Packets Dropped Packets Dropped – Port 1 Packets Dropped – Port 2 Packets Dropped – Port 3 Packets Dropped – Port 4 Packets Dropped – Port 5 Packets Dropped – Port 6 Packets Dropped – Port 7 Packets Dropped – Port 8 Packets Processed Packets Processed – Port 1 Packets Processed – Port 2 Packets Processed – Port 3 Packets Processed – Port 4 Packets Processed – Port 5 Packets Processed – Port 6 Packets Processed – Port 7 Packets Processed – Port 8 RAID Array Degraded Relation Table Entries Relation Table Size Resource Table Entries Resource Table Size SiteMinder Errors Server Segments Count Server Segments Missing Server Segments Missing Rate SOAP Error Rate SOAP Errors SOAP Message Count SOAP XML Errors SSL Connection Errors SSL Connections Released SSL Connections Started SSL Connection Error Rate Swap Partition Usage System Temperature Tmp Partition Usage Total Table Size Value Count Table Entries Value Count Table Size Weekly Partition Size

Text metric

This type of metric provides text values which are calculated through their extraction from monitored traffic. Values can represent session information, such as an end user’s login name, ISP, or subnet, or can represent a related resource such as a web site or alarm definition name.

How standard metrics are calculated

This section provides information about the following topics:

Command Timing metrics

Command timing metrics provide performance information about different parts of a command. A command is a request for a page component (from client to server), followed by a response (from server to client), that is transmitted over HTTP or HTTPS.

The main command timing metrics are:

These types of commands could also be SOAP operations, in which case the metrics are identically calculated, but use more specific names:

There are some cases where HTTP requests never receive a valid response from the server. For information about this type of request, see Exceptions.

The following sections describe the various ways in which the client and server can interact during a web session, and how the aforementioned metrics are measured. For more examples of how command timing metrics are calculated, see Command Timing Metrics summary.

Command Initial Response Time

How long does it take the back end to begin responding to a client-based request?

The actions represented by the Command Initial Response Time metric is the simplest interaction that can occur between a client and server that constitutes a completed command.

In the following example, the request and response each fit in a single packet.

Here, the arrows represent packets crossing the network. The first packet carries the request from the client to the server (index.htm). The second packet carries the response from the server to the client, which contains the requested file (200 bytes long).

The metric is calculated by finding the difference between when the request and response are respectively received and sent:

TimeA represents when the request packet arrives at the server, and TimeB represents when the response packet leaves the server.

This initial response time is always a subset of the Command Processing Time metric (which is discussed in the next section). In the simple example given above, where there is just one packet for the request, and one packet for the response, the Command Initial Response Time equals the Command Processing Time.

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