Server Activity Statistics

Select whether to monitor live or static statistics.

Statistics: Select this option to view the statistics as currently gathered. The page is static and the statistics are not updated until you click Live Statistics Monitoring.

Live Statistics Monitoring: Select this option to view the statistics as currently gathered and to have them refreshed at the rate specified in the Refresh Rate field.

These general statistics are grouped into the following categories:

Server Activity

The Server Activity section displays general server utilization statistics.

Statistic

Description

CPU Utilization

Displays the current CPU utilization rate. Use the available graph for capacity planning.

Click Graphs to view the CPU usage for a specific unit of time (1 hour, 1 day, 1 week, 1 month, 6 months, or 12 months). The Value axis displays the percentage of use.

Cache Hit

Displays the current cache hit rate. A high cache hit rate indicates that the caching system is off-loading significant request processing from the web servers whose objects have been cached.

Click Graphs to view the number of cache hits for a specific unit of time (1 hour, 1 day, 1 week, 1 month, 6 months, or 12 months). The Value axis displays the number of hits.

Mounted Partitions Disk Space

Displays the total disk space configured on mounted partitions.

Mounted Partitions Disk Space Used

Displays the disk space in use on mounted partitions.

Mounted Partitions Disk Space Free

Displays the disk space available on mounted partitions.

Swap Partition Disk Space

Displays the total disk space configured for the swap partition. The Linux Gateway Service displays the available swap space reported by the Linux kernel (see sysinfo for details).

Swap Partition Disk Space Used

Displays the disk space in use on the swap partition.

Swap Partition Disk Space Free

Displays the disk space available on the swap partition.

Cache Disk Space

Displays the total disk space available for caching.

Cache Disk Space Utilization

Reserved. Not currently used.

Total Installed Memory

Displays the amount of memory that is installed on Access Gateway.

Start Up Time

Displays the last time Access Gateway was started.

Up Time

Displays the total time Access Gateway has been running after it was last started.

Number of Objects Cached

Displays the total number of objects that have been cached after Access Gateway was last started.

Connections

The connection statistics show the current and peak levels of usage in terms of TCP connections.

Statistic

Description

Current Connections to Origin Server

Displays the current number of connections that Access Gateway has established with web servers.

Current Connections to Browsers

Displays the current number of connections that Access Gateway has established with browsers.

Current Total Connections

Displays the current total of all connections that Access Gateway has established.

Total WebSocket Connections

Displays the total number of WebSocket connections that Access Gateway has established with clients and servers.

Idle WebSocket Connections

Displays the number of WebSocket connections that are idle.

Connections are idle if no frame passes through the connection for 25% of read-time.

Connections to Origin Server

Displays the total number of connections that Access Gateway has established with web servers after it was last started.

Click Graphs to view the number of connections for a specific unit of time (1 hour, 1 day, 1 week, 1 month, 6 months, or 12 months). The Value axis displays the number of connections.

Peak Connections from Origin Server

Displays the peak number of connections that Access Gateway has established with web servers.

Connections to Browsers

Displays the total number of connections that Access Gateway has established with browsers after it was last started.

Click Graphs to view the number of connections for a specific unit of time (1 hour, 1 day, 1 week, 1 month, 6 months, or 12 months). The Value axis displays the number of connections.

Peak Connections to Browsers

Displays the peak number of connections that Access Gateway has established with browsers.

Total Connections through SOCKS

Displays the total number of connections Access Gateway has established through a firewall.

Failed Connection Attempts

Displays the total number of failed connection attempts Access Gateway has made while attempting to fill its web object cache.

Bytes

The bytes statistics show how fast information is being sent in response to the following types of requests:

  • Browser requests to Access Gateway

  • Access Gateway requests to the web servers

Statistic

Description

Throughput of the Origin Server

Displays the average number of bytes of data being sent each second from the web servers to Access Gateway.

Average number of bytes = total number of bytes sent from origin server to Access Gateway per system uptime in seconds.

Click Graphs to view the number of bytes for a specific unit of time (1 hour, 1 day, 1 week, 1 month, 6 months, or 12 months). The Value axis displays the number of bytes.

Throughput of the Browser

Displays the average number of bytes of data being sent each second from Access Gateway to the browsers.

Average number of bytes = total number of bytes sent from Access Gateway to browsers per system uptime in seconds.

Click Graphs to view the number of bytes for a specific unit of time (1 hour, 1 day, 1 week, 1 month, 6 months, or 12 months). The Value axis displays the number of bytes.

Total Bytes per Second

Displays the total number of bytes of data being sent each second from Access Gateway and from the web servers.

Click Graphs to view the number of bytes for a specific unit of time (1 hour, 1 day, 1 week, 1 month, 6 months, or 12 months). The Value axis displays the number of bytes.

Bytes Sent to Origin Server

Displays the total number of bytes sent to the origin server after the server is started.

Bytes Received from Origin Server

Displays the total number of bytes of data sent to Access Gateway from the web servers after Access Gateway last started.

Bytes Sent to Browser

Displays the total number of bytes of data sent to the browsers from Access Gateway after Access Gateway last started.

Bytes Received from Browser

The total number of bytes received from the browser after the server is started.

Total Bytes

Displays the total number of bytes of data sent from Access Gateway and from the web servers after Access Gateway was last started.

Requests

The request statistics show the number of requests that are being sent from the browsers to Access Gateway and from Access Gateway to the web servers.

Statistic

Description

Current Requests to Origin Server

Displays the current number of requests that Access Gateway has made to the web servers.

Click Graphs to view the number of requests for a specific unit of time (1 hour, 1 day, 1 week, 1 month, 6 months, or 12 months). The Value axis displays the number of requests.

Current Requests from Browsers

Displays the current number of requests that the browsers have made to Access Gateway.

Click Graphs to view the number of requests for a specific unit of time (1 hour, 1 day, 1 week, 1 month, 6 months, or 12 months). The Value axis displays the number of requests.

Total Current Requests

Displays the total number of current requests that Access Gateway has received from the browsers and that Access Gateway has sent to the web servers.

Successful Requests to Origin Server

Displays the total number of successful requests that Access Gateway has sent to the web servers after Access Gateway last started.

Failed Requests to Origin Server

Displays the total number of failed requests that Access Gateway has sent to the web servers after Access Gateway last started.

Cumulative Requests to Browsers

Displays the total number of requests that the browsers have sent to Access Gateway after Access Gateway last started.

Total Cumulative Requests

Displays the total number of cumulative requests that Access Gateway has processed after Access Gateway last started.

Requests per Second to Origin Server

Displays the number of requests that are being sent each second from Access Gateway to the web servers.

Click Graphs to view the number of requests for a specific unit of time (1 hour, 1 day, 1 week, 1 month, 6 months, or 12 months). The Value axis displays the number of requests.

Requests per Second from Browsers

Displays the number of requests that are being sent each second from the browsers to Access Gateway.

Click Graphs to view the number of requests for a specific unit of time (1 hour, 1 day, 1 week, 1 month, 6 months, or 12 months). The Value axis displays the number of requests.

Total Requests per Second

Displays the total number of requests that are being sent each second from Access Gateway and from the browsers.

Peak Requests per Second to Origin Server

Displays the peak number of requests that have been sent in one second from Access Gateway to the web servers.

Peak Requests per Second from Browsers

Displays the peak number of requests that have been sent in one second from the browsers to Access Gateway.

Cache Freshness

The cache freshness statistics display information about the cache refresh process.

Statistic

Description

Total “Get If Modified Since” Request

Displays the total number of Get If Modified Since requests that Access Gateway has received from browsers.

Total Not Modified Replies

Displays the total number of 304 Not Modified replies that Access Gateway has received from the web servers for updated content.

Cache Freshness

Displays the percentage of objects in cache that are considered fresh.

Click Graphs to view the percentage of fresh objects for a specific unit of time (1 hour, 1 day, 1 week, 1 month, 6 months, or 12 months). The Value axis displays the percentage of fresh objects.

Oldest Object in Memory

Displays how long the oldest cache object has been cached.