Network analysis-Enterprise Mobile Application Studio(EMAS)-阿里云帮助中心

Key concepts

Network analysis aggregates and displays data for a specified time period at intervals of 1 minute, 5 minutes, 1 hour, or 1 day.

For example, if the aggregation interval is 1 day, the feature displays data for the last 7 days at a 1-day granularity.

Note

By default, for 1-minute and 5-minute intervals, data from the last 15 minutes is displayed.
By default, for the 1-hour interval, data from the last day is displayed.
By default, for the 1-day interval, data from the last 7 days is displayed.

This section describes how to view data in network analysis.

Log on to the EMAS console, find and click your project to open the EMAS overview page.
In the top navigation bar, select developer tools.
In the left-side navigation pane, select performance analysis, and then select network analysis.
Set the filters and click Query. For more filtering options, see More Search. The following example uses a 1-day aggregation interval over the last 7 days.
View detailed data in the domain name list, network trend, error list, and error distribution sections.

This section displays a list of domains or paths for network requests that match your filter criteria.

Parameter	Description
All	Displays all domains.
Connection reuse rate	The number of requests that reused a connection divided by the total number of requests.
HTTP errors	Displays the domains or paths with HTTP errors and the corresponding error count.
Network errors	Displays the domains or paths with network errors and the corresponding error count.
Network request latency	Lists domains or paths and their average network request latency.
DNS latency	Lists domains or paths and their average DNS latency.
SSL latency	Lists domains or paths and their average SSL latency.
TCP connection time	Lists domains or paths and their average TCP connection time.
Sending duration	The duration of the request transmission.
Time to first byte (TTFB)	The time from when a request is fully sent until the first byte of the response is received.
Content download time	The time from when the first byte of the response is received until the download is complete.
Request size	Lists domains or paths and their average request size.
Response size	Lists domains or paths and their average response size.

The network trend section shows the following data:

Subtab	Description
HTTP errors	Displays HTTP errors, their trends over time, and error details.
Network errors	Displays network errors, their trends over time, and error details.
Network request latency	Displays network request latency and its trend over time.
DNS latency	Displays DNS latency and its trend over time.
SSL latency	Displays SSL latency and its trend over time.
TCP connection time	Displays TCP connection time and its trend over time.
Request size	Displays request size and its trend over time.
Response size	Displays response size and its trend over time.