Email Client Network Latency and Bandwidth Measurement
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Solution Overview
Problem
Existing email services lack comprehensive and real-time measurement of network latency and connection bandwidth across different domains, which hinders effective infrastructure planning and resource management, as current methods require active user involvement and do not utilize existing email infrastructure for inventorying end-user bandwidth and latency.
Innovation Solution
Incorporating instrumentation in the browser to measure network latency and connection bandwidth by adding a randomly generated variable to browser queries for test files, allowing for statistical analysis of bandwidth and latency across various domains within the email infrastructure, without storing personally identifiable information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing third-party websites are used to measure bandwidth and latency, then measurement capability is provided, but user active involvement is required and existing email infrastructure is not utilized
Solution Approach 1:
The email system automatically performs bandwidth and latency measurements using its own infrastructure without requiring users to actively seek out measurement services. The system leverages existing email traffic and attachments to conduct measurements passively, turning the email service itself into a measurement tool that operates autonomously.
Solution Approach 2:
The email infrastructure is made multi-functional by combining its primary email delivery function with network measurement capabilities. The same servers, networks, and traffic used for email routing are simultaneously utilized for bandwidth and latency measurements, eliminating the need for separate measurement infrastructure.
2Measurement precision
If one-time upload/download tests are used to measure bandwidth, then connection speed estimation is obtained, but statistically significant measurements are not achieved
Solution Approach 1:
Instead of performing isolated one-time measurements, the system continuously measures bandwidth and latency across multiple email transactions, attachments, and users over time. This continuous measurement approach accumulates a large volume of data points, enabling statistically significant analysis of network performance.
Solution Approach 2:
The system pre-configures measurement instrumentation within the email client and server infrastructure, establishing measurement capabilities before actual email traffic occurs. This allows measurements to be automatically captured as part of normal email operations without requiring separate measurement actions.
3Productivity
If comprehensive network measurements are implemented, then infrastructure planning capability is improved, but data collection and processing complexity increases
Solution Approach 1:
The measurement functionality is merged with the existing email client and server software, combining network measurement tools with email application logic. This integration allows measurements to be taken using the same codebase and infrastructure already in place, reducing overall system complexity compared to separate measurement systems.
Solution Approach 2:
The email attachments and data transmissions serve as intermediaries for carrying measurement information. Instead of requiring direct communication between measurement tools and infrastructure components, the existing email data flow acts as a mediator that naturally carries the measurement signals and results through the system.
Data Source
AI summary
One or more techniques and/or systems are disclosed for measuring a client's network latency and the client's connection bandwidth. A network latency is determined by adding a randomly generated variable to a browser query string for a get request for a test file on a remote server, where the test file fits in one response packet. A first amount of time it takes for the test file to be received by the browser from when the get request is sent is determined and used to determine the network latency between the client and remote server. A connection bandwidth is determined by determining a second amount of time it takes for an email response to be received by the browser for an email request from the browser to a remote server. The size of the response is identified and combined with the second time to determine the connection bandwidth.