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- The delay before data transfer begins after the request is made.
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Latency should be measured with canaries to represent the client experience as well as with server-side metrics. Whenever the average of some percentile latency, like P99 or TM99.9, goes above a target SLA, you can consider that downtime, which contributes to your annual downtime calculation.
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A computer system can experience many different latencies, such as disk latency, fiber-optic latency, and operational latency. The following are important types of latency. Disk latency
These metrics relate to the most critical aspects of a service's performance: latency, faults, and errors. They can help you identify issues, monitor performance trends, and optimize resources to improve the overall user experience.
- Legacy Application
- Moving to The Cloud
- Does It Scale?
- Conclusion
Imagine I have a Containerize application that receives an API input and inserts the payload into a database. Once the item is inserted, I must communicate this action to other services/departments and save this request for future analysis. The Service Layer has the logic to run all the steps and send the correct information to each service/departm...
Assuming I am not an expert with Serverless, I will do my research and start replacing my legacy application with serverless native services. For reasons (that are not important to this article), I will end up to something like this: I have replaced Express.js with Amazon API gateway. The Service Layer code is now running inside AWS Lambda, where I...
It depends on what I want to achieve. If I develop this application without using any best practices, this application will run around 400ms with this setup: 1. Node.js 2. Lambda at 1024 MB of memory 3. No parallelism 4. No usage of execution context 5. Burst quota 1000 Lambda 6. Lambda concurrency 1000 That will result in more or less 2.5K TPS. Th...
Latency can be a potential issue with serverless applications, but some steps can be taken to minimise it. By following these best practices, you can help reduce latency in your AWS Lambda environment and ensure that your functions can execute quickly and efficiently. In addition, doing so will significantly influence your application's scalability...
Latency is the time needed for a packet to go from source to destination over a network connection, and is usually measured in milliseconds (ms), with low latency requirements sometimes expressed in microseconds (μs). Latency is a function of the speed of light, hence latency increases with distance.
Dec 15, 2023 · With SLOs you define an SLI and an attainment goal for how often your service is in compliance with the SLI over a longer time period. For example, my GetResource API will achieve a latency of less than 1000ms 99.9% of 1-minute periods in a rolling 14-day interval.
Feb 13, 2023 · 20 min read. + 2. Table of contents. Introduction to CloudWatch. Benefits of CloudWatch. Comparison to other Monitoring Services. CloudTrail vs. CloudWatch. CloudWatch Logs - Centralized Place for all Logs. What is a Log? CloudWatch Logs Concepts. Log Event - The Log Output. Log Streams - One or more Log Events.
