Why Does Tail Latency Matter?

It’s a complicated question, actually: latency versus throughput. Throughput is how many responses you can give to your varied customers in a certain amount of time. Latency is the amount of time it took for an individual customer to receive the response to their request. If your product is going to succeed, obviously you need […]

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Analyzing API Performance Hour-of-Day Statistics

A recent post analyzed API performance by hour of day over a one-week period. The average performance of calls to the API was fairly consistent, except for calls made in the last hour of the day (the hour before Midnight Universal Time). This plot presents the analysis results: The question is: why was average performance […]

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Analyzing API Performance Binned by Hour of Day

Performance data from the API Science API can be analyzed in many different ways. For example, a recent post presents A Graphical View of API Performance Based on Call Location. The analysis uses cURL statistics to compare the performance of monitors that call the World Bank Countries API from various locations around the globe over […]

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Analyzing API Call Performance from Different Global Locations Based on cURL Metrics

My previous post presented “A Graphical View of API Performance Based on Call Location.” In that post, we analyzed the performance of a week of calls to the World Bank Countries API (which is served from Washington DC) from four different locations around the globe: Washington DC USA, Oregon USA, Ireland, and Tokyo Japan. The […]

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A Graphical View of API Performance Based on Call Location

The performance of APIs is dependent on both the processing time from when the API receives a request and delivers a response, and the time it takes for the request and response data packets to traverse the Internet distance between the calling system and the system that hosts the API. The timings for calls to […]

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How to Create an Automated Custom Web Site that Displays API Uptime Data

Previous posts described how to use curl, cron, JSON, Python, matplotlib, and HTML to create an automatically-updated custom API performance web page. In addition to providing API performance data, the API Science API also provides uptime data for the APIs you monitor. In this post, I’ll demonstrate how to download API uptime data and create […]

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With APIs and Software Libraries, How Much Code Is Needed to Create Something Immensely Useful? Not Much…

Your business likely requires customized views of the data that is core to the creation of your product. Decades ago, accomplishing this involved development of large data analysis software libraries that were customized to a company’s particular needs, along with user interfaces that enabled employees to view the data, so they could respond to anomalies. […]

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How to Use MatPlotLib to Display API Performance Data

In my previous two posts, I illustrated how your team can Use cron and curl to Regularly Download API Performance Data and How to Use Python to Extract API Performance Data. In this post, I illustrate how you can use the Python MatPlotLib library to create plots of the downloaded data that will be of […]

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