Blackfire.io vs Keymetrics

Blackfire.io vs Keymetrics: What are the differences?

Blackfire.io: Blackfire Profiler automatically instruments your code to gather data about consumed server resources like memory, CPU time, and I/O. Blackfire achieves a new level of accuracy by aggregating several profile samples and getting rid of non relevant data. Get even deeper and review the interactions with your entire stack (SQL database engines, cache servers, ...); Keymetrics: Full Stack monitoring and app management for Node.js. PM2 is a production process manager for Node.js applications with a built-in load balancer. It allows you to keep applications alive forever, to reload them without downtime and to facilitate common system admin tasks.

Blackfire.io and Keymetrics belong to "Performance Monitoring" category of the tech stack.

Some of the features offered by Blackfire.io are:

• Profile a page at a mouse click thanks to the Blackfire web browser extension
• Browse through the function calls and identify performance bottlenecks thanks to the Blackfire intuitive UI
• Because Blackfire is only triggered when you profile a request, there is no overhead for other requests

On the other hand, Keymetrics provides the following key features:

• Process management
• CPU / Memory Monitoring
• Log facilities

"Deep insights into PHP request cycle" is the top reason why over 4 developers like Blackfire.io, while over 6 developers mention "Easy Setup" as the leading cause for choosing Keymetrics.

Keymetrics is an open source tool with 29.7K GitHub stars and 1.99K GitHub forks. Here's a link to Keymetrics's open source repository on GitHub.

Sellsuki, Publitas, and Sendhelper Pte Ltd are some of the popular companies that use Keymetrics, whereas Blackfire.io is used by Blackfire.io, Showpad, and Basharsoft. Keymetrics has a broader approval, being mentioned in 13 company stacks & 5 developers stacks; compared to Blackfire.io, which is listed in 7 company stacks and 4 developer stacks.