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Inspeqtor
Inspeqtor

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1
Skylight
Skylight

82
43
+ 1
51
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Inspeqtor vs Skylight: What are the differences?

Developers describe Inspeqtor as "Easy application infrastructure monitoring". Inspeqtor monitors your application infrastructure. It gathers and verifies key metrics from all the moving parts in your application and alerts you when something looks wrong. It understands the application deployment workflow so it won't bother you during a deploy. On the other hand, Skylight is detailed as "The smart profiler for your Rails apps". Skylight is a smart profiler for your Rails apps that visualizes request performance across all of your servers.

Inspeqtor and Skylight belong to "Performance Monitoring" category of the tech stack.

Some of the features offered by Inspeqtor are:

  • Monitor init.d-, systemd-, upstart-, runit- or launchd-managed services
  • Monitor process memory and CPU usage
  • Monitor daemon-specific metrics (e.g. redis, memcached, mysql, nginx...)

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

  • Skylight looks at how your code is behaving in production, alerting you to improvements you can make before they become showstoppers.
  • Skylight tells you exactly how your app is spending its time where it matters most—in your production environment
  • Pricing starts at $20 for the first million requests, with automatic discounts for high-volume customers

Inspeqtor is an open source tool with 1.63K GitHub stars and 73 GitHub forks. Here's a link to Inspeqtor's open source repository on GitHub.

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What is Inspeqtor?

Inspeqtor monitors your application infrastructure. It gathers and verifies key metrics from all the moving parts in your application and alerts you when something looks wrong. It understands the application deployment workflow so it won't bother you during a deploy.

What is Skylight?

Skylight is a smart profiler for your Rails apps that visualizes request performance across all of your servers.
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        What are some alternatives to Inspeqtor and Skylight?
        Monit
        It can monitor and manage distributed computer systems, conduct automatic maintenance and repair and execute meaningful causal actions in error situations.
        New Relic
        New Relic is the all-in-one web application performance tool that lets you see performance from the end user experience, through servers, and down to the line of application code.
        Datadog
        Datadog is the leading service for cloud-scale monitoring. It is used by IT, operations, and development teams who build and operate applications that run on dynamic or hybrid cloud infrastructure. Start monitoring in minutes with Datadog!
        ruxit
        Ruxit is a all-in-one performance monitoring solution for cloud natives. In under five minutes customizable dashboard views show you your application's performance data.
        Librato
        Librato provides a complete solution for monitoring and understanding the metrics that impact your business at all levels of the stack. We provide everything you need to visualize, analyze, and actively alert on the metrics that matter to you.
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        Decisions about Inspeqtor and Skylight
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        Reviews of Inspeqtor and Skylight
        Review ofSkylightSkylight

        If you follow the registration flow you end up with running analytics virtually in a minute. Awesome first experience.

        I don't have my application in production so I needed to enable skylight in development, but Skylight navigated me nicely to the exact paragraph of a documentation, which helped.

        How developers use Inspeqtor and Skylight
        Avatar of StackShare
        StackShare uses SkylightSkylight

        When we were facing performance issues with the new StackShare app. We originally thought it was a server issue. So we did quite a bit of research to see how many dynos we should be using for the sort of application we have and traffic profile. We couldn’t find anything useful online so I ended up asking my buddy Alain over at BlockScore. After a quick convo with him, I knew we should be totally fine with just 2 dynos.

        We also tested the theory by increasing the number of dynos and running the load tests. They had little to no effect on error rate, so this also confirmed that it wasn’t a server issue.

        So that meant it was an application issue. New Relic wasn’t any help. I spoke with another friend who suggested we use a profiler. We totally should have been using one all along. We added mini-profiler, which was great for identifying slow queries and overall page load times. We also had the Rails Chrome extension so we could see how long view rendering was taking. So we cleaned up the slowest queries.

        We tried to use mini-profiler in production on the new StackShare app and for some reason, we couldn’t get it to work. We were in a time crunch so I asked Alain what they used and he said that they use Skylight in production. Funny enough, I remembered the name Skylight because we listed it on the site a while back. So we did that, and at first we couldn’t really see how it was useful. Then we realized what we were seeing were a ton of repeat queries on some of the pages we load tested.

        Skylight is cool because it sort of gives you the full MVC profile. We were able to pinpoint specific db queries that being repeated. So we cleaned those up pretty quickly. But then we noticed the views were taking up all the load time, so we start implementing caching more aggressively. After we cleaned up the db queries and added more caching, our pages went from this: skylight1 to this: skylight2

        Skylight ended up being super useful. We use it in production now.

        Avatar of Hund
        Hund uses SkylightSkylight

        An essential for determining production performance. It provides us with clear insights into what might be slowing down responses so we know exactly what to fix.

        How much does Inspeqtor cost?
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