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SignalFx
SignalFx

17
31
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10
Skylight
Skylight

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

Developers describe SignalFx as "Monitoring and Operational Intelligence for the Cloud". We provide operational intelligence for today鈥檚 elastic architectures through monitoring specifically designed for microservices and containers with: -powerful and proactive alerting -metrics aggregation -visualization into time series data. 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.

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

Some of the features offered by SignalFx are:

  • Beautiful streaming visualizations
  • Meaningful, fast alerting using SignalFlow analytics
  • High resolution metrics up to 1 sec

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鈥攊n your production environment
  • Pricing starts at $20 for the first million requests, with automatic discounts for high-volume customers

According to the StackShare community, Skylight has a broader approval, being mentioned in 39 company stacks & 5 developers stacks; compared to SignalFx, which is listed in 4 company stacks and 3 developer stacks.

- No public GitHub repository available -
- No public GitHub repository available -

What is SignalFx?

We provide operational intelligence for today鈥檚 elastic architectures through monitoring specifically designed for microservices and containers with: -powerful and proactive alerting -metrics aggregation -visualization into time series data

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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Why do developers choose SignalFx?
Why do developers choose Skylight?

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      What are some alternatives to SignalFx and Skylight?
      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!
      Prometheus
      Prometheus is a systems and service monitoring system. It collects metrics from configured targets at given intervals, evaluates rule expressions, displays the results, and can trigger alerts if some condition is observed to be true.
      Splunk
      Splunk Inc. provides the leading platform for Operational Intelligence. Customers use Splunk to search, monitor, analyze and visualize machine data.
      Zipkin
      It helps gather timing data needed to troubleshoot latency problems in service architectures. Features include both the collection and lookup of this data.
      Sumo Logic
      Cloud-based machine data analytics platform that enables companies to proactively identify availability and performance issues in their infrastructure, improve their security posture and enhance application rollouts. Companies using Sumo Logic reduce their mean-time-to-resolution by 50% and can save hundreds of thousands of dollars, annually. Customers include Netflix, Medallia, Orange, and GoGo Inflight.
      See all alternatives
      Decisions about SignalFx and Skylight
      Jerome Dalbert
      Jerome Dalbert
      Senior Backend Engineer at StackShare | 3 upvotes 37.5K views
      atStackShareStackShare
      Slack
      Slack
      Pingdom
      Pingdom
      Rails
      Rails
      Skylight
      Skylight
      New Relic
      New Relic
      Heroku
      Heroku

      We currently monitor performance with the following tools:

      1. Heroku Metrics: our main app is Hosted on Heroku, so it is the best place to get quick server metrics like memory usage, load averages, or response times.
      2. Good old New Relic for detailed general metrics, including transaction times.
      3. Skylight for more specific Rails Controller#action transaction times. Navigating those timings is much better than with New Relic, as you get a clear full breakdown of everything that happens for a given request.

      Skylight offers better Rails performance insights, so why use New Relic? Because it does frontend monitoring, while Skylight doesn't. Now that we have a separate frontend app though, our frontend engineers are looking into more specialized frontend monitoring solutions.

      Finally, if one of our apps go down, Pingdom alerts us on Slack and texts some of us.

      See more
      Interest over time
      Reviews of SignalFx 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 SignalFx 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鈥檛 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鈥檛 a server issue.

      So that meant it was an application issue. New Relic wasn鈥檛 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鈥檛 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鈥檛 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 SignalFx
      SignalFx uses SignalFxSignalFx

      We use SignalFx to monitor all of SignalFx.. that include the entire stack from core services like Cassandra and AWS EC2 up through custom application metrics from SignalFx itself.

      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.

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