March 2018
Intermediate to advanced
244 pages
6h 10m
English
Content preview from Adopting ElixirBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Profiling
Profiling is a performance tuning technique that measures primarily the frequency and duration of function calls. Erlang/OTP ships with three profilers. cprof counts the number of invocations, eprof measures execution time, and fprof measures both frequency and time. Each has its own advantages and disadvantages. cprof runs quite fast and has a minimal impact on execution times, but doesn’t tell you as much as full execution times. On the other hand, fprof provides much more data, but expect it to impact your execution time.
Elixir provides integration with cprof, eprof, and fprof via the Mix tool. In this section, we’ll provide a quick example of using cprof and fprof.
Imagine that your load tests found one fairly slow route. After ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.