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Home perl Migrating To async/await (part 3) Things to consider when rewriting code to use the new async/await syntax provided by Future::AsyncAwait. In part 2 we looked at how to rewrite code using Future::Utils::repeat, into using the neater async/await syntax provided by Future::AsyncAwait. Now we'll Paul Evans Paul Evans 20 Jun 2019 • 2 min read perl Migrating To async/await (part 2) Things to consider when rewriting code to use the new async/await syntax provided by Future::AsyncAwait. In part 1 we looked at how to rewrite code that previously used plain Future on its own for sequencing operations, into using the neater async/await Paul Evans Paul Evans 19 Jun 2019 • 3 min read perl Migrating To async/await (part 1) Things to consider when rewriting code to use the new async/await syntax provided by Future::AsyncAwait. The Future class provides basic asynchronous future functionality, and also a number of handy building-blocks for building larger code structures into meaningful programs. With the addition of Paul Evans Paul Evans 18 Jun 2019 • 4 min read Future Awaiting The Future (part 2) A further look at Future::AsyncAwait, where it will go next and how we should be using it. In the previous part, I introduced the Future::AsyncAwait module, which adds the async and await pair of keywords. These help us to write many forms Paul Evans Paul Evans 28 Mar 2019 • 5 min read Future Awaiting The Future (part 1) Overview of a new syntax module for managing Future-based code IntroductionAt Binary, we have an increasing amount of code that uses Futures to represent asynchronous operations. The power of these objects comes with the increased complexity of writing readable code that makes use of Paul Evans Paul Evans 26 Mar 2019 • 3 min read Devel::MAT Differential Memory Leak Analysis with Devel::MAT A look at a slow memory growth case and how recently-added features in Devel::MAT version 0.38 can help get to the bottom of it. Slow Growth Over Time Given a process that grows a small amount of memory over time, it can Paul Evans Paul Evans 2 Aug 2018 • 5 min read perl Perl improvements - going from 5.14 to 5.24 Many things changed between Perl 5.14 to 5.24. Here's a brief overview of what to expect. Tom Molesworth Tom Molesworth 24 Jul 2018 • 5 min read perl A Catchy Way to Handle Failure (part 1) A two-part look at failure handling in Perl Lets face it - failures sometimes happen. However well-laid our plans might be, there are times when the universe conspires against us, and we don't achieve the desired result. This is just as true for the Paul Evans Paul Evans 20 Apr 2018 • 4 min read perl Unit Testing Asynchronous Code How writing asynchronous code using Futures can help simplify unit testing Well-tested code is always prefered over something that has no tests, as with more tests we can be more confident that the code actually does what we want it to. Within the realm Paul Evans Paul Evans 21 Mar 2018 • 6 min read KVM Virtualisation in Debian 9 (Stretch) Install KVM in Debian 9 Installing the KVM packages sudo apt install -y qemu-kvm libvirt0 virt-manager bridge-utils Reboot system sudo reboot Add user to libvirt group so user can run commands sudo gpasswd libvirt -a najibul Create ISO Directory $ sudo mkdir /var/lib/libvirt/ Najib Najib 5 Feb 2018 • 1 min read perl Future Caching Tricks Caching the results of Future-returning functions Often when making read requests or queries to some external service, it is helpful to cache the results of these queries so that other requests for the same information can use that directly, rather than having to repeat Paul Evans Paul Evans 12 Jan 2018 • 3 min read perl One Thing At A Time Limiting Concurrency in Future-based Programming Sometimes a Future-based program needs to actively avoid concurrency in one specific way or area, and ensure that only one instance of a given operation is outstanding at any one time. While the program as a whole can make Paul Evans Paul Evans 8 Dec 2017 • 3 min read Parallel query without parallel query One of the key improvements in Postgres 9.6 has been the ability to distribute a query to multiple worker processes. Yet, with a few tricks this has been feasible almost forever at least for the really heavy stuff. I prefer to keep the Torsten Förtsch Torsten Förtsch 7 Dec 2017 • 7 min read cryptocurrency How and why we implemented our own crypto cashier? Architecture overview and reasoning behind implementation of Binary.com crypto cashier. Raunak Kathuria Raunak Kathuria 15 Nov 2017 • 3 min read An ERC20 securities token Binary.com will be performing an ICO from 15 November to 25 December 2017, offering up to 10 million tokens which offer two exclusive rights: (1) the right to receive Jean-Yves Sireau Jean-Yves Sireau 6 Nov 2017 • 4 min read perl A Sense of Closure A discussion came up the other day on the subject of how best to structure a certain piece of code, involving an IO::Async timer. The code in question was Paul Evans Paul Evans 3 Nov 2017 • 5 min read Lock contention in Postgres At binary.com, our clients can trade in binary options. We keep all the related information in a PostgreSQL database. The life cycle of such an option begins when it Torsten Förtsch Torsten Förtsch 29 Oct 2017 • 6 min read PostgreSQL: How to use EXPLAIN output in SQL? Sometimes you want to process the EXPLAIN output in SQL. Unfortunately, EXPLAIN itself does not offer that option. However, there are tricks... Wrapping EXPLAIN in a function This is probably Torsten Förtsch Torsten Förtsch 29 Oct 2017 • 1 min read Devel::MAT Tracing Perl memory leaks with Devel::MAT, part 2 In the previous article we took a first look at how to use Devel::MAT to help find the reason why a perl process kept using more and more memory. Paul Evans Paul Evans 20 Oct 2017 • 7 min read Devel::MAT Tracing Perl memory leaks with Devel::MAT, part 1 The `Devel::MAT` ecosystem allows developers of perl programs to inspect and analyse memory-related problems such as memory leaks, unexpected memory consumption, or odd state. Paul Evans Paul Evans 13 Oct 2017 • 8 min read Using Google Adwords ROAS bidding At Binary.com we like Adwords' ROAS (Return on Ad Spend) bidding method as we believe it provides the best way to obtain the highest return on investment on Adwords Jean-Yves Sireau Jean-Yves Sireau 10 Oct 2017 • 4 min read Home © 2020 Latest Posts Ghost...