Disqus - Latest Comments for ariejan

Re: My home lab server with 20 cores / 40 threads and 128 GB memory

Ariejan de Vroom — Wed, 14 Aug 2019 14:10:40 -0000

I like how you've used an IKEA Lack table as your 19" rack :-)

Re: 5 practical Ruby on Rails projects

Ariejan de Vroom — Wed, 02 Dec 2015 05:07:14 -0000

So, basically, you can build web apps with Rails. What a surprise.

Re: ariejan de vroom

Ariejan de Vroom — Fri, 27 Nov 2015 07:31:08 -0000

♥️

Re: Rails migrations: decimal precision and scale

Ariejan de Vroom — Fri, 27 Nov 2015 07:23:44 -0000

Huzzah!

https://ariejan.net/2015/11...

Re: Rails migrations: decimal precision and scale

Ariejan de Vroom — Fri, 27 Nov 2015 06:15:44 -0000

Yes, you can. I'll write a post about that right now :-)

Re: ariejan de vroom

Ariejan de Vroom — Tue, 13 Oct 2015 08:53:01 -0000

I've made some updates to this post, read theme here: https://ariejan.net/2015/10...

Included are getting rid of the Buildtime and instead use a git commit hash.

Re: 5 Command Line Tools You Should Be Using

Ariejan de Vroom — Mon, 31 Aug 2015 10:00:09 -0000

But, nevermind. At least you're not using emacs, right? :-)

Re: 5 Command Line Tools You Should Be Using

Ariejan de Vroom — Mon, 31 Aug 2015 09:59:54 -0000

That's just regular Vim - although a custom build ;-)
MacVim itself is the GUI wrapper that lets it act as a regular OS X app.

Re: 5 Command Line Tools You Should Be Using

Ariejan de Vroom — Mon, 31 Aug 2015 09:46:15 -0000

MacVim does not run in iTerm2 on OS X. That's the whole point of MacVim.

Re: Why I dropped fish in favour of Zsh

Ariejan de Vroom — Wed, 05 Aug 2015 15:38:07 -0000

When I wrote this (and still today) oh-my-zsh adds tons of plugins and stuff that slows down zsh - sometimes to a point where it interrupts with your flow.

Re: Managing Virtual Teams: How we built and manage a successful remote company

Ariejan de Vroom — Mon, 27 Jul 2015 17:13:30 -0000

I think you hit a fundamental issue right on the head here. Writing software is not a production job. It's not like assembling a car or building a house. Programming is a creative process, like architecture or writing. It's about creating something from scratch, changing and fine-tuning as you go, making revisions. Any attempt to quantify that process is madness - but managers insist to fill their Excel sheets.

You can measure me, as a developer, by two things: the business value I deliver and the happiness of the end-user using my software. Both are not very hard to measure and optimizing for a short release and feedback cycle will get you metrics quickly and consistently.

Re: Managing Virtual Teams: How we built and manage a successful remote company

Ariejan de Vroom — Mon, 27 Jul 2015 17:03:00 -0000

Trust and accountability go hand in hand. IMHO accountability is not someone else taking screenshots of my screen every 10 minutes. Measuring how active a developer is or what sites he's visiting is non-sense. 80% of my work is thinking about design and abstractions - which happens in my head. 20% is the actual typing of code.

Communication should be able to happen all the time - it does not _need_ to happen all them. Tools like good 'ole IRC or Slack are great for that. It allows people to quickly connect, see their online presence and get things done.

Re: Managing Virtual Teams: How we built and manage a successful remote company

Ariejan de Vroom — Mon, 27 Jul 2015 16:39:35 -0000

The one thing that is absolutely essential in working remotely is trust (from both sides). I never read that word once in this article. Worse, on the one hand you say "judge work by work done", but on the other hand you don't trust your remote workers and want to use spying tools to keep an eye on them. The key is: have an online presence (now people are there), have almost constant communication about what's going on and address issues when they arise - in person.

Re: ariejan de vroom

Ariejan de Vroom — Wed, 22 Jul 2015 03:48:03 -0000

No.

Re: How to install MySQL on Ubuntu/Debian

Ariejan de Vroom — Fri, 12 Jun 2015 05:27:45 -0000

I have no idea what's really going on, but googling the error messages points me to http://askubuntu.com/questi... - maybe that can help you out?

Re: Rails Tip Snippet: Create a comma-seperate list

Ariejan de Vroom — Tue, 02 Jun 2015 03:03:01 -0000

I beg to differ. You must write Perl a lot. :-)

Re: Rails Tip Snippet: Create a comma-seperate list

Ariejan de Vroom — Tue, 02 Jun 2015 03:00:28 -0000

How is that relevant? As long as your code reveals its intent, it's fine to use either one of them.

Re: Rails Tip Snippet: Create a comma-seperate list

Ariejan de Vroom — Tue, 02 Jun 2015 01:50:13 -0000

`#map` and `#collect` are the same in Ruby's `Enumerable` module.

Re: How to force data to be downloaded as a file from your Rails app

Ariejan de Vroom — Thu, 14 May 2015 11:58:07 -0000

Meh. Something messes up the quotes here.. Replacing the single and double quotes with actual ' and " quotes on lines 44-45 should fix your problem.

Re: How to force data to be downloaded as a file from your Rails app

Ariejan de Vroom — Thu, 14 May 2015 03:14:41 -0000

Seems like a typo somewhere. Could you post your entire controller code to something like https://gist.github.com and email me the link. I'll have a look.

Re: ariejan de vroom

Ariejan de Vroom — Wed, 08 Apr 2015 06:08:31 -0000

Thanks! I've updated the link.

Re: RSpec speed-up (24.6%) by tweaking ruby garbage collection - Ariejan.net

Ariejan de Vroom — Mon, 02 Mar 2015 05:01:07 -0000

The patch from this posts improves GC performance by tweaking some GC settings. Ruby 2.2 has seen a lot of improvements on GC. This patch still works, but GC has become so much better that the improvement is minimal (and in some cases negligible).

If your specs are still slow on 2.2, you should probably look at other causes than GC. For instance, are you instantiating / creating a lot of models / database records?

Re: GPG Sign Your Git Commits — ariejan de vroom

Ariejan de Vroom — Wed, 18 Feb 2015 03:15:03 -0000

It's called "HandCrafted HTML" ;-)

Re: 0 – 24 Volt, 2 Amp Bench Top Power Supply

Ariejan de Vroom — Thu, 05 Feb 2015 10:30:00 -0000

1. The transformer outputs 24VAC. You cannot compare 24VAC to 24VDC directly. So, the 24VAC from the transformer is called 'Vrms' (google it). Basically, you can get the DC equivalent by multiplying the Vrms by the square root of 2, which is about 1.41. 24 x 1.41 = 33.8V DC.

3. True, the LM317 has an 1.25V offset. You can work around this, but it gets complicated fast.

Re: RSpec speed-up (24.6%) by tweaking ruby garbage collection - Ariejan.net

Ariejan de Vroom — Wed, 04 Feb 2015 11:00:14 -0000

Memory consumption is not really an issue unless your hardware is very limited (but then you'd have issue already). Remember that your tests are not a continuously running process. Every time your test suite completes, the process is killed and all memory released.