Does meditation increase productivity for software developers and related professions?

I'll present a counterpoint, maybe adding to what @no_comprende wrote. It's about my personal experience, and probably a consequence of not meditation alone, but also Buddhist philosophy.

After I started meditating my productivity in LoC/day lowered, and I don't solve problems faster, and not even more tasks per week are accomplished.

But in the other hand, I started to think more carefully, trying to be more aware of program states, of side effects, of bad code interactions, of unexpected use case conflicts. I started to test more, and I usually don't "turn a blind eye" to problems without taking note of it (commenting or registering a task).

Put in short, I became more defensive and I started thinking in a more attentive way. Instead of just completing more features, fixing more bugs and thinking in a rush, I began to try to be more aware of what I do.

Thankfully my bosses allow it, and seemingly they support it.

I like all the other answers (less so the one saying try two approaches to measuring your productivity, but that is my bent), and I wanted to say something else as a former software developer:

Spiritual practices are to get yourself out of the way. Pitching it to others is like saying: "here, let me help you get rid of yourself, you will feel so much better (and be more productive too!)" I realized at some point that the best I could do as a developer was to create a system for building applications that did not require programmers. I did that. Fortunately, nobody took me seriously in my quest to eliminate my own position. Eventually, my position was no longer needed and I went on to run a retreat center, then when I was no longer needed there, I went on to something else. Later, I misplaced myself, and now I feel so much better!

Are you feeling uplifted? Did I sell you on the project of making life so much better for everyone? All I can do is stand here and be an advertis*m*nt for overcoming self, but that is not a product most people will ever want. I suggest you keep your realizations to yourself (ha ha). If anyone wants to know, they will ask, as they see your face day in and out, being... nobody. And that is just fine.

I think I have addressed your "real" motivation for asking your question. Please let me know if I did not.

Many people aren't aware that software developing and programming also requires creativity when at an impasse. When I get stuck, I want to try harder to solve the problem and get it over with (almost in a forceful way) which usually makes things worse. I notice that my eyes fatigue much faster and I get a sense of generalized restlessness. My body wants me to take a break but my mind wants the problem solved.

Even if you don't have the will to meditate at this point simply getting up and doing something will work wonders. When John von Neaumann was working on the Manhattan project, the breakthrough occurred to him when he was stepping off a bus. During these ordinary moments when we are separate from the problem, we have the most freedom to solve the problem, and although just getting up from the computer may not be beneficial as sleep or extended meditation, thinking about the problem on the couch away from the computer works great. By that time you've learned enough about the problem to think about it while not physically at the computer.

I'm a software developer and practiced different kinds of meditation (first - sit for 5-10 minutes with open eyes and pay attention to inhaling and exhaling, second - 16th Karmapa meditation in the Diamond way Buddhism).

From my subjective experience I can say that (other things being equal), on average, I am more productive on days, where I do meditation in the morning than on days when I don't.

By "more productive" I mean

1. that I solve problems faster (the day of a software developer consists of making solving big and small problems/decisions) and
2. am less distracted by e-mail, Facebook etc.

Also, I have the impression that meditation in the morning allows me to better concentrate in a loud environment (i. e. I can easier focus on my work, when I'm surrounded by lot of talking people, whom I don't like). Same applies to situations, where I am exposed to stress.

Once in a while meditation (once in 3-4 weeks) leads to a productivity breakdown. This happens, when I discover some information about me (which you didn't realize/notice earlier). Usually, this information is a) embarassing (I've been doing ... wrong all my life!) and b) helpful in my development (you can only fix bugs, which you know exist - this applies to the mental hardware as well).

In my opinion, you can test the hypothesis "meditation increases my productivity" using at least two experiments:

Experiment 1: Productive time per week

1. Start tracking the time, when you are doing something useful (there are lots of fine tools out there, including those, which run on mobile devices).
2. Collect data on the average productive time for several weeks.
3. Start meditating and continue to track time.

Once you have enough data, you can use statistical methods to find out, if there is a difference in productivity and if that difference is significant.

Experiment 2: Accomplished tasks per week

1. Create a spreadsheet with 3 columns: Date, Task completed, Subjective size & complexity of the task (e. g. "small", "medium", "big").
2. Whenever you accomplish something useful during a week, add a record to that spreadsheet.
3. Gather data on your weekly productivity (in terms of number of small, medium and large tasks accomplished during a week) without meditation.
4. Do the same thing, when you regularly meditate.