One thing that will totally kill MBP batter performance is if the system
decides do kick over to dedicated graphics. I highly recommend this app:
http://gfx.io/ It'll put an icon in the top right of your screen that shows
which GFX card is in use. On my 2012 MBP I get about 6 hours of life on the
integrated graphics and about 1.5 on heavy use with the dedicated graphics.

Now this all may sound like nonsense until you realize that LightTable is
based on Webkit and that the entire UI is rendered via a combination of Web
DOMs and Canvas objects. 9/10 times, a website using canvas will kick my
machine into dedicated GFX mode.

I wouldn't be surprised at all to see that a different editor would
dramatically improve battery life. On my MBP running Emacs LIVE (which has
never been accused of being light on CPU usage), I can get about 4-5 hours
of Clojure development before needing to plug in.

Hope this helps,

Timothy Baldridge


On Sun, Jan 19, 2014 at 7:52 PM, gvim <gvi...@gmail.com> wrote:

> Is it likely that a typical Clojure development environment:
>
> - LightTable instarepl
> - Luminus web app running within `lein ring server`
>
> .... will consume significantly more battery power than a typical Rails
> environment:
>
> - Vim
> - Rails app running within `rail server`
>
> It's just that I've noticed my new-ish Macbook Pro doesn't last as long
> per charge as before I started development with Clojure and LightTable. I'm
> aware that the JVM allocates significantly more RAM by default and
> LightTable is RAM-hungry but I'm wondering if that implies increased power
> consumption? I'm on Mountain Lion so don't have the new Activity Monitor
> feature for checking this.
>
> gvim
>
>
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zero–they had no way to indicate successful termination of their C
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