Potential addition: Run assets:precompile with lower CPU priority during capistrano deploys about rails-template HOT 4 CLOSED

I'm 👍 on doing it by default - if its stable and doesn't hugely impact the overall compile time, might as well do it 🤷

As discussed privately, we're both a bit ick on this but so long as it remains "write once" I think we can draw the line of how much Unix-ish-only stuff we've got going on at just after this.

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I submitted this to capistrano-rails on the off-chance they are keen capistrano/rails#258

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An update on this after living with it for a while:

This technically works every time but it's not always effective. We have still noticed some issues serving traffic on small (t3.medium) EC2 instances while Webpack is compiling.

We have been successful using cpulimit rather than nice but we had to compile it ourselves from https://github.com/opsengine/cpulimit to get the version which also limits child processes.

I am now doubtful that this is something we want in this template because it's use is very specific but I'll leave this issue open for a while so we can discuss it.

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I'm closing this because it's quite niche and requires a very specific setup on the server to work so is not suitable for this template

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