[Nix-dev] Making Hydra super fast (was: Security channel proposal)

2014-09-25 Thread Peter Simons
Hi Wout, Another option would be to make Hydra super fast... What has been explored to optimize compile speeds? Using distcc, ccache, SSD, elastic scaling? Hydra is appears slow because hydra-evaluator is single-threaded. A round-trip evaluating all jobsets on hydra.nixos.org takes almost

Re: [Nix-dev] Making Hydra super fast (was: Security channel proposal)

2014-09-25 Thread Wout Mertens
On Sep 25, 2014 8:19 PM, Peter Simons sim...@cryp.to wrote: Hi Wout, Another option would be to make Hydra super fast... What has been explored to optimize compile speeds? Using distcc, ccache, SSD, elastic scaling? Hydra is appears slow because hydra-evaluator is single-threaded. A

Re: [Nix-dev] Making Hydra super fast (was: Security channel proposal)

2014-09-25 Thread Paul Colomiets
Hi Peter, On Thu, Sep 25, 2014 at 9:19 PM, Peter Simons sim...@cryp.to wrote: Hydra is appears slow because hydra-evaluator is single-threaded. A round-trip evaluating all jobsets on hydra.nixos.org takes almost a day. If a commit comes in 10 minutes after 'master' was evaluated, then it takes