RE: GNU make CPU utilization in cloud environments

[Tamás Fülöp]

It is just a virtual machine in the cloud, so I do not plan to create a distributed jobs, only parrallel ones on the same host. I would like to use only 1 job / 1 host architecture. 

You are right about the CPU capacity, but the strage thing is the following. The CPU utilization is below 1% with the running make command, but file operations (like zipping files) occupies the whole CPU, so it could not be a cloud issue.

Thank you for the answer!


Best regards,

Tamas

> Subject: Re: GNU make CPU utilization in cloud environments
> From: address@hidden
> To: address@hidden; address@hidden
> Date: Wed, 17 Feb 2016 10:12:10 -0500
>
> On Wed, 2016-02-17 at 14:51 +0100, Tamás Fülöp wrote:
> > This command utilizes at least 80% of the CPU on a local machine, but
> > not in the cloud environment.
>
> Wait, I think we were not clear what you meant by "cloud environment".
>
> GNU make supports _parallel_ jobs: that is, running multiple recipes at
> the same time on the same host.
>
> GNU make does not support, at all, _distributed_ jobs: that is, running
> recipes on multiple different hosts.
>
> If by "cloud environment" you mean a set of separate servers running in
> the cloud, there is no facility for distributing build jobs across
> those in GNU make, and there has never been. If you want to improve
> build times you'll need to provision a single host with more CPU
> capacity.
>
> There are add-on tools you can use if you would like distributed
> builds, such as distcc: https://github.com/distcc/distcc However, as
> far as I'm aware they only work on Linux not Windows.
>
> Maybe someone else has pointers to distributed build capabilities that
> will work for you.