Re: guix pull parallelism

2016-08-13 Thread Vincent Legoll
Hello

> If it had been ~100% or ~300% I would not have asked, but that
> 200% looks wrong one (missed a core) way or the other (no
> parallelism)...

OK I looked more into this, and now I'm seeing parts that are 1 CPU,
but the bulk is between 250% and 280%, so I think it's OK for a 3 CPU
VM. Disregard my previous observations.

-- 
Vincent Legoll



guix pull parallelism

2016-08-12 Thread Vincent Legoll
Hello,

it does look like some parts of "guix pull" are parallelized
as I was seeing guix-daemon's child guile take 200% CPU during :

loading... 23.5% of 511 filesrandom seed for tests: 1471011793
loading... 99.8% of 511 files
compiling... 99.6% of 511 files

So far so good, nice to use those cores that would stay idle.

But...

$ grep -c ^processor /proc/cpuinfo
3

So why is that not a ~300% is there only parallelism for 2 threads,
or is it an unintended side effect and there is no parallelism ?

If it had been ~100% or ~300% I would not have asked, but that
200% looks wrong one (missed a core) way or the other (no
parallelism)...

Thanks for feeding my curiosity...

-- 
Vincent Legoll