| 1 |
I can't be sure whether these links will help, but there were conversations. |
| 2 |
|
| 3 |
https://forums.gentoo.org/viewtopic-t-866779-start-0.html |
| 4 |
https://www.reddit.com/r/Gentoo/comments/68psrz/why_does_emerge_calculate_dependencies_on_a/ |
| 5 |
|
| 6 |
On Fri, Dec 13, 2019 at 6:44 AM Dale <rdalek1967@×××××.com> wrote: |
| 7 |
> |
| 8 |
> james wrote: |
| 9 |
> > On 12/9/19 1:31 AM, Dale wrote: |
| 10 |
> >> Howdy, |
| 11 |
> >> |
| 12 |
> > |
| 13 |
> >> I'm sure trying to get portage to do things in parallel would be a |
| 14 |
> >> programmers nightmare.� It may not even be doable given how the |
| 15 |
> >> tree is |
| 16 |
> >> done or that the complexity of calculating all the options is just to |
| 17 |
> >> much to run in parallel. |
| 18 |
> > |
| 19 |
> > Hello Dale, |
| 20 |
> > |
| 21 |
> > Not sure this is what you are looking for, but it's pretty easy to set |
| 22 |
> > up. |
| 23 |
> > |
| 24 |
> > |
| 25 |
> > in my /etc/make.conf file I have this:: |
| 26 |
> > |
| 27 |
> > |
| 28 |
> > MAKEOPTS="-j7 -l8" |
| 29 |
> > |
| 30 |
> > |
| 31 |
> > so it does what you are looking for on larger upgrades. Some files |
| 32 |
> > that do not compile properly, auto limit to one core. My understanding |
| 33 |
> > is there are a variety of mechanism to achieve this. |
| 34 |
> > |
| 35 |
> > The kernel version/setting surely has more options, but they are |
| 36 |
> > optimized according to the types of workloads and the scheduler you |
| 37 |
> > have selected. YOU or anyone can waist weeks and months going down |
| 38 |
> > that pathway. |
| 39 |
> > |
| 40 |
> > Then there are mechanisms to further refine how your system works. |
| 41 |
> > |
| 42 |
> > |
| 43 |
> > It's a wide open area so read up a bit and find your comfort level. |
| 44 |
> > |
| 45 |
> > |
| 46 |
> > hth, |
| 47 |
> > James |
| 48 |
> > |
| 49 |
> > |
| 50 |
> |
| 51 |
> |
| 52 |
> I have that type of setting already. What I was talking about is when |
| 53 |
> you do a emerge -uaDN world and it is calculating what packages needs |
| 54 |
> updating. When it is doing that, it only uses one core, thread I guess |
| 55 |
> for those who have threads, which means having a multi-core CPU doesn't |
| 56 |
> help speed things up. Basically, my question was about the emerge |
| 57 |
> command itself not when it is actually compiling packages. |
| 58 |
> |
| 59 |
> I read where it was discussed on -dev a couple years or so ago. I'm not |
| 60 |
> a coder but from what I could understand, it sounded really complicated |
| 61 |
> to have the emerge command able to run calculations in parallel. It |
| 62 |
> seems there is a couple things that just can not be done that way. |
| 63 |
> |
| 64 |
> Maybe one day. Just maybe. |
| 65 |
> |
| 66 |
> Dale |
| 67 |
> |
| 68 |
> :-) :-) |
| 69 |
> |
| 70 |
|
| 71 |
|
| 72 |
-- |
| 73 |
WooHyung Jeon. |
Archives