Multi-threaded emerge, how about it eh?

[domhowells]

OK, i began thinking about this while installing gentoo on my new laptop.

I have a fairly fast processor (XP 1900+), and a fairly slow internet connection (56K). When I do an emerge with dependencies (i.e. where emerge installs prog1, prog2, prog3). The way it does it is this:

Download prog1
Compile + Install prog1
Download prog2
Compile + Install prog2
Download prog3
Compile + Install prog3

No as complile+install and download stages have almost no system resource use in common it would make sense to rund them in parallel, like:
Download: Prog1...........Prog2.......Prog3................................Idle........
Compile: Idle................Prog1.....................Prog2....Idle........Prog3.....

I tried to implement this amatur stylee, by doing:
'emerge --fetchonly system' at the same time as 'emerge system'

It worked well untill the comlile thread was idle and the download thread wasnt at which time the compile thread started to download at the same time, and I ended up with file corruption.

Any thoughts.?

D.
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Dom 'Ace' Howells

[masseya]

You can always submit a feature request for something like this on https://bugs.gentoo.org, but you should also always search first. I think this is the most duplicated bug on bugs.gentoo.org. Here's the original.
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