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On 24/01/15 13:23, Daniel Frey wrote: |
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> On 01/23/2015 08:20 PM, Meino.Cramer@×××.de wrote: |
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>> Hi, |
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>> |
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>> for my embedded systems I use gentoo. Their "harddisk"s are simple |
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>> microSDcards. |
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>> |
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>> When updateing or emerging especially the "Calculation |
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>> dependencies..." is a step which needs a lot of patience of the |
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>> user (me ;). |
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> |
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> I have a QX9650 and it can be a few minutes on mine, especially on a |
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> world update. My slower CPUs (Celerons) can take more than five minutes, |
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> I don't even want to think about embedded. |
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> |
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>> Is there any way to make it faster or (in other words): Are there |
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>> different ways to "Calculating dependencies..." and have only chossen |
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>> the slowest one...? |
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> |
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> I'd be interested as well to know as well. It used to be it did a simple |
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> dependency check and installed packages - then revdep-rebuild could |
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> check for packages that need rebuilds. |
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> |
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> It's not really an issue if you only run emerge once, but if you have to |
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> do it several times in one session it gets old really quick. It reminds |
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> me of waiting for Windows XP checking for updates. Just give it a half |
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> hour, it'll figure it out. :-( |
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> |
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> Dan |
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> |
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distcc can make a big difference on slow machines where you have 3 or so |
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hosts to throw jobs at. |
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ccache in particular speeds up multiple passes at an emerge. |
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Downside is a few packages cant use ccache and exhibit seemingly random |
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failures to compile but if known they can be excluded using a portage |
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setting. |
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BillK |
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