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Hi, |
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|
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On Sun, 19 Feb 2017 13:53:49 +0100 Helmut Jarausch wrote: |
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> Hi, |
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> |
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> sometime I have some memory hungry ebuilds in the background, when I |
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> start (e.g.) Chromium which needs very much memory if you have a lot of |
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> open tabs. |
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> |
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> In that case my system nearly freezes. I cannot even kill chrome. |
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> What can I do in that case. (Remote login doesn't work either) |
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> |
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> Can I have any additional program (like Chromium) die if there is not |
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> enough memory. |
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|
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1. Use reasonable -j and -l options in MAKEOPTS. A good start will |
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be -j N and -l 2*N, where N is a number of your logical cores. |
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|
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2. Set the lowest CPU and I/O priorities for emerge: |
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PORTAGE_NICENESS=19 and run emerge as `ionice -c3 emerge ...`, |
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you have to use CFQ scheduler to be able to use ionice. |
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|
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3. Use zswap with z3fold allocator. It helps me well on my laptop |
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with 2GB RAM. |
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|
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4. If everything above doesn't help: |
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a) reduce -j to a value where memory usage is suitable for you; |
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b) consider using -Os in your {C,CXX,F,FC}FLAGS, since such system |
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is certainly short of memory. |
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|
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5. If even 4. doesn't help, consider using more powerful host to |
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build binary packages for this one. |
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|
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Best regards, |
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Andrew Savchenko |
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