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On Sunday, 20 October 2019 12:59:03 BST Wols Lists wrote: |
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> Well, I do all my emerges on tmpfs, so if things like LO, firefox et al |
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> need maybe 10GB, I need at least that available ... (that said, 16GB ram |
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> could probably do it without needing swap :-) |
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Anecdotal evidence suggests 16G RAM may not be enough: |
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A number of times I was emerging chromium with USE="jumbo-build" enabled on a |
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PC with 16G RAM, while a user was running Kmail, firefox and some other apps. |
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FF in particular is a hog, as it pre-emptively allocates more RAM as you keep |
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opening more tabs. With 15-20 FF tabs open and MAKEOPTS="-j5", all RAM was |
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exhausted and swap started being used heavily by portage, thrashing the disk |
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as jobs were being swapped I/O. With no swap the emerge would have been |
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killed with an OOM. |
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> But seeing as I try to fill up my mobo ram, my disks are mirrored, and I |
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> still try and stick to the "twice ram" rule, this setup means any |
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> upgrades/changes to the computer means I don't break that rule. If it's |
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> overkill, well disk is cheap (and I can always nick a swap partition and |
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> repurpose it temporarily if needs be :-) |
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> |
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> Cheers, |
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> Wol |
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Quite, disks are cheap and having more swap won't break the bank. On PCs with |
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limited RAM I often end up adding more swap space and reducing job counts to |
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get big emerges through. |
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-- |
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Regards, |
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Mick |
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