Conversation
hyeyoo

Hyeonggon Yoo

Since when has kernel compilation required this much RAM? My laptop with 16GiB of RAM uses tens of GBs of swap space during linkage step
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vbabka

Reply to @hyeyoo
@hyeyoo sounds like something LTO would do, but it's not there yet afaik?
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hyeyoo

Hyeonggon Yoo

Reply to @vbabka
@vbabka @sevan
No LTO (there is no GCC LTO yet afaik too),
and I guess just building debug kernel eats tons of memory

BTW GCC LTO has been maintained out of tree for a long time, but still no mainline support....
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vbabka

Reply to @hyeyoo
@hyeyoo @sevan there were some attempts by my colleagues to mainline it last year, but not done yet.
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