[Bug ld/22831] ld causes massive thrashing if object files are not fully memory-resident: new algorithm needed

[lkcl at lkcl dot net]

https://sourceware.org/bugzilla/show_bug.cgi?id=22831

--- Comment #4 from Luke Kenneth Casson Leighton <lkcl at lkcl dot net> ---
(In reply to H.J. Lu from comment #3)
> Please try users/hjl/pr18028 branch at
> 
> https://github.com/hjl-tools/binutils-gdb

hi hjl, i will point some people at this, it may be some time
as one of them is the debian-riscv team, they may be maintaining
special patches so it might not be as straightforward as just
cloning the above branch.

others severely affected include armhf systems (max 2GB RAM, 32-bit)
and i note that the patch from a couple of days ago mentions
"enabled by default on x86", is that correct?  what options would
be needed to try this out?

also i note from the patch commit message it says "change maximum
page size", how would that stop severe / critical thrashing?  how
would it reduce memory usage to only that which is available on
the actual system (like when gcc performs compiles, it only uses
available memory)?

did i miss something?  is there another patch in that branch which
i did not see?

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