Re: [RFC] kbuild: bpf: Do not run pahole with -j on 32bit userspace

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 22. 08. 24, 17:24, Arnaldo Carvalho de Melo wrote:
On Thu, Aug 22, 2024 at 11:55:05AM +0800, Shung-Hsi Yu wrote:
I stumbled on this limitation as well when trying to build the kernel on
a Libre Computer rk3399-pc board with only 4GiB of RAM, there I just
created a swapfile and it managed to proceed, a bit slowly, but worked
as well.

Here, it hits the VM space limit (3 G).

Please let me know if what is in the 'next' branch of:

https://git.kernel.org/pub/scm/devel/pahole/pahole.git

Works for you, that will be extra motivation to move it to the master
branch and cut 1.28.

on 64bit (-j1):
* master: 3.706 GB
(* master + my changes: 3.559 GB)
* next: 3.157 GB

on 32bit:
 * master-j1: 2.445 GB
 * master-j16: 2.608 GB
 * master-j32: 2.811 GB
 * next-j1: 2.256 GB
 * next-j16: 2.401 GB
 * next-j32: 2.613 GB

It's definitely better. So I think it could work now, if the thread count was limited to 1 on 32bit. As building with -j10, -j20 randomly fails on random machines (32bit processes only of course). Unlike -j1.

thanks,
--
js
suse labs





[Index of Archives]     [Linux&nblp;USB Development]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite Secrets]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux