Re: Slow loading and GRUB work after commit 938c3760b

[jim945]

12.09.2022 05:15, Gary Lin пишет:

> On Sat, Sep 10, 2022 at 09:33:47AM +0300, jim945 via Grub-devel wrote:
> > Hi,
> >
> > I am compiling grubx64.efi with modulescpio exfat ext2 fat gzio iso9660
> > loopback lzopio newc normal ntfs part_gpt part_msdos probe read search tar
> > test configfile echo xzio squash4 sfs memdisk
> >
> > The prefix is stored in the sfs container.
> >
> > After applying patch 938c3760b, the boot time before the menu appears
> > reaches 15-20 minutes. The work is very slow.
> >
> > And in Qemu this problem does not appear.
> >       
> Sounds a similar problem discussed in another thread.
> https://lists.gnu.org/archive/html/grub-devel/2022-09/msg00005.html
>
> Maybe you could try to increase DEFAULT_HEAP_SIZE to 0x2000000 or some
> other larger value and see if the loadiing time is improved or not.
> https://git.savannah.gnu.org/cgit/grub.git/tree/grub-core/kern/efi/mm.c#n42
>
> Gary Lin
>

This fix reduces the time before the menu appears to 8-10 minutes.

If important. The size grubx64.efi - 604K, prefix.sfs - 2M