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
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