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Code Issues Releases Activity

EC2: Set entropy_efi_seed_size to 64

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This dramatically improves boot speeds on Graviton 2 instances.

MFC after:	1 week
Sponsored by:	Amazon
Differential Revision:	https://reviews.freebsd.org/D46636
This commit is contained in:
Colin Percival 2024-09-18 04:02:15 -07:00
parent c8ebbd28aa
commit 714a6d4368
1 changed files with 4 additions and 0 deletions
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4
release/tools/ec2.conf
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@ -38,6 +38,10 @@ ec2_common() {
echo 'autoboot_delay="-1"' >> ${DESTDIR}/boot/loader.conf
echo 'beastie_disable="YES"' >> ${DESTDIR}/boot/loader.conf
# The EFI RNG on Graviton 2 is particularly slow if we ask for the
# default 2048 bytes of entropy; ask for 64 bytes instead.
echo 'entropy_efi_seed_size="64"' >> ${DESTDIR}/boot/loader.conf
# Tell gptboot not to wait 3 seconds for a keypress which will
# never arrive.
printf -- "-n\n" > ${DESTDIR}/boot.config