Re: GRUB LUKS support is slow?

[Adam Van Ymeren]

On December 15, 2017 5:53:15 PM EST, Mark H Weaver <address@hidden> wrote:
>address@hidden (Ludovic Courtès) writes:
>
>> I have an encrypted root.  When GRUB asks me for my passphrase, it
>takes
>> 5–10 seconds after I hit enter before it displays the menu; then,
>once
>> I’ve selected an entry, it takes another 5 seconds or so to boot.
>>
>> It’s always been this way for me (that’s on UEFI), but I’m
>sufficiently
>> annoyed to write this message today.  :-)
>>
>> Are others experiencing this as well?  Any hints?
>
>I also use a LUKS-encrypted root partition, and the same thing happens
>to me.  I would guess that the cryptographic operations in GRUB are not
>well optimized, but I haven't looked closely.
>
>      Mark

Even unoptimized 5-10s seems pretty long.  It's not like it has a lot of data 
to process.

I have an encrypted root as well, I don't think it takes 5s after I enter the 
passphrase to get the grub men, maybe 1 or 2.  Next time I reboot I'll make a 
note of it.