[SOLVED] initramfs takes too long to load
Using systemd-analyze I found out that initramfs takes too long to load:
463ms (kernel) + 11875ms (initramfs) + 6014ms (userspace) = 18353ms
My HOOKS array in mkinitcpio.conf is the following:
HOOKS="base udev autodetect modconf block encrypt lvm2 filesystems usbinput fsck"
I suspect that the long loading time of initramfs is caused by partitions decryption (I am using dm-crypt / LUKS on top of LVM).
Is there any tool that can report loading times of HOOKS seperately, just like systemd-analyze plot does for userspace?
Last edited by nasosnik (2013-01-21 14:45:28)
cfr wrote:
In what sense is it "too long"?
I'm just wondering: suppose that you find out that it is because you are using encryption. Would you then switch to a non-encrypted system? Would you make better use of the extra seconds you might save on those rare occasions when you reboot? Even if you reboot twice a day, you might save what? Suppose you would even save 5s per boot. That will give you a whole extra 1 minute and 10 seconds a week. Assuming you don't multitask. Obviously if you multitask, the gain will be less. Would that make it worth risking the security of your data?
EDIT: I didn't mean this to sound as confrontational as it does now I read it back. It just always puzzles me that people are so concerned about shaving a few milliseconds here and there. I always hope that they put the time they save to good use but then I realise that the time they spent shaving the milliseconds off will obviously outstrip the time saved.
I really don't care about the boot time because of the reasons you have already mentioned. I just want to figure out if there is any misconfiguration. I am just investigating why initramfs takes significant longer to load compared with my desktop Arch installation (non-encrypted) 1316ms for initramfs. My desktop has a Pentium 4 CPU and laptop has a quad-core i7.
roentgen wrote:11875ms (initramfs) means the time it takes you to type the password.
systemd-analyze is not counting the time is spent to type the password.
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