Contribute
Register

Filevault encrypts really slow!!!

Joined
Jul 3, 2018
Messages
315
Motherboard
Asus P8H61-M LX
CPU
i5-2500K
Graphics
HD 3000 (Disabled) + RX470
Mac
MacBook Pro
Mobile Phone
iOS
Hey guys,
recently I turned file vault on.
But I found it encrypts really slow!!!
I have been waiting for 1 day and it still says over 1 day remaining.
and the HDD speed was reduced from 200 MB/s to 20MB/s.
Is this a kinda issue?

Thanks for helping.

Cheers,
Brian
 
Joined
Nov 1, 2018
Messages
188
Motherboard
Asus Rampage VI Extreme
CPU
i9-7980XE
Graphics
GTX 1080 TI
Mac
Mac Pro
Classic Mac
iMac
Mobile Phone
Android, iOS
Hey guys,
recently I turned file vault on.
But I found it encrypts really slow!!!
I have been waiting for 1 day and it still says over 1 day remaining.
and the HDD speed was reduced from 200 MB/s to 20MB/s.
Is this a kinda issue?

Thanks for helping.

Cheers,
Brian
Depending on your HDD, encryption could take a really really long time to work through everything and since its on an HDD you going to be waiting really long.

If you had to use an SSD then it would be extremely fast in encrypting the data although it will take some time not as long as a HDD.

Encryption takes time, do some research on encryption and the different types of algorithms that they are. You will find out how long it would take to encrypt a drive by the algorithms strength.

Each algorithm has its own time period and method since they are built differently.

Curious/\/\ac
 
Joined
Jul 3, 2018
Messages
315
Motherboard
Asus P8H61-M LX
CPU
i5-2500K
Graphics
HD 3000 (Disabled) + RX470
Mac
MacBook Pro
Mobile Phone
iOS
Depending on your HDD, encryption could take a really really long time to work through everything and since its on an HDD you going to be waiting really long.

If you had to use an SSD then it would be extremely fast in encrypting the data although it will take some time not as long as a HDD.

Encryption takes time, do some research on encryption and the different types of algorithms that they are. You will find out how long it would take to encrypt a drive by the algorithms strength.

Each algorithm has its own time period and method since they are built differently.

Curious/\/\ac
Thanks man.
 
Joined
Jul 3, 2018
Messages
315
Motherboard
Asus P8H61-M LX
CPU
i5-2500K
Graphics
HD 3000 (Disabled) + RX470
Mac
MacBook Pro
Mobile Phone
iOS
Depending on your HDD, encryption could take a really really long time to work through everything and since its on an HDD you going to be waiting really long.

If you had to use an SSD then it would be extremely fast in encrypting the data although it will take some time not as long as a HDD.

Encryption takes time, do some research on encryption and the different types of algorithms that they are. You will find out how long it would take to encrypt a drive by the algorithms strength.

Each algorithm has its own time period and method since they are built differently.

Curious/\/\ac
I got a 2 TB hard drive... So maybe it will be very slow to encrypt...
There're MANY files in the hard drive, and the computer is very slow now! Even Can't Open The System Information Window...
 
Joined
Nov 1, 2018
Messages
188
Motherboard
Asus Rampage VI Extreme
CPU
i9-7980XE
Graphics
GTX 1080 TI
Mac
Mac Pro
Classic Mac
iMac
Mobile Phone
Android, iOS
Thanks man.
It is weird that it's taking a day+ the speeds are normal since Encryption by itself is slow.

How big is your HDD ?
How much Space has been used ?
How old is the drive ?

Answered before I could ask lol

All those could be factored into the speed and duration of the encryption.

Curious/\/\ac
 
Last edited:
Joined
Oct 1, 2019
Messages
18
Motherboard
Asus B150 Pro Gaming
CPU
i7-7700K
Graphics
GTX 1080 Ti
Mac
iMac
I have the same problem here with APFS, it's ridiculously slow. I understand encryption is slow, but this is weirdly slow. Has anyone found out why yet?

Edit: I was not expecting HDD to be the reason for this extreme slowness... didn't appreciate how much SSD on my macbook was saving me a lot of time :D
 
Last edited:
Top