Prewarming EBS Volume

Is there any other way to prewarm the PIOPS EBS volume other than using following command?

sudo dd if=/dev/xvdf of=/dev/null bs=1M

Above command seems to take longer period of time as the size of EBS vol increase.

So In my case ideally, I want to create a volume using my snapshots and with minimum downtime I want to use that volume as my mysql data directory but before that I want to prewarm it. If there is a way to fast the process, that'd be great. However we are not challenged on hardware front we can take as bigger machine as required on AWS.