In Percona Server we have a STATUS variable indicating roughly possible recovery time:
Combined size of InnoDB log files defines how many changes not reflected in the tablespace we may have where innodb_checkpoint_age shows how much changes we actually have at the current moment, being an actual driving factor of recovery time. If you have very large log files allocated but for your workload innodb_checkpoint_age stays low chances are recovery will be quick.
[ InnoDB crash recovery speed in MySQL 5.6
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