[FS#510] slow sysupgrade

[LEDE Bugs]

The following task has a new comment added:

FS#510 - slow sysupgrade
User who did this - Arjen de Korte (arjendekorte)

----------
The garbage collection will have to copy more data when using 64 KB erase size than if using 4 KB erase size. The copying of the data may not take much time, but then you have to erase the just reclaimed block too. This is much slower for a single 64 KB block than for a 4 KB block.
----------

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=510#comment3418