I'm musing on the performance implications of using rock store on SSD. As per my understanding the underlying filesystem is unaware of any unused blocks in the big rock file, thereby using fstrim or "discard" mount option will have no effect. Once the rock file is full, SSD io performance will degrade considerably, due to the read-earase-modify-write cycle on every rock change. Am I right in my assumptions? Best, Niki
