> If you're running the tests for multiple minutes and many tens of GBs at > a time, then this slowdown is due to garbage collection, not stripe > cache sizing. You are right. I wrote about that in another post. > > You are not performing proper testing methodologies, and you're jumping > to conclusions way too quickly, and likely incorrectly. See above. > > If you're not familiar with SSD garbage collection then you must learn > about it. It will affect everything you do with SSDs, especially when > doing these kinds of tests where you're writing huge amounts of data to > the flash cells. Wear leveling, part of garbage collection, > dramatically slows down SSD throughput. And when you're pushing this > much data, TRIM won't help. It'll actually slow the SDDs down even more. In a shortage of time i was to fast .. I'm sorry for the trouble but at least some people and i could learn something about md :) Peter -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
