On Fri, Aug 14, 2009 at 05:21:32PM -0600, Chris Worley wrote: > Sooner is better than waiting to coalesce. The longer an LBA is > inactive, the better for any management scheme. If you wait until > it's reused, you might as well forgo the advantages of TRIM/UNMAP. If > a the controller wants to coalesce, let it coalesce. I'm sorry, you're wrong. There is a tradeoff point, and it's different for each drive model. Sending down a steady stream of tiny TRIMs is going to give terrible performance. -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html