On Fri, 14 Mar 2014 15:57:41 -0400, Martin K. Petersen wrote: > So right now I'm afraid we don't have a good way for a user to determine > whether a device supports queued trims or not.
Mount with discard, unpack kernel tree, sync, rm -rf tree. If it takes several seconds, you have sync discard, no? This changed somewhere around kernel 3.8.x; before that it used to be acceptably fast. Since then I only do batch trims, daily (server) or weekly (laptop). -h -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html