On 21/04/10 05:47 PM, Greg Freemyer wrote:
The ATA-8 spec. supports vectored trims and requires a minimum of 255 sectors worth of range payload be supported. That equates to a single trim being able to trim thousands of ranges in one command. Mark Lord has benchmarked in found a vectored trim to be drastically faster than calling trim individually for each of those ranges.
.. Does anyone have an Intel-based SSD they could spare? :) Rumour has it they they do not comply with the ATA-8 spec for TRIM, in that they don't support more than one "sector" of range data. The SSDs I have here all support much more than that. Still, even if we just do a single 512-byte payload of TRIM ranges, it would be a huge win. Cheers -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
