Hi Shane, >> Can this bit be ignored/overwritten by the driver in theory? > I'm not quite sure, but anyway driver should not ignore/overwrite > it to modify the platform's policy, which was decided by OEM and > verified. We don't know any regression issue either. I understand the reasoning, just want to make clear that the disk performance I am seeing is way below what I had expected. Now I don't know if there is SATA 3 Gbps to blame or not - but since both the chipset and the drive claim to support it _and_ the drive's specs would warrant 6 Gbps (afaics), I'd really want to give that a try. running hdparm -t /dev/sda on a new Intel SSD 510 (120GB) gives here: Timing buffered disk reads: 360 MB in 3.01 seconds = 119.66 MB/sec The drive has an advertised sequential read performance of "up to 400 MB/s (6Gbps)" and a real-world test (on Anandtech) shows at least 232.1 MB/s of that.. Any suggestions? -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
