Hi, It seems similar with TRIM. So how about to consider TRIM implementation or extend it? I'm not familiar with NCQ implementation but it's also helpful to implement it.
Thank you, Kyungmin Park On Tue, May 3, 2011 at 11:44 AM, Gao, Yunpeng <yunpeng....@intel.com> wrote: > Currently, some new storage devices have the ability to do performance > optimizations according to the type of data payload - say, file system > metadata, time-stamps, sequential write in some granularity, random write and > so on. > > For example, the latest eMMC 4.5 device can support the so-called 'Context > Management' and 'Data Tag Mechanism' features. By receiving the information > of payload data type, the eMMC 4.5 device can improve the access rate during > the following read and update operations and offer a more reliable and robust > storage. > > And obviously, to enable these kind of advanced features of storage device, > it needs not only the low level block device driver supports, but also the > file system supports since files system knows more info about the data type > of the payload. But currently, seems there are no file systems implemented > these kind of supports yet. > > So, my question is, is there any plan or discussion on supporting this > feature (passing data type info to low level block device driver) on file > system developments? Especially for ext4/btrfs, since now they are very hot > in Linux? Thanks. > > > Regards, > Yunpeng Gao > -- > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
