Messages in this thread | | | Date | Wed, 05 Jul 2006 08:24:29 -0400 | From | Bill Davidsen <> | Subject | Re: ext4 features |
| |
Theodore Tso wrote: > On Sat, Jul 01, 2006 at 06:33:01PM +0200, Thomas Glanzmann wrote: >> I would like to know which new features are planed to be incorported by >> ext4. So far I only read about supporting bigger filesystems to fit >> recent hardware developments. So are there any other big goals for ext4? > > Some of the ideas which have been tossed about include: > > * nanosecond timestamps, and support for time beyond the 2038
The 2nd one is probably more urgent than the first. I can see a general benefit from timestamp in ms, beyond that seems to be a specialty requirement best provided at the application level rather than the bits of a trillion inodes which need no such thing.
One argument against it is that with SMP with *almost* the same time in each CPU, cache everywhere in the i/o process, and various flavors of network filesystems, the atime/mtime become less and less useful for determining with great precision which file is most recently modified or accessed.
-- Bill Davidsen <davidsen@tmr.com> Obscure bug of 2004: BASH BUFFER OVERFLOW - if bash is being run by a normal user and is setuid root, with the "vi" line edit mode selected, and the character set is "big5," an off-by-one errors occurs during wildcard (glob) expansion.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |