Joel Stanley wrote: > On Dec 17, 2007 5:55 PM, Ivan Krstić <krstic at solarsail.hcs.harvard.edu> > wrote: > > On Dec 17, 2007, at 1:51 AM, Joel Stanley wrote: > > > JFFS2 has done an excellent job, at least on my xos, of keeping > > > filesystem integrity after sudden power-offs. > > > > Write-back caching does not adversely affect filesystem *integrity*. > > Okay. Data-loss what what my brain thought, a sentence about integrity > came out of my fingers. > > > more context-sensitive policy can be implemented by more context-aware > > elements of the stack. > > That would be cool. But I think there would as many, maybe more, cases > of batteries being removed, power cords yanked, and generators turning > off causing shutdowns than low-battery issues. > > Also, a point wad made: the more writes you defer, the more memory is > used to store them, on an already memory-constrained system.
I think writeback would be triggered when memory is needed, so that the memory would be made available anyway. > > Not that I don't think UBIFS would be awesome, with an amount of > tweaking to hit the sweet spot miniamsing memory usage, data-loss, and > keeping write speed up, etc. Just thinking about the downsides. > > Joel _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel