On Tue, May 16, 2017 at 11:27:08AM -0400, Kevin McKinney wrote: > Hi Everyone, > > Would it be possible to have a custom block device driver read/write > in increments of 12k instead of reading/writing data in 4k increments? > In other words, I would like to change the default page size on a > x86_64 platform (4.4.0 kernel) from 4k to 12k as the minimum page > size? I understand I may have negative performance due to > fragmentation. Any help would be appreciated. > > If this is the wrong mailing list, please let me know the right one to use.
I believe the answer is no. x86 supports page sizes of 4K, 2M and 1G. I don't believe anything else is possible with the hardware. The page size is not a software invention. -- Len Sorensen
