Re:DragonFlydb: Cache Design
by magicalhippo on Tuesday August 16, 2022 @03:32PM
(#32487674)
Appreciate the reply, as I said not my field but I do find it really interesting.
> An under-rated aspect of the algorithms, somewhat ignored in the literature, are their computational cost.
Since I mentioned ZFS... IIRC ZFS struggles to scale to NVMEs in part due to the ARC. When the penalty for missing the cache was hundreds of milliseconds you could afford doing work, but not so much these days.
> An under-rated aspect of the algorithms, somewhat ignored in the literature, are their computational cost.
Since I mentioned ZFS... IIRC ZFS struggles to scale to NVMEs in part due to the ARC. When the penalty for missing the cache was hundreds of milliseconds you could afford doing work, but not so much these days.