kmalloc
kmalloc
Posted Apr 11, 2025 18:12 UTC (Fri) by willy (subscriber, #9762)In reply to: kmalloc by gmprice
Parent article: Management of volatile CXL devices
Again, people made these arguments for 3dxp, and nobody was convinced.
Latency is about 2.5x higher for CXL than for DDR, which is honestly even worse than I thought. I guess part of that can be attributed to the immaturity of the technology, but I've demonstrated that it will always be slower than DDR.
Using it for zswap seems like a great idea. Using it for slab, stack, page-cache; all of these seem like terrible ideas.