On Fri, 1 Sep 2023 15:19:41 +0800 Ze Zuo <zuoze1@xxxxxxxxxx> wrote: > Add a parameter "node_id" to zram to support storing pages on specific > node_id node memory. Please document this in Documentation/admin-guide/blockdev/zram.rst Should it be a group of nodes rather than a single one? If this feature is useful, people will want that. > Now, zram memory allocation is random, however in some cases, specifying > specific nodes for memory allocation for zram may have good effects. In > addition, when memory tier is supported, demotion can be achieved not > only through page migration, it is also possible to apply for memory by > specifying zram on low-speed device nodes, such as CXL memory devices, > and compressing pages to these devices through memory reclamation to > achieve similar effects to migration. Are any performance testing results available from using this feature?
