On Thu, 23 Jul 2015, Jesper Dangaard Brouer wrote: > > > I was hoping I could define this per slub runtime. Any chance this > > > would be made possible? > > > > It's not possible to set/reset slab merge in runtime. Once merging > > happens, one slab could have objects from different kmem_caches so we > > can't separate it cleanly. Current best approach is to prevent merging > > when creating new kmem_cache by introducing new slab flag > > like as SLAB_NO_MERGE. > > Yes, the best option would be a new flag (e.g. SLAB_NO_MERGE) when > creating the kmem_cache. If this is only in order to stability artificial test loads then the current kernel parameter is fine afaict. Such a flag has been proposed numerous times but we never did anything about these requests. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>