This is a good summary of what patches are relevant to memory hotplug and their current state. Thank you very much Kamezawa_san. Martine -----Original Message----- From: lhms-devel-admin@xxxxxxxxxxxxxxxxxxxxx [mailto:lhms-devel-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of KAMEZAWA Hiroyuki Sent: Thursday, October 27, 2005 8:33 PM To: lhms Subject: [Lhms-devel] [RFC] what's available and what's not Hi, I summarized what's available (there is code) now and what's not. Please comment. [ready in Linus's or Andrew's tree] - sparsemem(extreme) (i386, x86_64, ppc, ia64) - acpi interfaces for ACPI memory device hotplug/add [Dave Hansen's -mhp tree] - memory hot add ..... ready in -mm - memory hot remove anon pages ..... ready in -mhp tree page cache ..... ready, some fs needs to implement their own migrate_fn - /sys/devices/system/memory interface for memory hotplug. - mlocked pages are migratable on this tree. - direct-I/O pages are migratable (a user just needs to wait for I/O completion :) [Christoph at el.] - memory migration simple version just for anon pages. - sys_migrate_pages(), sys_mbind(MPOL_MF_MOVE) [Mel Gorman] - Fragmentation Avoidance (this proj itself is independent from memory hotplug) [Yasunori Goto] - NUMA node hotplug/add [should be done] - NUMA friendly sparsemem (creating node local copy of mem_sections[] ?) - Hugetlb support (maybe depends on Hugetlb demand paging etc...) - exporting physical memory information (kexec will need this because firmware information is not updated after hotplug) - some availability check - some performance check. Do I miss something ? -- Kame ------------------------------------------------------- This SF.Net email is sponsored by the JBoss Inc. Get Certified Today * Register for a JBoss Training Course Free Certification Exam for All Training Attendees Through End of 2005 Visit http://www.jboss.com/services/certification for more information _______________________________________________ Lhms-devel mailing list Lhms-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/lhms-devel
