Christoph Lameter
21eac81f25
[PATCH] Swap Migration V5: LRU operations ...
This is the start of the `swap migration' patch series.
Swap migration allows the moving of the physical location of pages between
nodes in a numa system while the process is running. This means that the
virtual addresses that the process sees do not change. However, the system
rearranges the physical location of those pages.
The main intent of page migration patches here is to reduce the latency of
memory access by moving pages near to the processor where the process
accessing that memory is running.
The patchset allows a process to manually relocate the node on which its
pages are located through the MF_MOVE and MF_MOVE_ALL options while
setting a new memory policy.
The pages of process can also be relocated from another process using the
sys_migrate_pages() function call. Requires CAP_SYS_ADMIN. The migrate_pages
function call takes two sets of nodes and moves pages of a process that are
located on the from nodes to the destination nodes.
Manual migration is very useful if for example the scheduler has relocated a
process to a processor on a distant node. A batch scheduler or an
administrator can detect the situation and move the pages of the process
nearer to the new processor.
sys_migrate_pages() could be used on non-numa machines as well, to force all
of a particualr process's pages out to swap, if someone thinks that's useful.
Larger installations usually partition the system using cpusets into sections
of nodes. Paul has equipped cpusets with the ability to move pages when a
task is moved to another cpuset. This allows automatic control over locality
of a process. If a task is moved to a new cpuset then also all its pages are
moved with it so that the performance of the process does not sink
dramatically (as is the case today).
Swap migration works by simply evicting the page. The pages must be faulted
back in. The pages are then typically reallocated by the system near the node
where the process is executing.
For swap migration the destination of the move is controlled by the allocation
policy. Cpusets set the allocation policy before calling sys_migrate_pages()
in order to move the pages as intended.
No allocation policy changes are performed for sys_migrate_pages(). This
means that the pages may not faulted in to the specified nodes if no
allocation policy was set by other means. The pages will just end up near the
node where the fault occurred.
There's another patch series in the pipeline which implements "direct
migration".
The direct migration patchset extends the migration functionality to avoid
going through swap. The destination node of the relation is controllable
during the actual moving of pages. The crutch of using the allocation policy
to relocate is not necessary and the pages are moved directly to the target.
Its also faster since swap is not used.
And sys_migrate_pages() can then move pages directly to the specified node.
Implement functions to isolate pages from the LRU and put them back later.
This patch:
An earlier implementation was provided by Hirokazu Takahashi
<taka@valinux.co.jp> and IWAMOTO Toshihiro <iwamoto@valinux.co.jp> for the
memory hotplug project.
From: Magnus
This breaks out isolate_lru_page() and putpack_lru_page(). Needed for swap
migration.
Signed-off-by: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:12:41 -08:00
[ARM] Move AMBA include files to include/linux/amba/
2006-01-07 13:52:45 +00:00
[PATCH] V4L/DVB: (3086c) Whitespaces cleanups part 4
2005-12-12 08:57:44 -08:00
RPC: Clean up RPC task structure
2006-01-06 14:58:39 -05:00
[MMC] Fix missing ','
2006-01-04 12:40:39 +00:00
[PATCH] mtd onenand driver: reduce stack usage
2005-12-18 16:28:24 -08:00
[NETFILTER]: ctnetlink: Fix dumping of helper name
2006-01-05 12:20:02 -08:00
[NETFILTER]: Add "revision" support to arp_tables and ip6_tables
2005-10-31 16:36:08 -02:00
[NETFILTER]: Add ipt_policy/ip6t_policy matches
2006-01-07 12:57:38 -08:00
[NETFILTER]: Add ipt_policy/ip6t_policy matches
2006-01-07 12:57:38 -08:00
[PATCH] knfsd: check error status from vfs_getattr and i_op->fsync
2006-01-06 08:33:59 -08:00
[PATCH] md: allow sync-speed to be controlled per-device
2006-01-06 08:34:10 -08:00
SUNRPC: Update the spkm3 code to use the make_checksum interface
2006-01-06 14:58:59 -05:00
[PATCH] acct.h needs jiffies.h
2005-11-13 18:14:17 -08:00
[PATCH] aio: don't ref kioctx after decref in put_ioctx
2005-11-13 18:14:16 -08:00
Merge branch 'post-2.6.15' of git://brick.kernel.dk/data/git/linux-2.6-block
2006-01-06 09:01:25 -08:00
[ATM]: deregistration removes device from atm_devs list immediately
2005-11-29 16:16:41 -08:00
[PATCH] gfp_t: kernel/*
2005-10-28 08:16:49 -07:00
[SCSI] Convert SCSI mid-layer to scsi_execute_async
2005-12-14 19:03:35 -08:00
[PATCH] cpusets: bitmap and mask remap operators
2005-10-30 17:37:21 -08:00
[FLS64]: generic version
2006-01-03 13:11:06 -08:00
[BLOCK] Correct blk_execute_rq_nowait() prototype
2006-01-06 10:00:50 +01:00
[PATCH] Cleanup bootmem allocator and fix alloc_bootmem_low
2006-01-06 08:33:26 -08:00
[PATCH] ext3: Fix unmapped buffers in transaction's lists
2005-10-30 17:37:17 -08:00
[IA64] Add __read_mostly support for IA64
2005-12-16 10:52:46 -08:00
[PATCH 1/3] cciss: bug fix for hpacucli
2005-11-18 22:00:17 +01:00
[ARM] Move asm/hardware/clock.h to linux/clk.h
2006-01-07 16:15:52 +00:00
[PATCH] New Omnikey Cardman 4000 driver
2005-11-13 18:14:10 -08:00
[PATCH] Add timestamp field to process events
2005-12-12 08:57:42 -08:00
[DVB]: Add compat ioctl handling.
2005-11-16 00:52:57 -08:00
[PATCH] kbuild: permanently fix kernel configuration include mess
2005-11-06 10:22:04 +01:00
[PATCH] configfs: User-driven configuration filesystem
2006-01-03 11:45:28 -08:00
[CIFS] Reserve upcall IDX value for CIFS with connector header and add
2005-11-10 15:33:38 -08:00
[PATCH] console: Fix compile error
2005-11-07 07:53:52 -08:00
[PATCH] clean up lock_cpu_hotplug() in cpufreq
2005-11-28 14:42:23 -08:00
[CPUFREQ] CPU frequency display in /proc/cpuinfo
2005-12-06 19:35:11 -08:00
[PATCH] cpusets: bitmap and mask remap operators
2005-10-30 17:37:21 -08:00
[PATCH] shared mounts handling: umount
2005-11-07 18:18:11 -08:00
[INET_SOCK]: Move struct inet_sock & helper functions to net/inet_sock.h
2006-01-03 13:11:21 -08:00
[PATCH] driver core: replace "hotplug" by "uevent"
2006-01-04 16:18:08 -08:00
[PATCH] device-mapper ioctl: add skip lock_fs flag
2006-01-06 08:34:01 -08:00
[PATCH] CONFIG_IA32
2005-10-30 17:37:10 -08:00
[XFS] Add a mechanism for XFS to use the generic quota sync method.
2005-11-03 13:53:34 +11:00
Add definitions for the Dallas DS1742 RTC / non-volatile memory.
2005-11-17 16:23:43 +00:00
Add definitions for the Dallas DS17287 RTC.
2005-11-17 16:23:42 +00:00
[BLOCK] reimplement handling of barrier request
2006-01-06 09:51:03 +01:00
[NET]: Don't exclude broadcast addresses from is_multicast_ether_addr()
2006-01-03 15:25:45 -08:00
[PATCH] bnx2: add 5708 support
2005-11-05 21:00:02 -05:00
[PATCH] fbdev: Fix incorrect unaligned access in little-endian machines
2005-12-12 22:31:17 -08:00
[PATCH] reorder struct files_struct
2005-11-13 18:14:10 -08:00
[NET]: Change sk_run_filter()'s return type in net/core/filter.c
2006-01-06 13:08:20 -08:00
[PATCH] driver core: replace "hotplug" by "uevent"
2006-01-04 16:18:08 -08:00
Revert "[PATCH] fbcon: Add rl (Roman Large) font"
2005-11-12 10:14:02 -08:00
NLM: Further cancel fixes
2006-01-06 14:58:54 -05:00
[PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason
2005-11-09 07:55:57 -08:00
[PATCH] Update email address for Kumar
2005-11-13 18:14:10 -08:00
[PATCH] fuse: make maximum write data configurable
2006-01-06 08:33:56 -08:00
[PATCH] fix missing includes
2005-10-30 17:37:32 -08:00
[NETLINK]: Generic netlink family
2005-11-10 02:26:41 +01:00
[BLOCK] Document the READ/WRITE splitup of the disk stats
2005-11-12 10:55:21 +01:00
Fix up GFP_ZONEMASK for GFP_DMA32 usage
2005-11-22 19:39:30 -08:00
[PATCH] m68k: thread_info header cleanup
2005-11-13 18:14:13 -08:00
[PATCH] ide: remove dead code from flagged_taskfile()
2005-11-19 22:17:55 +01:00
[PATCH] Add NUMA policy support for huge pages.
2006-01-06 08:33:23 -08:00
[PATCH] hwmon: add VRM/VID support for some VIA CPUs
2006-01-05 22:16:26 -08:00
[PATCH] i2c: Drop unused per-i2c-algorithm adapter max
2005-10-28 14:02:10 -07:00
[PATCH] i2c: Drop unused per-i2c-algorithm adapter max
2005-10-28 14:02:10 -07:00
[PATCH] i2c: Drop unused per-i2c-algorithm adapter max
2005-10-28 14:02:10 -07:00
[PATCH] i2c: Drop useless CVS revision IDs
2005-10-28 14:02:09 -07:00
[PATCH] i2c: driver ID list cleanups
2006-01-05 22:16:26 -08:00
[PATCH] I2C: Make i2c_add_driver automatically set the proper module owner
2006-01-05 22:16:24 -08:00
[PATCH] I2O: Bugfixes
2006-01-06 08:33:54 -08:00
[PATCH] ide: cleanup ide_driver_t
2005-12-15 02:20:15 +01:00
include/linux: enclose idr.h in #ifndef
2005-11-08 17:14:08 +01:00
[NET]: Annotate h_proto in struct ethhdr
2005-11-10 13:03:08 -08:00
[PPP]: add PPP MPPE encryption module
2005-11-08 09:40:47 -08:00
[PPPOX]: Fix assignment into const proto_ops.
2006-01-03 13:11:23 -08:00
[PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason
2005-11-09 07:55:57 -08:00
[NET]: Endian-annotate in_aton()
2006-01-06 13:24:54 -08:00
[PATCH] aio: remove kioctx from mm_struct
2005-11-13 18:14:16 -08:00
[PATCH] inotify: add two inotify_add_watch flags
2005-12-12 08:57:43 -08:00
[PATCH] Input: fix add modalias support build error
2006-01-04 16:18:09 -08:00
[PATCH] m68k: thread_info header cleanup
2005-11-13 18:14:13 -08:00
[PATCH] __deprecated_for_modules: insert_resource
2005-11-07 07:54:07 -08:00
[NET]: Endian-annotate struct iphdr
2006-01-06 13:24:29 -08:00
[PATCH] ipmi: use refcount in message handler
2005-11-07 07:53:43 -08:00
[NETFILTER]: Fix xfrm lookup in ip_route_me_harder/ip6_route_me_harder
2006-01-07 12:57:33 -08:00
[IPV6]: Flag RTF_ANYCAST for anycast routes.
2005-12-21 22:56:42 +09:00
[PATCH] s390: cleanup Kconfig
2006-01-06 08:33:53 -08:00
[PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason
2005-11-09 07:55:57 -08:00
[PATCH] jbd: split checkpoint lists
2006-01-06 08:33:59 -08:00
[JFFS2] Clean up trailing white spaces
2005-11-07 14:18:56 +01:00
[JFFS2] Clean up trailing white spaces
2005-11-07 14:18:56 +01:00
[JFFS2] Clean up trailing white spaces
2005-11-07 14:18:56 +01:00
[PATCH] __deprecated_for_modules: panic_timeout
2005-11-07 07:54:08 -08:00
[PATCH] small kernel_stat.h cleanup
2005-11-07 07:53:37 -08:00
[PATCH] Keys: Add LSM hooks for key management [try #3 ]
2005-10-30 17:37:23 -08:00
[PATCH] Keys: Remove key duplication
2006-01-06 08:33:29 -08:00
[PATCH] fix missing includes
2005-10-30 17:37:32 -08:00
[PATCH] kobject_uevent CONFIG_NET=n fix
2006-01-04 16:18:08 -08:00
[PATCH] kprobes: increment kprobe missed count for multiprobes
2005-12-12 08:57:45 -08:00
[PATCH] Add kthread_stop_sem()
2005-10-30 17:37:17 -08:00
Merge branch 'post-2.6.15' of git://brick.kernel.dk/data/git/linux-2.6-block
2006-01-06 09:01:25 -08:00
[PATCH] add hlist_replace_rcu()
2005-12-12 08:57:43 -08:00
[PATCH] gfp_t: remaining bits of drivers/*
2005-10-28 08:16:51 -07:00
[PATCH] gfp_t: fs/*
2005-10-28 08:16:47 -07:00
[PATCH] Fix compilation with CONFIG_MEMORY_HOTPLUG=y and gcc41.
2006-01-08 20:12:39 -08:00
[PATCH] memory hotplug: sysfs and add/remove functions
2005-10-29 21:40:44 -07:00
[PATCH] mm: move determination of policy_zone into page allocator
2006-01-06 08:33:28 -08:00
[PATCH] drop-pagecache
2006-01-08 20:12:40 -08:00
[PATCH] Swap Migration V5: LRU operations
2006-01-08 20:12:41 -08:00
[PATCH] Make high and batch sizes of per_cpu_pagelists configurable
2006-01-08 20:12:40 -08:00
[PATCH] I2C: add i2c module alias for i2c drivers to use
2005-10-28 14:02:15 -07:00
[PATCH] modules: fix sparse warning for every MODULE_PARM
2005-10-30 17:37:26 -08:00
kbuild: un-stringnify KBUILD_MODNAME
2006-01-06 21:17:50 +01:00
[PATCH] unbindable mounts
2005-11-07 18:18:11 -08:00
[PATCH] fat: cleanup and optimization of checksum
2005-10-30 17:37:32 -08:00
[PATCH] n_r3964: fixed usage of HZ; removed bad include
2005-12-24 15:37:00 -08:00
[PATCH] sanitize lookup_hash prototype
2005-11-09 07:56:00 -08:00
[PATCH] making namespace_sem global
2005-11-07 18:18:10 -08:00
[PATCH] nbd: fix TX/RX race condition
2006-01-06 08:33:20 -08:00
[NET]: move struct proto_ops to const
2006-01-03 13:11:15 -08:00
[PATCH] sky2: change netif_rx_schedule_test to __netif_schedule_prep
2005-12-01 02:20:20 -05:00
[NETFILTER]: Add dummy nf_hook{_thresh}() when NETFILTER is disabled.
2006-01-07 12:57:42 -08:00
[NETFILTER]: Add nf_conntrack subsystem.
2005-11-09 16:38:16 -08:00
[NETLINK]: Type-safe netlink messages/attributes interface
2005-11-10 02:26:40 +01:00
NFSv4: Allow user to set the port used by the NFSv4 callback channel
2006-01-06 14:58:52 -05:00
NFSv4: Allow entries in the idmap cache to expire
2006-01-06 14:58:58 -05:00
NFS: simplify inlined bit ops in nfs_page.h
2006-01-06 14:58:48 -05:00
NFSv4: Ensure DELEGRETURN returns attributes
2006-01-06 14:58:51 -05:00
[PATCH] cpusets: bitmap and mask remap operators
2005-10-30 17:37:21 -08:00
[PATCH] mm: page_state opt docs
2006-01-06 08:33:29 -08:00
[PATCH] mm: gfp_noreclaim cleanup
2005-11-13 18:14:12 -08:00
[PATCH] parport: phase fixes
2006-01-06 08:33:56 -08:00
[PATCH] include/linux/parport_pc.h: "extern inline" -> "static inline"
2006-01-06 08:33:58 -08:00
[PATCH] pciehp: request control of each hotplug controller individually
2005-11-10 16:09:15 -08:00
[PATCH] PCI: removed unneeded .owner field from struct pci_driver
2005-11-10 16:09:17 -08:00
Merge master.kernel.org:/home/rmk/linux-2.6-serial
2006-01-07 10:44:22 -08:00
[PATCH] slab: remove unused align parameter from alloc_percpu
2006-01-08 20:12:39 -08:00
[LSM-IPSec]: Security association restriction.
2006-01-03 13:10:24 -08:00
[PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason
2005-11-09 07:55:57 -08:00
[PATCH] phy address mask support for generic phy layer
2005-11-05 14:40:55 -05:00
[PKT_SCHED] netem: packet corruption option
2006-01-03 13:11:05 -08:00
[PATCH] Driver Core: Add platform_device_del()
2006-01-04 16:18:09 -08:00
[PATCH] move pm_register/etc. to CONFIG_PM_LEGACY, pm_legacy.h
2005-11-13 18:14:10 -08:00
[PATCH] move pm_register/etc. to CONFIG_PM_LEGACY, pm_legacy.h
2005-11-13 18:14:10 -08:00
[ALSA] [PATCH] alsa: Improved PnP suspend support
2006-01-03 12:31:30 +01:00
[PPP]: add PPP MPPE encryption module
2005-11-08 09:40:47 -08:00
[PATCH] fix race with preempt_enable()
2005-12-22 09:17:39 -08:00
[PATCH] Fix sysctl unregistration oops (CVE-2005-2709)
2005-11-08 17:57:30 -08:00
[PATCH] consolidate sys_ptrace()
2005-11-07 07:53:42 -08:00
[PATCH] saner handling of auto_acct_off() and DQUOT_OFF() in umount
2005-11-07 18:18:09 -08:00
[PATCH] quota: small cleanups
2005-11-07 07:53:39 -08:00
[PATCH] reiser4: add radix_tree_lookup_slot()
2005-11-07 07:53:37 -08:00
[SCSI] raid class update
2005-11-06 12:32:31 -06:00
[PATCH] NOMMU: Provide shared-writable mmap support on ramfs
2006-01-06 08:33:32 -08:00
[INET6]: Generalise tcp_v6_hash_connect
2006-01-03 13:10:56 -08:00
[PATCH] add rcu_barrier() synchronization point
2005-12-12 08:57:42 -08:00
[PATCH] gfp_t: fs/*
2005-10-28 08:16:47 -07:00
[PATCH] relayfs: remove warning printk() in relay_switch_subbuf()
2005-12-20 17:33:22 -08:00
[PATCH] rapidio: message interface updates
2005-11-07 07:53:47 -08:00
[PATCH] rapidio: message interface updates
2005-11-07 07:53:47 -08:00
[PATCH] RapidIO support: core includes
2005-11-07 07:53:46 -08:00
[PATCH] rapidio: core updates
2005-11-07 07:53:46 -08:00
[PATCH] mm: rmap optimisation
2006-01-06 08:33:27 -08:00
[LIB] reed_solomon: Clean up trailing white spaces
2005-11-07 14:25:38 +01:00
[RTNETLINK]: Fix RTNLGRP definitions in rtnetlink.h
2005-12-19 13:54:44 -08:00
[PATCH] add sem_is_read/write_locked()
2005-10-29 21:40:35 -07:00
[PATCH] Introduce sg_set_buf
2005-10-30 11:14:39 +11:00
[PATCH] atomic_long_t & include/asm-generic/atomic.h V2
2006-01-06 08:33:29 -08:00
[LSM-IPSec]: Security association restriction.
2006-01-03 13:10:24 -08:00
[PATCH] fix remaining missing includes
2005-11-07 07:53:41 -08:00
[PATCH] fix missing includes
2005-10-30 17:37:32 -08:00
[SERIAL] Support Au1x00 8250 UARTs using the generic 8250 driver.
2005-11-06 09:07:03 +00:00
[ARM] 3181/1: add PORT_ identifier for Hilscher netx uart
2005-11-28 18:09:44 +00:00
Philips PNX8550 support: MIPS32-like core with 2 Trimedias on it.
2005-10-29 19:31:54 +01:00
[PATCH] SHM_NORESERVE flags for shmget()
2005-11-07 07:53:37 -08:00
[PATCH] kill sigqueue->lock
2005-10-30 17:37:19 -08:00
[NETFILTER]: Fix xfrm lookup in ip_route_me_harder/ip6_route_me_harder
2006-01-07 12:57:33 -08:00
[PATCH] mm: rename kmem_cache_s to kmem_cache
2005-11-07 07:53:24 -08:00
Revert "[NET]: Shut up warnings in net/core/flow.c"
2005-11-23 08:44:05 -08:00
[PATCH] m68k: thread_info header cleanup
2005-11-13 18:14:13 -08:00
[NET]: Small cleanup to socket initialization
2006-01-03 13:11:14 -08:00
kbuild: set correct KBUILD_MODNAME when using well known kernel symbols as module names
2005-12-26 00:33:41 +01:00
[PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason
2005-11-09 07:55:57 -08:00
[PATCH] superhyway: multiple block support and VCR rework
2005-11-07 07:53:28 -08:00
[PATCH] swsusp: improve freeing of memory
2006-01-06 08:33:40 -08:00
[PATCH] Swap Migration V5: LRU operations
2006-01-08 20:12:41 -08:00
[PATCH] unify sys_ptrace prototype
2005-10-30 17:37:20 -08:00
[PATCH] Make high and batch sizes of per_cpu_pagelists configurable
2006-01-08 20:12:40 -08:00
[IP_SOCKGLUE]: Remove most of the tcp specific calls
2006-01-03 13:10:58 -08:00
[PATCH] fix missing includes
2005-10-30 17:37:32 -08:00
[PATCH] m68k: convert thread flags to use bit fields
2005-11-13 18:14:14 -08:00
[PATCH] Add getnstimestamp function
2005-12-12 08:57:42 -08:00
[PATCH] add_timer() of a pending timer is illegal
2005-10-30 17:37:21 -08:00
[PATCH] NTP shift_right cleanup
2005-10-30 17:37:18 -08:00
[PATCH] gfp_t: infrastructure
2005-10-28 08:16:46 -07:00
remove pointers to the defunct UDF mailing list
2006-01-03 13:19:13 +01:00
remove pointers to the defunct UDF mailing list
2006-01-03 13:19:13 +01:00
remove pointers to the defunct UDF mailing list
2006-01-03 13:19:13 +01:00
[INET_SOCK]: Move struct inet_sock & helper functions to net/inet_sock.h
2006-01-03 13:11:21 -08:00
Input: uinput - add UI_SET_SWBIT ioctl
2005-11-20 00:51:33 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6
2006-01-04 18:44:12 -08:00
[PATCH] gfp_t: drivers/usb
2005-10-28 08:16:49 -07:00
[PATCH] add usb transceiver set_suspend() method
2005-10-28 16:47:45 -07:00
[PATCH] USB Storage: add alauda support
2006-01-04 13:51:42 -08:00
[PATCH] usb: Patch for USBDEVFS_IOCTL from 32-bit programs
2005-10-28 16:47:46 -07:00
[PATCH] v4l: 829: fixed user mode compiling
2005-11-09 07:56:23 -08:00
[PATCH] v4l: (943) added secam l video standard
2005-11-13 18:14:18 -08:00
[PATCH] vmalloc_node
2005-10-29 21:40:35 -07:00
[PATCH] fix remaining missing includes
2005-11-07 07:53:41 -08:00
[PATCH] add schedule_on_each_cpu()
2006-01-08 20:12:40 -08:00
identify multipage ->writepages() calls
2006-01-06 14:58:38 -05:00
[PATCH] i2c: New Xicor X1205 RTC driver
2005-10-28 14:02:12 -07:00
[LSM-IPSec]: Security association restriction.
2006-01-03 13:10:24 -08:00
[PATCH] ppc64 boot: remove include from include/linux/zutil.h
2005-10-29 15:04:02 +10:00
21eac81f25