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NAME | SYNOPSIS | DESCRIPTION | NOTES | FILES | COPYRIGHT | SEE ALSO | COLOPHON |
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MIGRATEPAGES(8) Linux Administrator's Manual MIGRATEPAGES(8)
migratepages - Migrate the physical location a processes pages
migratepages pid from-nodes to-nodes
migratepages moves the physical location of a processes pages
without any changes of the virtual address space of the process.
Moving the pages allows one to change the distances of a process
to its memory. Performance may be optimized by moving a processes
pages to the node where it is executing.
If multiple nodes are specified for from-nodes or to-nodes then
an attempt is made to preserve the relative location of each page
in each nodeset.
For example if we move from nodes 2-5 to 7,9,12-13 then the
preferred mode of operation is to move pages from 2->7, 3->9,
4->12 and 5->13. However, this is only posssible if enough memory
is available.
Valid node specifiers
all All nodes
number Node number
number1{,number2} Node number1 and Node number2
number1-number2 Nodes from number1 to number2
! nodes Invert selection of the following specification.
Requires a NUMA policy aware kernel with support for page
migration (linux 2.6.16 and later).
migratepages will only move pages that are not shared with other
processes if called by a user without administrative priviledges
(but with the right to modify the process).
migratepages will move all pages if invoked from root (or a user
with administrative priviledges).
/proc/<pid>/numa_maps for information about the NUMA memory use
of a process.
Copyright 2005-2006 Christoph Lameter, Silicon Graphics, Inc.
migratepages is under the GNU General Public License, v.2
numactl(8) , set_mempolicy(2) , get_mempolicy(2) , mbind(2) ,
sched_setaffinity(2) , sched_getaffinity(2) , proc(5) , ftok(3) ,
shmat(2) , taskset(1)
This page is part of the numactl (NUMA commands) project.
Information about the project can be found at
⟨http://oss.sgi.com/projects/libnuma/⟩. If you have a bug report
for this manual page, send it to linux-numa@vger.kernel.org.
This page was obtained from the project's upstream Git repository
⟨https://github.com/numactl/numactl.git⟩ on 2023-12-22. (At that
time, the date of the most recent commit that was found in the
repository was 2023-09-05.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
SGI Jan 2005 MIGRATEPAGES(8)
Pages that refer to this page: migrate_pages(2), move_pages(2), cpuset(7), numactl(8)
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HTML rendering created 2023-12-22 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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