1. 19 1月, 2006 1 次提交
  2. 09 1月, 2006 1 次提交
    • C
      [PATCH] Swap Migration V5: sys_migrate_pages interface · 39743889
      Christoph Lameter 提交于
      sys_migrate_pages implementation using swap based page migration
      
      This is the original API proposed by Ray Bryant in his posts during the first
      half of 2005 on linux-mm@kvack.org and linux-kernel@vger.kernel.org.
      
      The intent of sys_migrate is to migrate memory of a process.  A process may
      have migrated to another node.  Memory was allocated optimally for the prior
      context.  sys_migrate_pages allows to shift the memory to the new node.
      
      sys_migrate_pages is also useful if the processes available memory nodes have
      changed through cpuset operations to manually move the processes memory.  Paul
      Jackson is working on an automated mechanism that will allow an automatic
      migration if the cpuset of a process is changed.  However, a user may decide
      to manually control the migration.
      
      This implementation is put into the policy layer since it uses concepts and
      functions that are also needed for mbind and friends.  The patch also provides
      a do_migrate_pages function that may be useful for cpusets to automatically
      move memory.  sys_migrate_pages does not modify policies in contrast to Ray's
      implementation.
      
      The current code here is based on the swap based page migration capability and
      thus is not able to preserve the physical layout relative to it containing
      nodeset (which may be a cpuset).  When direct page migration becomes available
      then the implementation needs to be changed to do a isomorphic move of pages
      between different nodesets.  The current implementation simply evicts all
      pages in source nodeset that are not in the target nodeset.
      
      Patch supports ia64, i386 and x86_64.
      Signed-off-by: NChristoph Lameter <clameter@sgi.com>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      39743889
  3. 15 11月, 2005 1 次提交
  4. 31 10月, 2005 1 次提交
  5. 27 7月, 2005 1 次提交
  6. 28 6月, 2005 1 次提交
    • J
      [PATCH] Update cfq io scheduler to time sliced design · 22e2c507
      Jens Axboe 提交于
      This updates the CFQ io scheduler to the new time sliced design (cfq
      v3).  It provides full process fairness, while giving excellent
      aggregate system throughput even for many competing processes.  It
      supports io priorities, either inherited from the cpu nice value or set
      directly with the ioprio_get/set syscalls.  The latter closely mimic
      set/getpriority.
      
      This import is based on my latest from -mm.
      Signed-off-by: NJens Axboe <axboe@suse.de>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      22e2c507
  7. 26 6月, 2005 1 次提交
  8. 01 5月, 2005 1 次提交
  9. 17 4月, 2005 2 次提交