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gr_nstats(1)							  gr_nstats(1)

NAME
     gr_nstats - NUMA Memory Management Statistics

SYNOPSIS
     gr_nstats

DESCRIPTION
     Graphical version of nstats(1).

     The column of values shows the exact system values, whereas the meters
     display a moving average of the change in these values.  Note that when
     viewing total system activity, the meters show the total change, but the
     column of values continues to display on a per node basis.

OUTPUT
     Migration Threshold
	  Current migration threshold for this node expressed as a percentage
	  of the maximum threshold supported by the memory reference counters.
	  This maximum threshold is shown by the sn(1) command, and it can be
	  set by the system administrator to be either 2047 or 524287. Only
	  machines with PREMIUMM directory memory support the higher value of
	  524287.  The migration threshold determines how aggressively the
	  system is trying to migrate memory to the nodes that are issuing
	  most memory accesses to a page of memory. Migration is requested
	  when the difference between the number of local accesses and the
	  number of remote accesses exceeds the number defined by the
	  migration threshold.

     Counter Interrupts
	  This is the number of interrupts generated by the memory reference
	  counters, including interrupts for migration and interrupts for
	  updating the extended memory reference counters (refcnt(5)).

     Auto Migrations To Node
	  Number of pages automatically migrated to a node.

     Auto Migrations From Node
	  Number of pages automatically migrated out of a node.

     Auto Migration Skips
	  Rejected automatic migration requests due to a page being frozen or
	  not in a migratable state.

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gr_nstats(1)							  gr_nstats(1)

     User Migrations To Node
	  Number of pages migrated to a node due to an explicit user migration
	  request.

     User Migrations From Node
	  Number of pages migrated out of a node due to an explicit user
	  migration request.

     User Migration Skips
	  Rejected user migration requests due to a page being frozen or not
	  in a migratable state.

     CoalD Migrations To Node
	  Number of pages migrated to a node due large page coalescing.

     CoalD Migrations From Node
	  Number of pages migrated from a node due to large page coalescing.

     CoalD Migration Skips
	  Rejected large page coalescing migration requests due to a page
	  being frozen or not in a migratable state.

     Frozen Pages In Node
	  Pages frozen due to excessive migration.

     Melted Pages In Node
	  Pages melted (unfrozen) after having been frozen for a period of
	  time.

RESTRICTIONS
     All statistics are global.

SEE ALSO
     numa(5), refcnt(5), gr_sn(1), sn(1), nstats(1).

BUGS
     At times the tool will stop allowing user interaction, but will continue
     to update the values.

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