src/pmdas/linux/ksm.h

   1 /*
   2  * Copyright (c) 2016 Fujitsu.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License as published by the
   6  * Free Software Foundation; either version 2 of the License, or (at your
   7  * option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  11  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * for more details.
  13  */
  14
  15 typedef struct {
  16         /* Number of times that KSM has scanned for duplicated content. */
  17         unsigned long full_scans;
  18         /* Allows merging across NUMA nodes. */
  19         unsigned long merge_across_nodes;
  20         /* The number of nodes in the stable tree */
  21         unsigned long pages_shared;
  22         /* The number of virtual pages that are sharing a single page. */
  23         unsigned long pages_sharing;
  24         /* Number of pages to scan at a time. */
  25         unsigned int pages_to_scan;
  26         /* The number of nodes in the unstable tree */
  27         unsigned long pages_unshared;
  28         /* Number of pages that are candidate to be shared */
  29         unsigned long pages_volatile;
  30         /* Wheter the KSM is run */
  31         int run;
  32         /* Milliseconds ksmd should sleep between batches */
  33         unsigned int sleep_millisecs;
  34 } ksm_info_t;
  35
  36 extern int refresh_ksm_info(ksm_info_t *ksm_info);
  37