OA Provide additional memory metrics and TOTAL FREE MEMORY on Linux for SAP systems

Idea ID 2704690

OA Provide additional memory metrics and TOTAL FREE MEMORY on Linux for SAP systems

SAP recommends memory metrics which are not available on Linux as of today [1].

The request is to have Linux metrics taken from /proc/meminfo:

  • MemFree
  • Cached
  • SwapTotal
  • SwapFree
  • Shmem

In addition, the following calculated metric:

  • TOTAL FREE MEMORY = (MemFree+Cached-Shmem)-(SwapTotal-SwapFree)

 

Status as of today:

  • GBL_MEM_FREE = MemFree + SReclaimable + Cached(Cached is not included if cachemem = user in parm file. Default is cachemem = free)
  • GBL_MEM_FILE_PAGE_CACHE = Cached
  • GBL_SWAP_SPACE_USED = SwapTotal – SwapFree
  • Shmem is not used in any metric calculation

 

[1] https://launchpad.support.sap.com/#/notes/1382721

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