Thomas Richter 850eea236f perf vendor events s390: Add cache metrics for z13
Add metrics for s390 z13

- Percentage sourced from Level 2 cache
- Percentage sourced from Level 3 on same chip cache
- Percentage sourced from Level 4 Local cache on same book
- Percentage sourced from Level 4 Remote cache on different book
- Percentage sourced from memory

For details about the formulas see this documentation:

  https://www.ibm.com/support/pages/system/files/inline-files/CPU%20MF%20Formulas%20including%20z16%20-%20May%202022_1.pdf

Output after:

  # ./perf stat -M l4rp -- find /
   ...find output deleted

  Performance counter stats for 'find /':

            2      L1I_OFFDRAWER_SCOL_L4_SOURCED_WRITES #     0.02 l4rp
          252      L1D_ONDRAWER_L4_SOURCED_WRITES
        3,465      L1D_ONDRAWER_L3_SOURCED_WRITES_IV
           80      L1D_OFFDRAWER_SCOL_L4_SOURCED_WRITES
          761      L1D_ONDRAWER_L3_SOURCED_WRITES
            0      L1I_OFFDRAWER_SCOL_L3_SOURCED_WRITES
  131,817,067      L1I_DIR_WRITES
            1      L1I_OFFDRAWER_FCOL_L4_SOURCED_WRITES
          447      L1D_OFFDRAWER_SCOL_L3_SOURCED_WRITES
           22      L1D_OFFDRAWER_FCOL_L4_SOURCED_WRITES
            7      L1I_ONDRAWER_L4_SOURCED_WRITES
            0      L1I_OFFDRAWER_FCOL_L3_SOURCED_WRITES
        1,071      L1D_OFFDRAWER_FCOL_L3_SOURCED_WRITES
            3      L1I_ONDRAWER_L3_SOURCED_WRITES
       13,352      L1D_OFFDRAWER_FCOL_L3_SOURCED_WRITES_IV
       15,252      L1D_OFFDRAWER_SCOL_L3_SOURCED_WRITES_IV
            0      L1I_ONDRAWER_L3_SOURCED_WRITES_IV
            0      L1I_OFFDRAWER_FCOL_L3_SOURCED_WRITES_IV
   57,431,083      L1D_DIR_WRITES
            0      L1I_OFFDRAWER_SCOL_L3_SOURCED_WRITES_IV

      15.386502874 seconds time elapsed

       0.647348000 seconds user
       3.537041000 seconds sys

  #

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-By: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: https://lore.kernel.org/r/20230313080201.2440201-3-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-03-14 18:36:04 -03:00
2023-03-05 10:49:37 -08:00
2022-09-28 09:02:20 +02:00
2023-03-05 14:52:03 -08:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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