[PATCH 0/2] slabinfo: parse all NUMA attributes
From: Tobin C. Harding
Date:  Mon Feb 17 2020 - 03:48:52 EST
Hi Christoph,
I found a few files in /sys/kernel/slab/foo/ that contain NUMA info that
is not currently being parsed by `slabinfo.c`.  I do not know whether
this is intentional or not?  Since I did not know this I just printed
the info in the NUMA report section like is done for the per node slabs
and partial slabs info.
Just for your interest; I found these while re-writing slabinfo in Rust,
thanks to the type-system.  I guess that if they were unintentionally
missed then this is a small win, if they were intentionally missed then
this series is just noise :)
Patch one is a one line whitespace fix.
To test I comment out the code that inhibits NUMA output for single node
machines and then the output looks like this (relevant bit at the bottom)
$ sudo slabinfo kmem_cache_node
Slabcache: kmem_cache_node  Aliases:  0 Order :  0 Objects: 1877
** Hardware cacheline aligned
Sizes (bytes)     Slabs              Debug                Memory
------------------------------------------------------------------------
Object :      64  Total  :      34   Sanity Checks : Off  Total:  139264
SlabObj:      64  Full   :      15   Redzoning     : Off  Used :  120128
SlabSiz:    4096  Partial:      17   Poisoning     : Off  Loss :   19136
Loss   :       0  CpuSlab:       2   Tracking      : Off  Lalig:       0
Align  :      64  Objects:      64   Tracing       : Off  Lpadd:       0
kmem_cache_node has no kmem_cache operations
kmem_cache_node: Kernel object allocation
-----------------------------------------------------------------------
No Data
kmem_cache_node: Kernel object freeing
------------------------------------------------------------------------
No Data
NUMA nodes           :    0
---------------------------
All slabs                34
Partial slabs            17
CPU slabs                 2
Objects                1.8K
Partial objects         789
Total objects          2.1K
Tobin C. Harding (2):
  tools: vm: slabinfo: Replace tabs with spaces
  tools: vm: slabinfo: Add numa information for objects
 tools/vm/slabinfo.c | 69 +++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 63 insertions(+), 6 deletions(-)
-- 
2.17.1