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e2091cedd5
Adding MEM_TOPOLOGY feature to perf data file,
that will carry physical memory map and its
node assignments.
The format of data in MEM_TOPOLOGY is as follows:
0 - version | for future changes
8 - block_size_bytes | /sys/devices/system/memory/block_size_bytes
16 - count | number of nodes
For each node we store map of physical indexes for
each node:
32 - node id | node index
40 - size | size of bitmap
48 - bitmap | bitmap of memory indexes that belongs to node
| /sys/devices/system/node/node<NODE>/memory<INDEX>
The MEM_TOPOLOGY could be displayed with following
report command:
$ perf report --header-only -I
...
# memory nodes (nr 1, block size 0x8000000):
# 0 [7G]: 0-23,32-69
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180307155020.32613-8-jolsa@kernel.org
[ Rename 'index' to 'idx', as this breaks the build in rhel5, 6 and other systems where this is used by glibc headers ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| .. | ||
| sched | ||
| unaligned | ||
| atomic.h | ||
| bitmap.h | ||
| bitops.h | ||
| bug.h | ||
| compiler-gcc.h | ||
| compiler.h | ||
| coresight-pmu.h | ||
| debug_locks.h | ||
| delay.h | ||
| err.h | ||
| export.h | ||
| filter.h | ||
| ftrace.h | ||
| gfp.h | ||
| hardirq.h | ||
| hash.h | ||
| hashtable.h | ||
| interrupt.h | ||
| irqflags.h | ||
| jhash.h | ||
| kallsyms.h | ||
| kern_levels.h | ||
| kernel.h | ||
| linkage.h | ||
| list.h | ||
| lockdep.h | ||
| log2.h | ||
| module.h | ||
| mutex.h | ||
| poison.h | ||
| proc_fs.h | ||
| rbtree_augmented.h | ||
| rbtree.h | ||
| rcu.h | ||
| refcount.h | ||
| seq_file.h | ||
| spinlock.h | ||
| stacktrace.h | ||
| string.h | ||
| stringify.h | ||
| time64.h | ||
| types.h | ||