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author | Kajol Jain <kjain@linux.ibm.com> | 2021-12-06 12:17:49 +0300 |
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committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-12-16 13:31:44 +0300 |
commit | 6ed05a8efda56e5be11081954929421de19cce88 (patch) | |
tree | 58716b82becd2c4ba301effdab421455f6a9a046 /lib/test_hash.c | |
parent | 4a20ee106154ac1765dea97932faad29f0ba57fc (diff) | |
download | linux-6ed05a8efda56e5be11081954929421de19cce88.tar.xz |
powerpc/perf: Add data source encodings for power10 platform
The code represent memory/cache level data based on PERF_MEM_LVL_*
namespace, which is in the process of deprication in the favour of
newer composite PERF_MEM_{LVLNUM_,REMOTE_,SNOOPX_,HOPS_} fields.
Add data source encodings to represent cache/memory data based on
newer composite PERF_MEM_{LVLNUM_,REMOTE_,SNOOPX_,HOPS_} fields.
Add data source encodings to represent data coming from local
memory/Remote memory/distant memory and remote/distant cache hits.
In order to represent data coming from OpenCAPI cache/memory, we use
LVLNUM "PMEM" field which is used to present persistent memory accesses.
Result in power10 system with patch changes:
localhost:# ./perf mem report --sort="mem,sym,dso" --stdio
# Overhead Samples Memory access Symbol Shared Object
# ........ ............ ........................ .......................... ................
#
29.46% 2331 L1 or L1 hit [.] __random libc-2.28.so
23.11% 2121 L1 or L1 hit [.] producer_populate_cache producer_consumer
18.56% 1758 L1 or L1 hit [.] __random_r libc-2.28.so
15.64% 1559 L2 or L2 hit [.] __random libc-2.28.so
.....
0.09% 5 Remote socket, same board Any cache hit [.] __random libc-2.28.so
0.07% 4 Remote socket, same board Any cache hit [.] __random libc-2.28.so
.....
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Reviewed-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211206091749.87585-5-kjain@linux.ibm.com
Diffstat (limited to 'lib/test_hash.c')
0 files changed, 0 insertions, 0 deletions