[SRU][J][PATCH 03/12] perf vendor events s390: Add cache metrics for z13
Massimiliano Pellizzer
massimiliano.pellizzer at canonical.com
Thu Sep 4 08:11:28 UTC 2025
From: Thomas Richter <tmricht at linux.ibm.com>
BugLink: https://bugs.launchpad.net/bugs/2103415
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 at linux.ibm.com>
Acked-By: Sumanth Korikkar <sumanthk at linux.ibm.com>
Cc: Heiko Carstens <hca at linux.ibm.com>
Cc: Sven Schnelle <svens at linux.ibm.com>
Cc: Vasily Gorbik <gor at linux.ibm.com>
Link: https://lore.kernel.org/r/20230313080201.2440201-3-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme at redhat.com>
(cherry picked from commit 850eea236f8ad4a648cb7997eed8a3c616cc0678)
Signed-off-by: Massimiliano Pellizzer <massimiliano.pellizzer at canonical.com>
---
.../arch/s390/cf_z13/transaction.json | 25 +++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/tools/perf/pmu-events/arch/s390/cf_z13/transaction.json b/tools/perf/pmu-events/arch/s390/cf_z13/transaction.json
index 86bf83b4504e..71e2c7fa734c 100644
--- a/tools/perf/pmu-events/arch/s390/cf_z13/transaction.json
+++ b/tools/perf/pmu-events/arch/s390/cf_z13/transaction.json
@@ -18,5 +18,30 @@
"BriefDescription": "Level One Miss per 100 Instructions",
"MetricName": "l1mp",
"MetricExpr": "((L1I_DIR_WRITES + L1D_DIR_WRITES) / INSTRUCTIONS) * 100"
+ },
+ {
+ "BriefDescription": "Percentage sourced from Level 2 cache",
+ "MetricName": "l2p",
+ "MetricExpr": "((L1D_L2D_SOURCED_WRITES + L1I_L2I_SOURCED_WRITES) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100"
+ },
+ {
+ "BriefDescription": "Percentage sourced from Level 3 on same chip cache",
+ "MetricName": "l3p",
+ "MetricExpr": "((L1D_ONCHIP_L3_SOURCED_WRITES + L1D_ONCHIP_L3_SOURCED_WRITES_IV + L1I_ONCHIP_L3_SOURCED_WRITES + L1I_ONCHIP_L3_SOURCED_WRITES_IV) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100"
+ },
+ {
+ "BriefDescription": "Percentage sourced from Level 4 Local cache on same book",
+ "MetricName": "l4lp",
+ "MetricExpr": "((L1D_ONNODE_L4_SOURCED_WRITES + L1D_ONNODE_L3_SOURCED_WRITES_IV + L1D_ONNODE_L3_SOURCED_WRITES + L1I_ONNODE_L4_SOURCED_WRITES + L1I_ONNODE_L3_SOURCED_WRITES_IV + L1I_ONNODE_L3_SOURCED_WRITES) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100"
+ },
+ {
+ "BriefDescription": "Percentage sourced from Level 4 Remote cache on different book",
+ "MetricName": "l4rp",
+ "MetricExpr": "((L1D_ONDRAWER_L4_SOURCED_WRITES + L1D_ONDRAWER_L3_SOURCED_WRITES_IV + L1D_ONDRAWER_L3_SOURCED_WRITES + L1D_OFFDRAWER_SCOL_L4_SOURCED_WRITES + L1D_OFFDRAWER_SCOL_L3_SOURCED_WRITES_IV + L1D_OFFDRAWER_SCOL_L3_SOURCED_WRITES + L1D_OFFDRAWER_FCOL_L4_SOURCED_WRITES + L1D_OFFDRAWER_FCOL_L3_SOURCED_WRITES_IV + L1D_OFFDRAWER_FCOL_L3_SOURCED_WRITES + L1I_ONDRAWER_L4_SOURCED_WRITES + L1I_ONDRAWER_L3_SOURCED_WRITES_IV + L1I_ONDRAWER_L3_SOURCED_WRITES + L1I_OFFDRAWER_SCOL_L4_SOURCED_WRITES + L1I_OFFDRAWER_SCOL_L3_SOURCED_WRITES_IV + L1I_OFFDRAWER_SCOL_L3_SOURCED_WRITES + L1I_OFFDRAWER_FCOL_L4_SOURCED_WRITES + L1I_OFFDRAWER_FCOL_L3_SOURCED_WRITES_IV + L1I_OFFDRAWER_FCOL_L3_SOURCED_WRITES) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100"
+ },
+ {
+ "BriefDescription": "Percentage sourced from memory",
+ "MetricName": "memp",
+ "MetricExpr": "((L1D_ONNODE_MEM_SOURCED_WRITES + L1D_ONDRAWER_MEM_SOURCED_WRITES + L1D_OFFDRAWER_MEM_SOURCED_WRITES + L1D_ONCHIP_MEM_SOURCED_WRITES + L1I_ONNODE_MEM_SOURCED_WRITES + L1I_ONDRAWER_MEM_SOURCED_WRITES + L1I_OFFDRAWER_MEM_SOURCED_WRITES + L1I_ONCHIP_MEM_SOURCED_WRITES) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100"
}
]
--
2.48.1
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