[PATCH 1/6] tools/perf/json: Add common metrics for s390

From: Thomas Richter
Date: Mon Mar 13 2023 - 04:06:23 EST


Add 3 metrics for s390 machines:
- Cycles per instruction: Amount of CPU cycles used per instructions,
named cpi.
- Problem state ratio: Ratio of instructions executed in problem state
compared to total number of instructions, named prbstate.
- Level one instruction and data cache misses per 100 instructions,
named l1mp.

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

Outpuf after:
# ./perf stat -M cpi -- dd if=/dev/zero of=/dev/null bs=1M count=10K
10240+0 records in
10240+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 1.30151 s, 8.2 GB/s

Performance counter stats for 'dd if=/dev/zero of=/dev/null .....':

6,779,778,802 CPU_CYCLES # 1.96 cpi
3,461,975,090 INSTRUCTIONS

1.306873021 seconds time elapsed

0.001034000 seconds user
1.305677000 seconds sys
#

Signed-off-by: Thomas Richter <tmricht@xxxxxxxxxxxxx>
Acked-By: Sumanth Korikkar <sumanthk@xxxxxxxxxxxxx>
---
.../pmu-events/arch/s390/cf_z13/transaction.json | 15 +++++++++++++++
.../pmu-events/arch/s390/cf_z14/transaction.json | 15 +++++++++++++++
.../pmu-events/arch/s390/cf_z15/transaction.json | 15 +++++++++++++++
.../pmu-events/arch/s390/cf_z16/transaction.json | 15 +++++++++++++++
4 files changed, 60 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 1a0034f79f73..86bf83b4504e 100644
--- a/tools/perf/pmu-events/arch/s390/cf_z13/transaction.json
+++ b/tools/perf/pmu-events/arch/s390/cf_z13/transaction.json
@@ -3,5 +3,20 @@
"BriefDescription": "Transaction count",
"MetricName": "transaction",
"MetricExpr": "TX_C_TEND + TX_NC_TEND + TX_NC_TABORT + TX_C_TABORT_SPECIAL + TX_C_TABORT_NO_SPECIAL"
+ },
+ {
+ "BriefDescription": "Cycles per Instruction",
+ "MetricName": "cpi",
+ "MetricExpr": "CPU_CYCLES / INSTRUCTIONS"
+ },
+ {
+ "BriefDescription": "Problem State Instruction Ratio",
+ "MetricName": "prbstate",
+ "MetricExpr": "(PROBLEM_STATE_INSTRUCTIONS / INSTRUCTIONS) * 100"
+ },
+ {
+ "BriefDescription": "Level One Miss per 100 Instructions",
+ "MetricName": "l1mp",
+ "MetricExpr": "((L1I_DIR_WRITES + L1D_DIR_WRITES) / INSTRUCTIONS) * 100"
}
]
diff --git a/tools/perf/pmu-events/arch/s390/cf_z14/transaction.json b/tools/perf/pmu-events/arch/s390/cf_z14/transaction.json
index 1a0034f79f73..86bf83b4504e 100644
--- a/tools/perf/pmu-events/arch/s390/cf_z14/transaction.json
+++ b/tools/perf/pmu-events/arch/s390/cf_z14/transaction.json
@@ -3,5 +3,20 @@
"BriefDescription": "Transaction count",
"MetricName": "transaction",
"MetricExpr": "TX_C_TEND + TX_NC_TEND + TX_NC_TABORT + TX_C_TABORT_SPECIAL + TX_C_TABORT_NO_SPECIAL"
+ },
+ {
+ "BriefDescription": "Cycles per Instruction",
+ "MetricName": "cpi",
+ "MetricExpr": "CPU_CYCLES / INSTRUCTIONS"
+ },
+ {
+ "BriefDescription": "Problem State Instruction Ratio",
+ "MetricName": "prbstate",
+ "MetricExpr": "(PROBLEM_STATE_INSTRUCTIONS / INSTRUCTIONS) * 100"
+ },
+ {
+ "BriefDescription": "Level One Miss per 100 Instructions",
+ "MetricName": "l1mp",
+ "MetricExpr": "((L1I_DIR_WRITES + L1D_DIR_WRITES) / INSTRUCTIONS) * 100"
}
]
diff --git a/tools/perf/pmu-events/arch/s390/cf_z15/transaction.json b/tools/perf/pmu-events/arch/s390/cf_z15/transaction.json
index 1a0034f79f73..86bf83b4504e 100644
--- a/tools/perf/pmu-events/arch/s390/cf_z15/transaction.json
+++ b/tools/perf/pmu-events/arch/s390/cf_z15/transaction.json
@@ -3,5 +3,20 @@
"BriefDescription": "Transaction count",
"MetricName": "transaction",
"MetricExpr": "TX_C_TEND + TX_NC_TEND + TX_NC_TABORT + TX_C_TABORT_SPECIAL + TX_C_TABORT_NO_SPECIAL"
+ },
+ {
+ "BriefDescription": "Cycles per Instruction",
+ "MetricName": "cpi",
+ "MetricExpr": "CPU_CYCLES / INSTRUCTIONS"
+ },
+ {
+ "BriefDescription": "Problem State Instruction Ratio",
+ "MetricName": "prbstate",
+ "MetricExpr": "(PROBLEM_STATE_INSTRUCTIONS / INSTRUCTIONS) * 100"
+ },
+ {
+ "BriefDescription": "Level One Miss per 100 Instructions",
+ "MetricName": "l1mp",
+ "MetricExpr": "((L1I_DIR_WRITES + L1D_DIR_WRITES) / INSTRUCTIONS) * 100"
}
]
diff --git a/tools/perf/pmu-events/arch/s390/cf_z16/transaction.json b/tools/perf/pmu-events/arch/s390/cf_z16/transaction.json
index 1a0034f79f73..86bf83b4504e 100644
--- a/tools/perf/pmu-events/arch/s390/cf_z16/transaction.json
+++ b/tools/perf/pmu-events/arch/s390/cf_z16/transaction.json
@@ -3,5 +3,20 @@
"BriefDescription": "Transaction count",
"MetricName": "transaction",
"MetricExpr": "TX_C_TEND + TX_NC_TEND + TX_NC_TABORT + TX_C_TABORT_SPECIAL + TX_C_TABORT_NO_SPECIAL"
+ },
+ {
+ "BriefDescription": "Cycles per Instruction",
+ "MetricName": "cpi",
+ "MetricExpr": "CPU_CYCLES / INSTRUCTIONS"
+ },
+ {
+ "BriefDescription": "Problem State Instruction Ratio",
+ "MetricName": "prbstate",
+ "MetricExpr": "(PROBLEM_STATE_INSTRUCTIONS / INSTRUCTIONS) * 100"
+ },
+ {
+ "BriefDescription": "Level One Miss per 100 Instructions",
+ "MetricName": "l1mp",
+ "MetricExpr": "((L1I_DIR_WRITES + L1D_DIR_WRITES) / INSTRUCTIONS) * 100"
}
]
--
2.39.1