Resolve regex library deprecation warnings

[emmanuel-ferdman]

PR Summary

This small PR resolves the regex library warnings showing starting Python3.11 which you can find in the CI logs:

/home/runner/work/perfmon/perfmon/scripts/create_perf_json.py:1542: DeprecationWarning: 'count' is passed as positional argument

[edwarddavidbaker]

form = re.sub(r':USER', ':u', form, re.IGNORECASE)
form = re.sub(r':SUP', ':k', form, re.IGNORECASE)

Previous regex substitutions were accidentally passing passing flags into the count argument https://docs.python.org/3/library/re.html#re.sub .

re.sub(pattern, repl, string, count=0, flags=0)

---

This pull request does result in output differences.

diff -rup main/alderlaken/adln-metrics.json emmanuel-ferdman/alderlaken/adln-metrics.json
--- main/alderlaken/adln-metrics.json   2025-05-28 06:15:25.534862815 -0700
+++ emmanuel-ferdman/alderlaken/adln-metrics.json       2025-05-28 06:15:51.094856988 -0700
@@ -465,7 +465,7 @@
     },
     {
         "BriefDescription": "Fraction of cycles spent in Kernel mode",
-        "MetricExpr": "cpu@CPU_CLK_UNHALTED.CORE_P@k / CPU_CLK_UNHALTED.CORE",
+        "MetricExpr": "CPU_CLK_UNHALTED.CORE_P:k / CPU_CLK_UNHALTED.CORE",
         "MetricGroup": "Summary",
         "MetricName": "tma_info_system_kernel_utilization"
     },
diff -rup main/grandridge/grr-metrics.json emmanuel-ferdman/grandridge/grr-metrics.json
--- main/grandridge/grr-metrics.json    2025-05-28 06:15:28.094862273 -0700
+++ emmanuel-ferdman/grandridge/grr-metrics.json        2025-05-28 06:15:53.854856286 -0700
@@ -627,7 +627,7 @@
     },
     {
         "BriefDescription": "Fraction of cycles spent in Kernel mode",
-        "MetricExpr": "cpu@CPU_CLK_UNHALTED.CORE_P@k / CPU_CLK_UNHALTED.CORE",
+        "MetricExpr": "CPU_CLK_UNHALTED.CORE_P:k / CPU_CLK_UNHALTED.CORE",
         "MetricGroup": "Summary",
         "MetricName": "tma_info_system_kernel_utilization"
     },
diff -rup main/sierraforest/srf-metrics.json emmanuel-ferdman/sierraforest/srf-metrics.json
--- main/sierraforest/srf-metrics.json  2025-05-28 06:15:32.414861362 -0700
+++ emmanuel-ferdman/sierraforest/srf-metrics.json      2025-05-28 06:15:58.744854889 -0700
@@ -699,7 +699,7 @@
     },
     {
         "BriefDescription": "Fraction of cycles spent in Kernel mode",
-        "MetricExpr": "cpu@CPU_CLK_UNHALTED.CORE_P@k / CPU_CLK_UNHALTED.CORE",
+        "MetricExpr": "CPU_CLK_UNHALTED.CORE_P:k / CPU_CLK_UNHALTED.CORE",
         "MetricGroup": "Summary",
         "MetricName": "tma_info_system_kernel_utilization"
     },

[edwarddavidbaker]

Thanks for opening a pull request @emmanuel-ferdman .

[emmanuel-ferdman]

@edwarddavidbaker anything else is need from my side? thanks 🙌