Linux: skip offline cpu cores in cpu_freq (#2376)

Signed-off-by: shadeyg56 <[email protected]>
giampaolo · Feb 26, 2024 · 4cf56e0 · 4cf56e0
1 parent da0b7c6
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diff --git a/CREDITS b/CREDITS
@@ -821,3 +821,7 @@ I: 2222
 N: Ryan Carsten Schmidt
 W: https://github.com/ryandesign
 I: 2361
+
+N: Shade Gladden
+W: https://github.com/shadeyg56
+I: 2376
diff --git a/HISTORY.rst b/HISTORY.rst
@@ -6,6 +6,7 @@
 **Bug fixes**
 
 - 2360_, [macOS]: can't compile on macOS < 10.13.  (patch by Ryan Schmidt)
+- 2254_, [Linux]: offline cpus raise NotImplementedError in cpu_freq() (patch by Shade Gladden)
 
 5.9.8
 =====

diff --git a/psutil/_pslinux.py b/psutil/_pslinux.py
@@ -779,6 +779,13 @@ def cpu_freq():
                 # https://github.com/giampaolo/psutil/issues/1071
                 curr = bcat(pjoin(path, "cpuinfo_cur_freq"), fallback=None)
                 if curr is None:
+                    online_path = (
+                        "/sys/devices/system/cpu/cpu{}/online".format(i)
+                    )
+                    # if cpu core is offline, set to all zeroes
+                    if cat(online_path, fallback=None) == "0\n":
+                        ret.append(_common.scpufreq(0.0, 0.0, 0.0))
+                        continue
                     msg = "can't find current frequency file"
                     raise NotImplementedError(msg)
             curr = int(curr) / 1000