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plugin_cpu: decrease the severity of _has_pm_qos==False

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The feature depends on kernel configuration (CONFIG_CPU_IDLE).
While this seems to be commonly enabled on x86, we've seen ARM
systems where it's disabled, and in this case it's perfectly valid
for /dev/cpu_dma_latency to be missing.
Since we cannot opt-out of the PM QoS feature in the cpu plugin, this
case should not be an error.

Signed-off-by: Adriaan Schmidt <adriaan.schmidt@siemens.com>
This commit is contained in:
Adriaan Schmidt 2024-04-09 11:26:01 +02:00
parent 1fb7c803b6
commit 2a17fba827
1 changed files with 1 additions and 1 deletions
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2
tuned/plugins/plugin_cpu.py
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@ -325,7 +325,7 @@ class CPULatencyPlugin(hotplug.Plugin):
try:
self._cpu_latency_fd = os.open(consts.PATH_CPU_DMA_LATENCY, os.O_WRONLY)
except OSError:
log.error("Unable to open '%s', disabling PM_QoS control" % consts.PATH_CPU_DMA_LATENCY)
log.info("Unable to open '%s', disabling PM_QoS control" % consts.PATH_CPU_DMA_LATENCY)
self._has_pm_qos = False
self._latency = None