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linux - High CPU usage by apache/httpd for light load, 'perf record' points at vmware/hardware - Server Fault
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Plesk website is slow and CPU and memory usage by Apache or PHP processes is high in Plesk – Plesk Help Center
High CPU usage [100%] with mod_wsgi and httpd, I'm using it for graphite-web · Issue #430 · GrahamDumpleton/mod_wsgi · GitHub
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