Add package2cpus and packages2uncores matcher functions

Allow to specify CPUs and uncores using package (socket) number.

type=cpu
devices=${f:package2cpus:2}  # cpus from package 2

type=cpu
devices=${f:package2cpus:1*} # cpus from any package started from 1 i.e. 11, 12, 13 ...

type=uncore
devices=${f:package2uncores:1:5:9}  # uncores from package 1, 5 and 9

Signed-off-by: Stanislaw Gruszka <[email protected]>

tuned/profiles/functions/function_package2cpus.py

@@ -0,0 +1,59 @@
+import os
+import fnmatch
+
+from . import base
+from tuned.utils.commands import commands
+from tuned import logs
+
+log = logs.get()
+cmd = commands()
+
+SYSFS_DIR = "/sys/devices/system/cpu/"
+
+class package2cpus(base.Function):
+	"""
+	Provides cpu device list for a package (socket)
+	"""
+
+	def __init__(self):
+		super(package2cpus, self).__init__("package2cpus", 0)
+
+	def execute(self, args):
+		if not super(package2cpus, self).execute(args):
+			return None
+
+		if len(args) <= 0:
+			return None
+
+		try:
+			all_cpus = fnmatch.filter(os.listdir(SYSFS_DIR), "cpu[0-9]*")
+		except OSError:
+			return None
+
+		devices = []
+
+		for cpu in all_cpus:
+			f = SYSFS_DIR + cpu + "/topology/physical_package_id"
+			if not os.path.exists(f):
+				log.warning("File '%s' does not exist" % f)
+				continue
+
+			value = cmd.read_file(f)
+
+			try:
+				package_id = int(value)
+			except ValueError:
+				log.warning("Invalid package id '%s' for cpu '%s'" % (value, cpu))
+				continue
+
+			for package_pattern in args:
+				try:
+					this_package_id = int(package_pattern)
+				except ValueError:
+					if fnmatch.fnmatch(value, package_pattern):
+						devices.append(cpu)
+				else:
+					if package_id == this_package_id:
+						devices.append(cpu)
+
+		return ",".join(devices) if len(devices) > 0 else None

tuned/profiles/functions/function_package2uncores.py

@@ -0,0 +1,71 @@
+import os
+import fnmatch
+
+from . import base
+from tuned.utils.commands import commands
+from tuned import logs
+
+log = logs.get()
+cmd = commands()
+
+SYSFS_DIR = "/sys/devices/system/cpu/intel_uncore_frequency/"
+
+class package2uncores(base.Function):
+	"""
+	Provides uncore device list for a package (socket)
+	"""
+
+	def __init__(self):
+		super(package2uncores, self).__init__("package2uncores", 0)
+
+	def execute(self, args):
+		if not super(package2uncores, self).execute(args):
+			return None
+
+		if len(args) <= 0:
+			return None
+
+		try:
+			all_uncores = os.listdir(SYSFS_DIR)
+		except OSError:
+			return None
+
+		# For new TPMI interface use only uncore devices
+		tpmi_devices = fnmatch.filter(all_uncores, 'uncore*')
+		if len(tpmi_devices) > 0:
+			is_tpmi = True
+			all_uncores = tpmi_devices
+		else:
+			is_tpmi = False
+
+		devices = []
+
+		for uncore in all_uncores:
+			if is_tpmi:
+				f = SYSFS_DIR + uncore + "/package_id"
+				if not os.path.exists(f):
+					log.warning("File '%s' does not exist" % f)
+					continue
+
+				value = cmd.read_file(f)
+			else:
+				# uncore string is in form: package_NN_die_MM, do not expect more than 99 packages
+				value = uncore[8:10]
+
+			try:
+				package_id = int(value)
+			except ValueError:
+				log.warning("Invalid package id '%s' for uncore '%s'" % (value, uncore))
+				continue
+
+			for package_pattern in args:
+				try:
+					this_package_id = int(package_pattern)
+				except ValueError:
+					if fnmatch.fnmatch(value, package_pattern):
+						devices.append(uncore)
+				else:
+					if package_id == this_package_id:
+						devices.append(uncore)
+
+		return ",".join(devices) if len(devices) > 0 else None