diff --git a/wa/workloads/schbench/__init__.py b/wa/workloads/schbench/__init__.py
new file mode 100644
index 00000000..469352db
--- /dev/null
+++ b/wa/workloads/schbench/__init__.py
@@ -0,0 +1,109 @@
+# Copyright 2022 ARM Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import re
+
+from wa import Workload, Parameter, Executable
+from wa.utils.exec_control import once
+
+timeout_buffer = 10
+
+regex_map = {"50.0th": re.compile(r'50.0th: (\d+)'),
+ "75.0th": re.compile(r'75.0th: (\d+)'),
+ "90.0th": re.compile(r'90.0th: (\d+)'),
+ "95.0th": re.compile(r'95.0th: (\d+)'),
+ "*99.0th": re.compile(r'\*99.0th: (\d+)'),
+ "99.5th": re.compile(r'99.5th: (\d+)'),
+ "99.9th": re.compile(r'99.9th: (\d+)'),
+ "min": re.compile(r'min=(\d+)'),
+ "max": re.compile(r'max=(\d+)')
+ }
+
+
+class Schbench(Workload):
+ name = 'schbench'
+ description = """
+ Benchmark providing detailed latency distribution statistics for scheduler
+ wakeups.
+ """
+
+ parameters = [
+ Parameter('runtime', kind=int, default=30, aliases=['timeout'],
+ description='How long to run before exiting (seconds)'),
+ Parameter('message_threads', kind=int, default=2,
+ description='number of message threads'),
+ Parameter('threads', kind=int, default=16,
+ description='worker threads per message thread'),
+ Parameter('sleeptime', kind=int, default=30000,
+ description='Message thread latency (usec)'),
+ Parameter('cputime', kind=int, default=30000,
+ description='How long to think during loop'),
+ Parameter('auto', kind=bool, default=False,
+ description='grow thread count until latencies hurt'),
+ Parameter('pipe', kind=int, default=0,
+ description='transfer size bytes to simulate a pipe test'),
+ Parameter('rps', kind=int, default=0,
+ description='requests per second mode (count)'),
+ Parameter('intervaltime', kind=int,
+ description='interval for printing latencies (seconds)'),
+ ]
+
+ binary_name = 'schbench'
+ schbench_results_txt = 'schbench_results.txt'
+ output_unit = 'usec'
+
+ @once
+ def initialize(self, context):
+ host_binary = context.get_resource(
+ Executable(self, self.target.abi, self.binary_name))
+ Schbench.target_binary = self.target.install(host_binary)
+
+ def setup(self, context):
+ self.target_output_file = self.target.get_workpath(
+ self.schbench_results_txt)
+ self.run_timeout = self.runtime + timeout_buffer
+ self.command = "{} -m {} -t {} -r {} -s {} -c {} -p {} -R {} -i {} {}"
+ self.command = self.command.format(
+ self.target_binary, self.message_threads, self.threads,
+ self.runtime, self.sleeptime, self.cputime, self.pipe, self.rps,
+ self.runtime if not self.intervaltime else self.intervaltime,
+ '-a' if self.auto else '',
+ )
+
+ def run(self, context):
+ self.output = self.target.execute(
+ self.command, timeout=self.run_timeout)
+
+ def extract_results(self, context):
+ host_output_file = os.path.join(
+ context.output_directory, self.schbench_results_txt)
+ with open(host_output_file, "w") as f:
+ f.write(self.output)
+ context.add_artifact('schbench-results', host_output_file, kind='raw')
+
+ def update_output(self, context):
+ results_file = context.get_artifact_path('schbench-results')
+ with open(results_file) as fh:
+ for line in fh:
+ for label, regex in regex_map.items():
+ match = regex.search(line)
+ if match:
+ context.add_metric(label, float(match.group(1)),
+ self.output_unit)
+
+ @once
+ def finalize(self, context):
+ if self.uninstall:
+ self.target.uninstall(self.binary_name)
diff --git a/wa/workloads/schbench/bin/arm64/schbench b/wa/workloads/schbench/bin/arm64/schbench
new file mode 100755
index 00000000..4d20297b
Binary files /dev/null and b/wa/workloads/schbench/bin/arm64/schbench differ
diff --git a/wa/workloads/schbench/src/LICENSE b/wa/workloads/schbench/src/LICENSE
new file mode 100644
index 00000000..654fb585
--- /dev/null
+++ b/wa/workloads/schbench/src/LICENSE
@@ -0,0 +1,10 @@
+schbench copyright notice
+
+Copyright (C) 2016 Facebook
+Chris Mason <clm@fb.com>
+
+GPLv2, portions copied from the kernel and from Jens Axboe's fio
+
+Sources can be obtained from:
+
+https://git.kernel.org/pub/scm/linux/kernel/git/mason/schbench.git/