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authorDave Wallace <dwallacelf@gmail.com>2020-01-21 19:02:14 +0000
committerVratko Polak <vrpolak@cisco.com>2020-01-28 14:35:46 +0000
commitb340b5c9925b43869b91197850504760757a0bfe (patch)
treef95b3f6c94b1385443458252e52b711099414da3 /resources/libraries/python/HoststackUtil.py
parent0c6d1142326b6953b972733c4fa3bddf078ec802 (diff)
perf: hoststack iperf3 test tuning
Change-Id: I53425f57fe9ecef9cff2c94642cc7cb24537a961 Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Diffstat (limited to 'resources/libraries/python/HoststackUtil.py')
-rw-r--r--resources/libraries/python/HoststackUtil.py14
1 files changed, 8 insertions, 6 deletions
diff --git a/resources/libraries/python/HoststackUtil.py b/resources/libraries/python/HoststackUtil.py
index ad95d5114d..670a81b19b 100644
--- a/resources/libraries/python/HoststackUtil.py
+++ b/resources/libraries/python/HoststackUtil.py
@@ -94,9 +94,9 @@ class HoststackUtil():
if u"parallel" in iperf3_attributes:
iperf3_cmd[u"args"] += \
f" --parallel {iperf3_attributes[u'parallel']}"
- if u"bytes" in iperf3_attributes:
+ if u"time" in iperf3_attributes:
iperf3_cmd[u"args"] += \
- f" --bytes {iperf3_attributes[u'bytes']}"
+ f" --time {iperf3_attributes[u'time']}"
return iperf3_cmd
@staticmethod
@@ -162,20 +162,22 @@ class HoststackUtil():
return stdout_log, stderr_log
@staticmethod
- def start_hoststack_test_program(node, namespace, program):
+ def start_hoststack_test_program(node, namespace, core_list, program):
"""Start the specified HostStack test program.
:param node: DUT node.
:param namespace: Net Namespace to run program in.
+ :param core_list: List of cpu's to pass to taskset to pin the test
+ program to a different set of cores on the same numa node as VPP.
:param program: Test program.
:type node: dict
:type namespace: str
+ :type core_list: str
:type program: dict
:returns: Process ID
:rtype: int
:raises RuntimeError: If node subtype is not a DUT or startup failed.
"""
- # TODO: Pin test program to core(s) on same numa node as VPP.
if node[u"type"] != u"DUT":
raise RuntimeError(u"Node type is not a DUT!")
@@ -189,8 +191,8 @@ class HoststackUtil():
env_vars = f"{program[u'env_vars']} " if u"env_vars" in program else u""
args = program[u"args"]
- cmd = f"nohup {shell_cmd} \'{env_vars}{program_name} {args} " \
- f">/tmp/{program_name}_stdout.log " \
+ cmd = f"nohup {shell_cmd} \'{env_vars}taskset --cpu-list {core_list} " \
+ f"{program_name} {args} >/tmp/{program_name}_stdout.log " \
f"2>/tmp/{program_name}_stderr.log &\'"
try:
exec_cmd_no_error(node, cmd, sudo=True)