<p>Alejandro Leal has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.osmocom.org/c/osmo-gsm-tester/+/24270">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">ms-srs: change the cpu governor before launching the ms.<br><br>Added the feature to change the cpu governor to the given one before executing the ms-srs.<br>When the execution finishes, the cpu governor will be set to powersave.<br><br>Change-Id: I86ec4fbba8a965e60103b30e2aa60cd2c3f348c9<br>---<br>M src/osmo_gsm_tester/core/remote.py<br>M src/osmo_gsm_tester/obj/ms_srs.py<br>A utils/bin/osmo-gsm-tester_change_cpu_governor.sh<br>A utils/sudoers.d/osmo-gsm-tester_change_cpu_governor<br>4 files changed, 38 insertions(+), 1 deletion(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.osmocom.org:29418/osmo-gsm-tester refs/changes/70/24270/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/src/osmo_gsm_tester/core/remote.py b/src/osmo_gsm_tester/core/remote.py</span><br><span>index 0ea873d..fb446a6 100644</span><br><span>--- a/src/osmo_gsm_tester/core/remote.py</span><br><span>+++ b/src/osmo_gsm_tester/core/remote.py</span><br><span>@@ -158,6 +158,15 @@</span><br><span>     def scpfrom(self, name, remote_path, local_path):</span><br><span>         process.run_local_sync(self.run_dir, name, ('scp', '-r', '%s@%s:%s' % (self.user(), self.host(), remote_path), local_path))</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+    def set_cpu_governor(self, mode):</span><br><span style="color: hsl(120, 100%, 40%);">+        '''</span><br><span style="color: hsl(120, 100%, 40%);">+        This functionality requires specific setup on the host running</span><br><span style="color: hsl(120, 100%, 40%);">+        osmo-gsm-tester. See osmo-gsm-tester manual for more information.</span><br><span style="color: hsl(120, 100%, 40%);">+        '''</span><br><span style="color: hsl(120, 100%, 40%);">+        self.log(f'Set cpu governor to {mode}')</span><br><span style="color: hsl(120, 100%, 40%);">+        SET_CPU_GOVERNOR_BIN = 'osmo-gsm-tester_change_cpu_governor.sh'</span><br><span style="color: hsl(120, 100%, 40%);">+        self.run_remote_sync('change-cpu-governor', ('sudo', SET_CPU_GOVERNOR_BIN, mode))</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span>     def setcap_net_admin(self, binary_path):</span><br><span>         '''</span><br><span>         This functionality requires specific setup on the host running</span><br><span>diff --git a/src/osmo_gsm_tester/obj/ms_srs.py b/src/osmo_gsm_tester/obj/ms_srs.py</span><br><span>index ec4486f..6aaa1c9 100644</span><br><span>--- a/src/osmo_gsm_tester/obj/ms_srs.py</span><br><span>+++ b/src/osmo_gsm_tester/obj/ms_srs.py</span><br><span>@@ -45,7 +45,8 @@</span><br><span>         'freq_offset': schema.INT,</span><br><span>         'force_ul_amplitude': schema.STR,</span><br><span>         'dl_freq': schema.STR,</span><br><span style="color: hsl(0, 100%, 40%);">-        'ul_freq': schema.STR</span><br><span style="color: hsl(120, 100%, 40%);">+        'ul_freq': schema.STR,</span><br><span style="color: hsl(120, 100%, 40%);">+        'cpu_governor': schema.STR</span><br><span>         }</span><br><span>     for key, val in RunNode.schema().items():</span><br><span>         resource_schema['run_node.%s' % key] = val</span><br><span>@@ -104,6 +105,7 @@</span><br><span>         self.remote_log_file = None</span><br><span>         self.remote_pcap_file = None</span><br><span>         self.remote_metrics_file = None</span><br><span style="color: hsl(120, 100%, 40%);">+        self.remote_cpu_governor = None</span><br><span>         self.enable_pcap = False</span><br><span>         self.num_carriers = 1</span><br><span>         self.num_nr_carriers = 0</span><br><span>@@ -121,6 +123,10 @@</span><br><span>         if self._run_node.is_local():</span><br><span>             return</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+        # Restore the cpu governor.</span><br><span style="color: hsl(120, 100%, 40%);">+        if self.remote_cpu_governor:</span><br><span style="color: hsl(120, 100%, 40%);">+            self.rem_host.set_cpu_governor('powersave')</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span>         # Make sure we give the UE time to tear down</span><br><span>         self.sleep_after_stop()</span><br><span> </span><br><span>@@ -186,6 +192,10 @@</span><br><span>         self.process.stdin_write('t\n')</span><br><span> </span><br><span>     def start_remotely(self):</span><br><span style="color: hsl(120, 100%, 40%);">+        # Set the cpu governor to performance.</span><br><span style="color: hsl(120, 100%, 40%);">+        if self.remote_cpu_governor:</span><br><span style="color: hsl(120, 100%, 40%);">+            self.rem_host.set_cpu_governor(self.remote_cpu_governor)</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span>         remote_lib = self.remote_inst.child('lib')</span><br><span>         remote_binary = self.remote_inst.child('bin', srsUE.BINFILE)</span><br><span>         # setting capabilities will later disable use of LD_LIBRARY_PATH from ELF loader -> modify RPATH instead.</span><br><span>@@ -271,6 +281,8 @@</span><br><span>         self.enable_pcap = util.str2bool(values['ue'].get('enable_pcap', 'false'))</span><br><span>         config.overlay(values, dict(ue={'enable_pcap': self.enable_pcap}))</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+        self.remote_cpu_governor = self._conf.get('cpu_governor', None)</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span>         self._additional_args = []</span><br><span>         for add_args in values['ue'].get('additional_args', []):</span><br><span>             self._additional_args += add_args.split()</span><br><span>diff --git a/utils/bin/osmo-gsm-tester_change_cpu_governor.sh b/utils/bin/osmo-gsm-tester_change_cpu_governor.sh</span><br><span>new file mode 100755</span><br><span>index 0000000..92e797c</span><br><span>--- /dev/null</span><br><span>+++ b/utils/bin/osmo-gsm-tester_change_cpu_governor.sh</span><br><span>@@ -0,0 +1,14 @@</span><br><span style="color: hsl(120, 100%, 40%);">+#!/bin/bash</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+# This script changes the cpu governor mode to the given first argument.</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+echo "Script to change the cpu governor"</span><br><span style="color: hsl(120, 100%, 40%);">+echo "changing the cpu governor to $1"</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+for f in /sys/devices/system/cpu/cpu[0-9]*/cpufreq/scaling_governor ; do </span><br><span style="color: hsl(120, 100%, 40%);">+  echo $1 > $f</span><br><span style="color: hsl(120, 100%, 40%);">+  cat $f </span><br><span style="color: hsl(120, 100%, 40%);">+done</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+exit $?</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span>diff --git a/utils/sudoers.d/osmo-gsm-tester_change_cpu_governor b/utils/sudoers.d/osmo-gsm-tester_change_cpu_governor</span><br><span>new file mode 100644</span><br><span>index 0000000..aba27a7</span><br><span>--- /dev/null</span><br><span>+++ b/utils/sudoers.d/osmo-gsm-tester_change_cpu_governor</span><br><span>@@ -0,0 +1,2 @@</span><br><span style="color: hsl(120, 100%, 40%);">+%osmo-gsm-tester ALL=(root) NOPASSWD: /usr/local/bin/osmo-gsm-tester_change_cpu_governor.sh</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/c/osmo-gsm-tester/+/24270">change 24270</a>. To unsubscribe, or for help writing mail filters, visit <a href="https://gerrit.osmocom.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://gerrit.osmocom.org/c/osmo-gsm-tester/+/24270"/><meta itemprop="name" content="View Change"/></div></div>

<div style="display:none"> Gerrit-Project: osmo-gsm-tester </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-Change-Id: I86ec4fbba8a965e60103b30e2aa60cd2c3f348c9 </div>
<div style="display:none"> Gerrit-Change-Number: 24270 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: Alejandro Leal <alejandro.leal@srs.io> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>