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scripts/nvmf_perf: set cpu governor to performance

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In performance tests always use best performance policy.
Previously this was manually managed on test systems,
but it's better to do this automatically every time.

Change-Id: Iff81863cf8d9cc713a3c4cce1d8edf7ebbf81c84
Signed-off-by: Karol Latecki <karol.latecki@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6373
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Michal Berger <michalx.berger@intel.com>
Reviewed-by: Maciej Wawryk <maciejx.wawryk@intel.com>
This commit is contained in:
Karol Latecki 2021-02-04 17:26:17 +01:00 committed by Jim Harris
parent 2f9103304f
commit 3992eb2896
1 changed files with 17 additions and 0 deletions
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17
scripts/perf/nvmf/run_nvmf.py
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@ -34,6 +34,7 @@ class Server:
self.svc_restore_dict = {}
self.sysctl_restore_dict = {}
self.tuned_restore_dict = {}
self.governor_restore = ""
self.tuned_profile = ""
self.enable_adq = False
@ -89,6 +90,7 @@ class Server:
self.configure_services()
self.configure_sysctl()
self.configure_tuned()
self.configure_cpu_governor()
def configure_adq(self):
self.adq_load_modules()
@ -216,6 +218,13 @@ class Server:
self.exec_cmd(["sudo", "tuned-adm", "profile", self.tuned_profile])
self.log_print("Tuned profile set to %s." % self.exec_cmd(["cat", "/etc/tuned/active_profile"]))
def configure_cpu_governor(self):
self.log_print("Setting CPU governor to performance...")
# This assumes that there is the same CPU scaling governor on each CPU
self.governor_restore = self.exec_cmd(["cat", "/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor"]).strip()
self.exec_cmd(["sudo", "cpupower", "frequency-set", "-g", "performance"])
def restore_services(self):
self.log_print("Restoring services...")
for service, state in self.svc_restore_dict.items():
@ -240,6 +249,12 @@ class Server:
self.exec_cmd(["sudo", "tuned-adm", "profile", self.tuned_restore_dict["profile"]])
self.log_print("Reverted tuned-adm to %s profile." % self.tuned_restore_dict["profile"])
def restore_governor(self):
self.log_print("Restoring CPU governor setting...")
if self.governor_restore:
self.exec_cmd(["sudo", "cpupower", "frequency-set", "-g", self.governor_restore])
self.log_print("Reverted CPU governor to %s." % self.governor_restore)
class Target(Server):
def __init__(self, name, general_config, target_config):
@ -1289,10 +1304,12 @@ if __name__ == "__main__":
i.kernel_init_disconnect(i.remote_nic_ips, target_obj.subsys_no)
i.copy_result_files(target_results_dir)
target_obj.restore_governor()
target_obj.restore_tuned()
target_obj.restore_services()
target_obj.restore_sysctl()
for i in initiators:
i.restore_governor()
i.restore_tuned()
i.restore_services()
i.restore_sysctl()