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| author |   Peter Mikus <pmikus@cisco.com> | 2020-04-03 08:14:50 +0000 |
|---|---|---|
| committer | Peter Mikus <pmikus@cisco.com> | 2020-04-09 11:00:33 +0000 |
| commit | 8fcb84c0495e364daf65745a9b23b0d6f0a1d51e (patch) | |
| tree | da56330e5424c5c3a5bc323dc83dda13aac4e58a /resources/tools/testbed-setup/ansible/roles/performance_tuning | |
| parent | 8e3a326cba182b4ab9054263625c7e40cdd6f2e3 (diff) | |
Ansible: Kernel installation
Signed-off-by: Peter Mikus <pmikus@cisco.com>
Change-Id: Iee65272169339ed0e5561cf3dee11567335b12be
Diffstat (limited to 'resources/tools/testbed-setup/ansible/roles/performance_tuning')
3 files changed, 31 insertions, 3 deletions
diff --git a/resources/tools/testbed-setup/ansible/roles/performance_tuning/files/irqbalance b/resources/tools/testbed-setup/ansible/roles/performance_tuning/files/irqbalance index 98ba483b0d..861be02fb3 100644 --- a/resources/tools/testbed-setup/ansible/roles/performance_tuning/files/irqbalance +++ b/resources/tools/testbed-setup/ansible/roles/performance_tuning/files/irqbalance @@ -17,8 +17,7 @@ # corresponding bits set to one in this mask will not have any # irq's assigned to them on rebalance # -IRQBALANCE_BANNED_CPUS=ffffffff,ffffffff,ffffffff,fffffffe - +IRQBALANCE_BANNED_CPUS="{{ ansible_processor_cores | irqbalance_banned_cpu_mask(ansible_processor_count, ansible_processor_threads_per_core) }}" # # IRQBALANCE_ARGS # append any args here to the irqbalance daemon as documented in the man page diff --git a/resources/tools/testbed-setup/ansible/roles/performance_tuning/filter_plugins/main.py b/resources/tools/testbed-setup/ansible/roles/performance_tuning/filter_plugins/main.py new file mode 100644 index 0000000000..d76f6fe166 --- /dev/null +++ b/resources/tools/testbed-setup/ansible/roles/performance_tuning/filter_plugins/main.py @@ -0,0 +1,29 @@ +"""Extra Ansible filters""" + +def irqbalance_banned_cpu_mask( + processor_cores, processor_count, processor_threads_per_core): + """ + Return irqbalance CPU mask. + Args: + processor_cores (int): Physical processor unit. + processor_counts (int): Processors per physical unit. + processor_threads_per_core (int): Threads per physical unit. + Returns: + str: irqbalance_banned_cpus. + """ + mask = int("1" * 128, 2) + + for i in range(processor_count * processor_threads_per_core): + mask &= ~(1 << i * processor_cores) + + import re + return ",".join(re.findall('.{1,8}', str(hex(mask))[2:])) + + +class FilterModule(object): + """Return filter plugin""" + + @staticmethod + def filters(): + """Return filter""" + return {'irqbalance_banned_cpu_mask': irqbalance_banned_cpu_mask} diff --git a/resources/tools/testbed-setup/ansible/roles/performance_tuning/tasks/main.yaml b/resources/tools/testbed-setup/ansible/roles/performance_tuning/tasks/main.yaml index 49a20882b9..67da43b996 100644 --- a/resources/tools/testbed-setup/ansible/roles/performance_tuning/tasks/main.yaml +++ b/resources/tools/testbed-setup/ansible/roles/performance_tuning/tasks/main.yaml @@ -149,7 +149,7 @@ - copy-cpufrequtils - name: Performance Tuning - Copy Irqbalance File - copy: + template: src: "files/irqbalance" dest: "/etc/default/irqbalance" owner: "root" |