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-rw-r--r--tests/charmhelpers/core/hugepage.py69
1 files changed, 0 insertions, 69 deletions
diff --git a/tests/charmhelpers/core/hugepage.py b/tests/charmhelpers/core/hugepage.py
deleted file mode 100644
index 54b5b5e..0000000
--- a/tests/charmhelpers/core/hugepage.py
+++ /dev/null
@@ -1,69 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# Copyright 2014-2015 Canonical 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 yaml
-from charmhelpers.core import fstab
-from charmhelpers.core import sysctl
-from charmhelpers.core.host import (
- add_group,
- add_user_to_group,
- fstab_mount,
- mkdir,
-)
-from charmhelpers.core.strutils import bytes_from_string
-from subprocess import check_output
-
-
-def hugepage_support(user, group='hugetlb', nr_hugepages=256,
- max_map_count=65536, mnt_point='/run/hugepages/kvm',
- pagesize='2MB', mount=True, set_shmmax=False):
- """Enable hugepages on system.
-
- Args:
- user (str) -- Username to allow access to hugepages to
- group (str) -- Group name to own hugepages
- nr_hugepages (int) -- Number of pages to reserve
- max_map_count (int) -- Number of Virtual Memory Areas a process can own
- mnt_point (str) -- Directory to mount hugepages on
- pagesize (str) -- Size of hugepages
- mount (bool) -- Whether to Mount hugepages
- """
- group_info = add_group(group)
- gid = group_info.gr_gid
- add_user_to_group(user, group)
- if max_map_count < 2 * nr_hugepages:
- max_map_count = 2 * nr_hugepages
- sysctl_settings = {
- 'vm.nr_hugepages': nr_hugepages,
- 'vm.max_map_count': max_map_count,
- 'vm.hugetlb_shm_group': gid,
- }
- if set_shmmax:
- shmmax_current = int(check_output(['sysctl', '-n', 'kernel.shmmax']))
- shmmax_minsize = bytes_from_string(pagesize) * nr_hugepages
- if shmmax_minsize > shmmax_current:
- sysctl_settings['kernel.shmmax'] = shmmax_minsize
- sysctl.create(yaml.dump(sysctl_settings), '/etc/sysctl.d/10-hugepage.conf')
- mkdir(mnt_point, owner='root', group='root', perms=0o755, force=False)
- lfstab = fstab.Fstab()
- fstab_entry = lfstab.get_entry_by_attr('mountpoint', mnt_point)
- if fstab_entry:
- lfstab.remove_entry(fstab_entry)
- entry = lfstab.Entry('nodev', mnt_point, 'hugetlbfs',
- 'mode=1770,gid={},pagesize={}'.format(gid, pagesize), 0, 0)
- lfstab.add_entry(entry)
- if mount:
- fstab_mount(mnt_point)

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