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From 26db89de18efad1b453618ea8156422d26e0c85f Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Jaroslav=20=C5=A0karvada?= <jskarvad@redhat.com>
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Date: Tue, 8 Jan 2019 15:00:33 +0100
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Subject: [PATCH] mssql: updated tuning
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Added vm plugin option 'transparent_hugepage.defrag'.
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Resolves: rhbz#1660178
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Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
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---
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profiles/mssql/tuned.conf | 9 ++++++++-
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tuned/plugins/plugin_vm.py | 32 +++++++++++++++++++++++++++-----
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2 files changed, 35 insertions(+), 6 deletions(-)
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diff --git a/profiles/mssql/tuned.conf b/profiles/mssql/tuned.conf
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index 2491717..35e208a 100644
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--- a/profiles/mssql/tuned.conf
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+++ b/profiles/mssql/tuned.conf
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@@ -6,5 +6,12 @@
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summary=Optimize for MS SQL Server
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include=throughput-performance
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+[vm]
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+transparent_hugepage.defrag=always
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+
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[sysctl]
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-vm.max_map_count=262144
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+vm.max_map_count=800000
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+kernel.numa_balancing=0
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+kernel.sched_latency_ns=60000000
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+kernel.sched_min_granularity_ns=15000000
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+kernel.sched_wakeup_granularity_ns=2000000
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diff --git a/tuned/plugins/plugin_vm.py b/tuned/plugins/plugin_vm.py
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index be570e2..9021ac3 100644
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--- a/tuned/plugins/plugin_vm.py
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+++ b/tuned/plugins/plugin_vm.py
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@@ -20,6 +20,7 @@ class VMPlugin(base.Plugin):
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return {
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"transparent_hugepages" : None,
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"transparent_hugepage" : None,
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+ "transparent_hugepage.defrag" : None,
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}
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def _instance_init(self, instance):
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@@ -30,10 +31,11 @@ class VMPlugin(base.Plugin):
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pass
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@classmethod
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- def _thp_file(self):
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- path = "/sys/kernel/mm/transparent_hugepage/enabled"
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+ def _thp_path(self):
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+ path = "/sys/kernel/mm/transparent_hugepage"
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if not os.path.exists(path):
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- path = "/sys/kernel/mm/redhat_transparent_hugepage/enabled"
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+ # RHEL-6 support
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+ path = "/sys/kernel/mm/redhat_transparent_hugepage"
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return path
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@command_set("transparent_hugepages")
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@@ -49,7 +51,7 @@ class VMPlugin(base.Plugin):
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log.info("transparent_hugepage is already set in kernel boot cmdline, ingoring value from profile")
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return None
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- sys_file = self._thp_file()
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+ sys_file = os.path.join(self._thp_path(), "enabled")
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if os.path.exists(sys_file):
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if not sim:
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cmd.write_to_file(sys_file, value)
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@@ -66,7 +68,7 @@ class VMPlugin(base.Plugin):
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@command_get("transparent_hugepages")
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def _get_transparent_hugepages(self):
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- sys_file = self._thp_file()
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+ sys_file = os.path.join(self._thp_path(), "enabled")
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if os.path.exists(sys_file):
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return cmd.get_active_option(cmd.read_file(sys_file))
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else:
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@@ -76,3 +78,23 @@ class VMPlugin(base.Plugin):
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@command_get("transparent_hugepage")
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def _get_transparent_hugepage(self):
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return self._get_transparent_hugepages()
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+
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+ @command_set("transparent_hugepage.defrag")
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+ def _set_transparent_hugepage_defrag(self, value, sim):
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+ sys_file = os.path.join(self._thp_path(), "defrag")
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+ if os.path.exists(sys_file):
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+ if not sim:
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+ cmd.write_to_file(sys_file, value)
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+ return value
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+ else:
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+ if not sim:
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+ log.warn("Option 'transparent_hugepage.defrag' is not supported on current hardware.")
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+ return None
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+
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+ @command_get("transparent_hugepage.defrag")
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+ def _get_transparent_hugepage_defrag(self):
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+ sys_file = os.path.join(self._thp_path(), "defrag")
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+ if os.path.exists(sys_file):
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+ return cmd.get_active_option(cmd.read_file(sys_file))
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+ else:
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+ return None
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--
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2.20.1
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