added postgresql server profile
A new tuned profile for PostgreSQL database server. This profile is based of information collected from various presentations about Linux tuning at PGConf. See: https://www.socallinuxexpo.org/sites/default/files/presentations/scale_kosmodemiansky_linux_internals.pdf Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
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Tigran Mkrtchyan
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15 changed files with 142 additions and 0 deletions
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@ -45,6 +45,8 @@ A profile optimized for Oracle databases loads based on `throughput-performance`
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`desktop`::
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A profile optimized for desktops, based on the `balanced` profile. It additionally enables scheduler autogroups for better response of interactive applications.
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`postgresql`::
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A profile optimized for PostgreSQL databases loads based on `throughput-performance` profile. It additionally disables transparent huge pages and modifies other performance-related kernel parameters. This profile is provided by the [package]`tuned-profiles-postgresql` package.
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[discrete]
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== Real-time profiles
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@ -117,6 +117,7 @@ Unload tunings.
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.BR tuned\-profiles\-nfv\-host (7)
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.BR tuned\-profiles\-nfv\-guest (7)
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.BR tuned\-profiles\-compat (7)
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.BR tuned\-profiles\-postgresql (7)
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.SH AUTHOR
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.nf
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Jaroslav Škarvada <jskarvad@redhat.com>
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@ -59,6 +59,7 @@ netfilter connections tracking.
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.BR tuned\-profiles\-nfv\-guest (7)
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.BR tuned\-profiles\-cpu\-partitioning (7)
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.BR tuned\-profiles\-compat (7)
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.BR tuned\-profiles\-postgresql (7)
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.SH AUTHOR
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.nf
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Jaroslav Škarvada <jskarvad@redhat.com>
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@ -44,6 +44,7 @@ throughput-performance profile.
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.BR tuned\-profiles\-nfv\-guest (7)
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.BR tuned\-profiles\-cpu\-partitioning (7)
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.BR tuned\-profiles\-compat (7)
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.BR tuned\-profiles\-postgresql (7)
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.SH AUTHOR
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.nf
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Jaroslav Škarvada <jskarvad@redhat.com>
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@ -50,6 +50,7 @@ Profile optimized for virtual guests based on realtime profile.
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.BR tuned\-profiles\-nfv\-host (7)
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.BR tuned\-profiles\-cpu\-partitioning (7)
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.BR tuned\-profiles\-compat (7)
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.BR tuned\-profiles\-postgresql (7)
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.SH AUTHOR
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.nf
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Jaroslav Škarvada <jskarvad@redhat.com>
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@ -50,6 +50,7 @@ Profile optimized for virtual hosts based on realtime profile.
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.BR tuned\-profiles\-nfv\-guest (7)
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.BR tuned\-profiles\-cpu\-partitioning (7)
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.BR tuned\-profiles\-compat (7)
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.BR tuned\-profiles\-postgresql (7)
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.SH AUTHOR
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.nf
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Jaroslav Škarvada <jskarvad@redhat.com>
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@ -52,6 +52,7 @@ performance related kernel parameters.
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.BR tuned\-profiles\-nfv\-guest (7)
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.BR tuned\-profiles\-cpu\-partitioning (7)
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.BR tuned\-profiles\-compat (7)
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.BR tuned\-profiles\-postgresql (7)
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.SH AUTHOR
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.nf
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Jaroslav Škarvada <jskarvad@redhat.com>
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61
man/tuned-profiles-postgresql.7
Normal file
61
man/tuned-profiles-postgresql.7
Normal file
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@ -0,0 +1,61 @@
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.\"/*
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.\" * All rights reserved
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.\" * Copyright (C) 2020 Red Hat, Inc.
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.\" * Copyright (C) 2020 Deutsches Elektronen-Synchrotron DESY
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.\" * Authors: Jaroslav Škarvada
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.\" * Tigran Mkrtchyan
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.\" *
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.\" * This program is free software; you can redistribute it and/or
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.\" * modify it under the terms of the GNU General Public License
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.\" * as published by the Free Software Foundation; either version 2
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.\" * of the License, or (at your option) any later version.
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.\" *
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.\" * This program is distributed in the hope that it will be useful,
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.\" * but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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.\" * GNU General Public License for more details.
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.\" *
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.\" * You should have received a copy of the GNU General Public License
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.\" * along with this program; if not, write to the Free Software
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.\" * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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.\" */
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.\"
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.TH TUNED_PROFILES_POSTGRESQL "7" "29 Jul 2020" "Fedora Power Management SIG" "tuned"
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.SH NAME
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tuned\-profiles\-postgresql - description of profiles provided for PostgreSQL Server
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.SH DESCRIPTION
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These profiles are provided for the PostgreSQL Database server.
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.SH PROFILES
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The following profiles are provided:
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.TP
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.BI "postgresql"
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Profile optimized for PostgreSQL databases based on throughput\-performance profile.
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It additionally disables transparent huge pages and modifies some other
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performance related kernel parameters.
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.SH "FILES"
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.nf
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.I /etc/tuned/*
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.I /usr/lib/tuned/*
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.SH "SEE ALSO"
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.BR tuned (8)
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.BR tuned\-adm (8)
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.BR tuned\-profiles (7)
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.BR tuned\-profiles\-sap (7)
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.BR tuned\-profiles\-sap\-hana (7)
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.BR tuned\-profiles\-oracle (7)
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.BR tuned\-profiles\-mssql (7)
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.BR tuned\-profiles\-atomic (7)
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.BR tuned\-profiles\-realtime (7)
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.BR tuned\-profiles\-nfv\-host (7)
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.BR tuned\-profiles\-nfv\-guest (7)
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.BR tuned\-profiles\-cpu\-partitioning (7)
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.BR tuned\-profiles\-compat (7)
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.SH AUTHOR
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.nf
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Jaroslav Škarvada <jskarvad@redhat.com>
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Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
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@ -50,6 +50,7 @@ Profile optimized for realtime.
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.BR tuned\-profiles\-nfv\-guest (7)
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.BR tuned\-profiles\-cpu\-partitioning (7)
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.BR tuned\-profiles\-compat (7)
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.BR tuned\-profiles\-postgresql (7)
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.SH AUTHOR
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.nf
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Jaroslav Škarvada <jskarvad@redhat.com>
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@ -55,6 +55,7 @@ semaphores.
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.BR tuned\-profiles\-nfv\-guest (7)
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.BR tuned\-profiles\-cpu-partitioning (7)
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.BR tuned\-profiles\-compat (7)
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.BR tuned\-profiles\-postgresql (7)
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.SH AUTHOR
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.nf
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Jaroslav Škarvada <jskarvad@redhat.com>
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@ -53,6 +53,7 @@ areas a process may have.
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.BR tuned\-profiles\-nfv\-guest (7)
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.BR tuned\-profiles\-cpu\-partitioning (7)
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.BR tuned\-profiles\-compat (7)
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.BR tuned\-profiles\-postgresql (7)
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.SH AUTHOR
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.nf
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Jaroslav Škarvada <jskarvad@redhat.com>
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@ -53,6 +53,7 @@ performance related kernel parameters.
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.BR tuned\-profiles\-nfv\-guest (7)
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.BR tuned\-profiles\-cpu\-partitioning (7)
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.BR tuned\-profiles\-compat (7)
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.BR tuned\-profiles\-postgresql (7)
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.SH AUTHOR
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.nf
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Luis Bolinches <luis.bolinches@fi.ibm.com>
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@ -153,6 +153,7 @@ profiles (e.g. throughput\-performance profile), example:
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.BR tuned\-profiles\-nfv\-guest (7)
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.BR tuned\-profiles\-cpu\-partitioning (7)
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.BR tuned\-profiles\-compat (7)
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.BR tuned\-profiles\-postgresql (7)
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.SH AUTHOR
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.nf
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Jaroslav Škarvada <jskarvad@redhat.com>
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55
profiles/postgresql/tuned.conf
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55
profiles/postgresql/tuned.conf
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@ -0,0 +1,55 @@
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#
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# tuned configuration for PostgreSQL servers
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#
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[main]
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summary=Optimize for PostgreSQL server
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include=throughput-performance
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[cpu]
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# The alternation of CPU bound load and disk IO operations of postgresql
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# db server suggest CPU to go into powersave mode.
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#
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# Explicitly disable deep c-states to reduce latency on OLTP workloads.
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force_latency=1
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[vm]
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transparent_hugepages=never
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[sysctl]
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# ktune sysctl settings for rhel6 servers, maximizing i/o throughput
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#
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# Minimal preemption granularity for CPU-bound tasks:
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# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
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kernel.sched_min_granularity_ns=10000000
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# The dirty_background_ratio and dirty_ratio controls percentage of memory
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# that file system cache have to fill with dirty data before kernel will
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# will start to flush data to disks. The default values are 10% and 20%
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# accordingly. On a systems with a big amount of memory this values can
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# be tens of gigabytes and produce IO spikes when PostgreSQL server writes
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# checkpoints.
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#
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# Keep this values reasonable small - about size of RAID controller write-back
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# cache size (typcal 512MB - 2GB).
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vm.dirty_background_ratio = 0
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vm.dirty_ratio = 0
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vm.dirty_background_bytes = 67108864
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vm.dirty_bytes = 536870912
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# The swappiness parameter controls the tendency of the kernel to move
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# processes out of physical memory and onto the swap disk.
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# 0 tells the kernel to avoid swapping processes out of physical memory
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# for as long as possible
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# 100 tells the kernel to aggressively swap processes out of physical memory
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# and move them to swap cache
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vm.swappiness=3
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# The total time the scheduler will consider a migrated process
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# "cache hot" and thus less likely to be re-migrated
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# (system default is 500000, i.e. 0.5 ms)
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kernel.sched_migration_cost_ns=50000000
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# The autogroup feature of the CFS
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# (system default is 1, e.q enabled)
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kernel.sched_autogroup_enabled = 0
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13
tuned.spec
13
tuned.spec
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@ -237,6 +237,13 @@ Requires: %{name} = %{version}
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Additional tuned profiles mainly for backward compatibility with tuned 1.0.
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It can be also used to fine tune your system for specific scenarios.
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%package profiles-postgresql
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Summary: Additional tuned profile(s) targeted to PostgreSQL server loads
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Requires: %{name} = %{version}
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%description profiles-postgresql
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Additional tuned profile(s) targeted to PostgreSQL server loads.
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%prep
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%setup -q -n %{name}-%{version}%{?prerel2}
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@ -391,6 +398,7 @@ fi
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%exclude %{_prefix}/lib/tuned/realtime-virtual-host
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%exclude %{_prefix}/lib/tuned/cpu-partitioning
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%exclude %{_prefix}/lib/tuned/spectrumscale-ece
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%exclude %{_prefix}/lib/tuned/postgresql
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%{_prefix}/lib/tuned
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%dir %{_sysconfdir}/tuned
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%dir %{_sysconfdir}/tuned/recommend.d
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@ -518,6 +526,11 @@ fi
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%{_prefix}/lib/tuned/spindown-disk
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%{_mandir}/man7/tuned-profiles-compat.7*
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%files profiles-postgresql
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%defattr(-,root,root,-)
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%{_prefix}/lib/tuned/postgresql
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%{_mandir}/man7/tuned-profiles-postgresql.7*
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%changelog
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* Mon Jun 15 2020 Jaroslav Škarvada <jskarvad@redhat.com> - 2.14.0-1
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- new release
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