Merge pull request #8150 from poettering/memory-accounting-by-default
pid1: turn memory accounting on by default now
This commit is contained in:
Lennart Poettering
GitHub
commit
476a8618fc
16
NEWS
16
NEWS
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@ -1,5 +1,21 @@
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systemd System and Service Manager
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CHANGES WITH 238 in spe:
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* The MemoryAccounting= unit property now defaults to on. After
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discussions with the upstream control group maintainers we learnt
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that the negative impact of cgroup memory accounting on current
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kernels is finally relatively minimal, so that it should be safe to
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enable this by default without affecting system performance. Besides
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memory accounting only task accounting is turned on by default, all
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other forms of resource accounting (CPU, IO, IP) remain off for now,
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because it's not clear yet that their impact is small enough to move
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from opt-in to opt-out. We recommend downstreams to leave memory
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accounting on by default if kernel 4.14 or higher is are primarily
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used. On very resource constrained systems or when support for old
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kernels is a necessity, -Dmemory-accounting-default=false can be used
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to revert this change.
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CHANGES WITH 237:
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* Some keyboards come with a zoom see-saw or rocker which until now got
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@ -6,3 +6,4 @@
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<!ENTITY systemenvgeneratordir @SYSTEM_ENV_GENERATOR_PATH@>
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<!ENTITY userenvgeneratordir @USER_ENV_GENERATOR_PATH@>
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<!ENTITY CERTIFICATE_ROOT @CERTIFICATE_ROOT@>
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<!ENTITY MEMORY_ACCOUNTING_DEFAULT @MEMORY_ACCOUNTING_DEFAULT_ON_OFF@>
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@ -1,6 +1,9 @@
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<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
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<!ENTITY % entities SYSTEM "custom-entities.ent" >
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%entities;
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]>
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<!--
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SPDX-License-Identifier: LGPL-2.1+
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@ -338,8 +341,9 @@
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<varname>CPUAccounting=</varname>, <varname>BlockIOAccounting=</varname>, <varname>MemoryAccounting=</varname>,
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<varname>TasksAccounting=</varname> and <varname>IPAccounting=</varname>. See
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<citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for details on the per-unit settings. <varname>DefaultTasksAccounting=</varname> defaults to on, the other
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four settings to off.</para></listitem>
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for details on the per-unit settings. <varname>DefaultTasksAccounting=</varname> defaults to on,
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<varname>DefaultMemoryAccounting=</varname> to &MEMORY_ACCOUNTING_DEFAULT;,
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the other three settings to off.</para></listitem>
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</varlistentry>
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<varlistentry>
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@ -172,6 +172,8 @@ if pamconfdir == ''
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pamconfdir = join_paths(sysconfdir, 'pam.d')
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endif
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memory_accounting_default = get_option('memory-accounting-default')
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conf.set_quoted('PKGSYSCONFDIR', pkgsysconfdir)
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conf.set_quoted('SYSTEM_CONFIG_UNIT_PATH', join_paths(pkgsysconfdir, 'system'))
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conf.set_quoted('SYSTEM_DATA_UNIT_PATH', systemunitdir)
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@ -217,6 +219,8 @@ conf.set_quoted('SYSTEMD_EXPORT_PATH', join_paths(rootlib
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conf.set_quoted('VENDOR_KEYRING_PATH', join_paths(rootlibexecdir, 'import-pubring.gpg'))
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conf.set_quoted('USER_KEYRING_PATH', join_paths(pkgsysconfdir, 'import-pubring.gpg'))
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conf.set_quoted('DOCUMENT_ROOT', join_paths(pkgdatadir, 'gatewayd'))
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conf.set('MEMORY_ACCOUNTING_DEFAULT', memory_accounting_default ? 'true' : 'false')
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conf.set_quoted('MEMORY_ACCOUNTING_DEFAULT_ON_OFF', memory_accounting_default ? 'on' : 'off')
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conf.set_quoted('ABS_BUILD_DIR', meson.build_root())
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conf.set_quoted('ABS_SRC_DIR', meson.source_root())
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@ -257,6 +261,7 @@ substs.set('SYSTEM_SYSVINIT_PATH', sysvinit_path)
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substs.set('SYSTEM_SYSVRCND_PATH', sysvrcnd_path)
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substs.set('RC_LOCAL_SCRIPT_PATH_START', get_option('rc-local'))
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substs.set('RC_LOCAL_SCRIPT_PATH_STOP', get_option('halt-local'))
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substs.set('MEMORY_ACCOUNTING_DEFAULT', memory_accounting_default ? 'yes' : 'no')
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#####################################################################
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@ -53,6 +53,8 @@ option('debug-tty', type : 'string', value : '/dev/tty9',
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description : 'specify the tty device for debug shell')
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option('debug', type : 'string',
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description : 'enable extra debugging (hashmap,mmap-cache)')
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option('memory-accounting-default', type : 'boolean',
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description : 'enable MemoryAccounting= by default')
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option('utmp', type : 'boolean',
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description : 'support for utmp/wtmp log handling')
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@ -135,7 +135,7 @@ static bool arg_default_cpu_accounting = false;
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static bool arg_default_io_accounting = false;
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static bool arg_default_ip_accounting = false;
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static bool arg_default_blockio_accounting = false;
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static bool arg_default_memory_accounting = false;
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static bool arg_default_memory_accounting = MEMORY_ACCOUNTING_DEFAULT;
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static bool arg_default_tasks_accounting = true;
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static uint64_t arg_default_tasks_max = UINT64_MAX;
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static sd_id128_t arg_machine_id = {};
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@ -673,6 +673,7 @@ int manager_new(UnitFileScope scope, unsigned test_run_flags, Manager **_m) {
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m->unit_file_scope = scope;
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m->exit_code = _MANAGER_EXIT_CODE_INVALID;
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m->default_timer_accuracy_usec = USEC_PER_MINUTE;
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m->default_memory_accounting = MEMORY_ACCOUNTING_DEFAULT;
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m->default_tasks_accounting = true;
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m->default_tasks_max = UINT64_MAX;
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m->default_timeout_start_usec = DEFAULT_TIMEOUT_USEC;
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@ -186,7 +186,8 @@ systemd_shutdown_sources = files('''
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in_files = [['macros.systemd', rpmmacrosdir],
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['triggers.systemd', ''],
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['systemd.pc', pkgconfigdatadir]]
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['systemd.pc', pkgconfigdatadir],
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['system.conf', pkgsysconfdir]]
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foreach item : in_files
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file = item[0]
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@ -225,8 +226,7 @@ i18n.merge_file(
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install : install_polkit,
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install_dir : polkitpolicydir)
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install_data('system.conf',
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'user.conf',
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install_data('user.conf',
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install_dir : pkgsysconfdir)
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meson.add_install_script('sh', '-c', mkdir_p.format(systemshutdowndir))
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@ -42,7 +42,7 @@
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#DefaultIOAccounting=no
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#DefaultIPAccounting=no
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#DefaultBlockIOAccounting=no
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#DefaultMemoryAccounting=no
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#DefaultMemoryAccounting=@MEMORY_ACCOUNTING_DEFAULT@
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#DefaultTasksAccounting=yes
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#DefaultTasksMax=15%
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#DefaultLimitCPU=
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