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File _service:tar_scm:pid1-bump-DefaultTasksMax-to-80-of-the-kernel-pid.ma.patch of Package systemd
From ad2da19e1e80a9ab9d0dfae17a74f5009e4d1898 Mon Sep 17 00:00:00 2001 From: openEuler Buildteam <buildteam@openeuler.org> Date: Tue, 10 Mar 2020 21:01:43 +0800 Subject: [PATCH] pid1 bump DefaultTasksMax to 80% of the kernel pid.max value --- man/systemd-system.conf.xml | 2 +- src/core/manager.c | 2 +- src/core/system.conf.in | 2 +- units/user-.slice.d/10-defaults.conf | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/man/systemd-system.conf.xml b/man/systemd-system.conf.xml index 3c06b65..72f366e 100644 --- a/man/systemd-system.conf.xml +++ b/man/systemd-system.conf.xml @@ -501,7 +501,7 @@ <listitem><para>Configure the default value for the per-unit <varname>TasksMax=</varname> setting. See <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry> for details. This setting applies to all unit types that support resource control settings, with the exception - of slice units. Defaults to 15% of the minimum of <varname>kernel.pid_max=</varname>, <varname>kernel.threads-max=</varname> + of slice units. Defaults to 80% of the minimum of <varname>kernel.pid_max=</varname>, <varname>kernel.threads-max=</varname> and root cgroup <varname>pids.max</varname>. Kernel has a default value for <varname>kernel.pid_max=</varname> and an algorithm of counting in case of more than 32 cores. For example, with the default <varname>kernel.pid_max=</varname>, <varname>DefaultTasksMax=</varname> defaults to 4915, diff --git a/src/core/manager.c b/src/core/manager.c index 45c8966..ce20d6b 100644 --- a/src/core/manager.c +++ b/src/core/manager.c @@ -114,7 +114,7 @@ /* How many units and jobs to process of the bus queue before returning to the event loop. */ #define MANAGER_BUS_MESSAGE_BUDGET 100U -#define DEFAULT_TASKS_MAX ((CGroupTasksMax) { 15U, 100U }) /* 15% */ +#define DEFAULT_TASKS_MAX ((CGroupTasksMax) { 80U, 100U }) /* 80% */ static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); static int manager_dispatch_cgroups_agent_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); diff --git a/src/core/system.conf.in b/src/core/system.conf.in index 05eb681..472d1ca 100644 --- a/src/core/system.conf.in +++ b/src/core/system.conf.in @@ -58,7 +58,7 @@ #DefaultIPAccounting=no #DefaultMemoryAccounting={{ 'yes' if MEMORY_ACCOUNTING_DEFAULT else 'no' }} #DefaultTasksAccounting=yes -#DefaultTasksMax=15% +#DefaultTasksMax=80% #DefaultLimitCPU= #DefaultLimitFSIZE= #DefaultLimitDATA= diff --git a/units/user-.slice.d/10-defaults.conf b/units/user-.slice.d/10-defaults.conf index f688eac..20c39ec 100644 --- a/units/user-.slice.d/10-defaults.conf +++ b/units/user-.slice.d/10-defaults.conf @@ -13,4 +13,4 @@ Documentation=man:user@.service(5) StopWhenUnneeded=yes [Slice] -TasksMax=33% +TasksMax=80% -- 2.33.0
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