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59 lines
2.6 KiB
59 lines
2.6 KiB
From 4ec48c87803916e90a8f30afae6c8bdee5bb9ba5 Mon Sep 17 00:00:00 2001 |
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From: rpm-build <rpm-build> |
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Date: Wed, 1 Aug 2018 13:19:39 +0200 |
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Subject: [PATCH] pid1: bump DefaultTasksMax to 80% of the kernel pid.max value |
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This should be hopefully high enough even for the very big deployments. |
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RHEL-only |
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Resolves: #2003031 |
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--- |
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man/systemd-system.conf.xml | 4 ++-- |
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src/core/main.c | 2 +- |
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src/core/system.conf.in | 2 +- |
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3 files changed, 4 insertions(+), 4 deletions(-) |
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diff --git a/man/systemd-system.conf.xml b/man/systemd-system.conf.xml |
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index 3805a010e2..b8e2b65625 100644 |
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--- a/man/systemd-system.conf.xml |
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+++ b/man/systemd-system.conf.xml |
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@@ -404,10 +404,10 @@ |
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<listitem><para>Configure the default value for the per-unit <varname>TasksMax=</varname> setting. See |
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<citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry> |
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for details. This setting applies to all unit types that support resource control settings, with the exception |
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- of slice units. Defaults to 15% of the minimum of <varname>kernel.pid_max=</varname>, <varname>kernel.threads-max=</varname> |
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+ of slice units. Defaults to 80% of the minimum of <varname>kernel.pid_max=</varname>, <varname>kernel.threads-max=</varname> |
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and root cgroup <varname>pids.max</varname>. |
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Kernel has a default value for <varname>kernel.pid_max=</varname> and an algorithm of counting in case of more than 32 cores. |
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- For example with the default <varname>kernel.pid_max=</varname>, <varname>DefaultTasksMax=</varname> defaults to 4915, |
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+ For example with the default <varname>kernel.pid_max=</varname>, <varname>DefaultTasksMax=</varname> defaults to 26214, |
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but might be greater in other systems or smaller in OS containers.</para></listitem> |
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</varlistentry> |
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diff --git a/src/core/main.c b/src/core/main.c |
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index 57aedb9b93..7ea848ebeb 100644 |
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--- a/src/core/main.c |
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+++ b/src/core/main.c |
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@@ -98,7 +98,7 @@ |
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#include <sanitizer/lsan_interface.h> |
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#endif |
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-#define DEFAULT_TASKS_MAX ((TasksMax) { 15U, 100U }) /* 15% */ |
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+#define DEFAULT_TASKS_MAX ((TasksMax) { 80U, 100U }) /* 80% */ |
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static enum { |
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ACTION_RUN, |
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diff --git a/src/core/system.conf.in b/src/core/system.conf.in |
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index 96fb64d2c1..c0dc6a7e17 100644 |
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--- a/src/core/system.conf.in |
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+++ b/src/core/system.conf.in |
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@@ -54,7 +54,7 @@ |
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#DefaultBlockIOAccounting=no |
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#DefaultMemoryAccounting={{ 'yes' if MEMORY_ACCOUNTING_DEFAULT else 'no' }} |
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#DefaultTasksAccounting=yes |
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-#DefaultTasksMax=15% |
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+#DefaultTasksMax=80% |
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#DefaultLimitCPU= |
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#DefaultLimitFSIZE= |
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#DefaultLimitDATA=
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