X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=README;h=d84bf8ea69e05ef3d115656c2eb815ef541449e9;hb=def98457bebf9277bd0ba86a3cb4eeb7c8e59875;hp=53220ff3f21743fd2ed5576eda4519eb5a9842d2;hpb=37570c53dc8865f07ae8ff5a9915d7ed797b951f;p=elogind.git
diff --git a/README b/README
index 53220ff3f..d84bf8ea6 100644
--- a/README
+++ b/README
@@ -82,11 +82,11 @@ REQUIREMENTS:
CONFIG_SECCOMP
CONFIG_CHECKPOINT_RESTORE (for the kcmp() syscall)
- Required for CPUShares in resource control unit settings
+ Required for CPUShares= in resource control unit settings
CONFIG_CGROUP_SCHED
CONFIG_FAIR_GROUP_SCHED
- Required for CPUQuota in resource control unit settings
+ Required for CPUQuota= in resource control unit settings
CONFIG_CFS_BANDWIDTH
For systemd-bootchart, several proc debug interfaces are required:
@@ -97,6 +97,15 @@ REQUIREMENTS:
CONFIG_EFIVAR_FS
CONFIG_EFI_PARTITION
+ We recommend to turn off Real-Time group scheduling in the
+ kernel when using systemd. RT group scheduling effectively
+ makes RT scheduling unavailable for most userspace, since it
+ requires explicit assignment of RT budgets to each unit whose
+ processes making use of RT. As there's no sensible way to
+ assign these budgets automatically this cannot really be
+ fixed, and it's best to disable group scheduling hence.
+ CONFIG_RT_GROUP_SCHED=n
+
Note that kernel auditing is broken when used with systemd's
container code. When using systemd in conjunction with
containers, please make sure to either turn off auditing at
@@ -261,7 +270,7 @@ WARNINGS:
false positives will be triggered by code which violates
some rules but is actually safe.
-ENGINEERING AND CONSULTING SERVICES:
- ENDOCODE offers professional
- engineering and consulting services for systemd. Please
- contact Chris Kühl for more information.
+ Currently, systemd-timesyncd defaults to use the Google NTP
+ servers if not specified otherwise at configure time. You
+ really should not ship an OS or device with this default
+ setting. See DISTRO_PORTING for details.