8 チューニング #

root # saptune note customise

root # saptune note create

root # saptune note delete test
Note to delete is a customer/vendor specific Note.
Do you really want to delete this Note (test2)? [y/n]: y

root # saptune note rename test test2
Note to rename is a customer/vendor specific Note.
Do you really want to rename this Note (test) to the new name 'test2'? [y/n]: y

root # saptune note show

root # saptune note simulate

root # saptune solution simulate

root # saptune daemon stop

# NOTE: Local changes may be reverted after update of WMP package. Check for
#      .rpmsave file to restore & merge changes.

## Description: Slice unit name where workload is put into
## Type:        string
## Default:     "SAP.slice"
DEFAULT_SLICE="SAP.slice"

## Description: Comma-separated list of command names to which capture is
##              applied (matching against /proc/$PID/stat)
## Type:        string
## Default:     sapstart
PARENT_COMMANDS=sapstart

root # systemctl set-property SAP.slice MemoryLow=...

root # systemctl enable --now wmp-sample-memory.timer

root # systemctl list-timers
NEXT    LEFT       LAST    PASSED  UNIT                     ACTIVATES
...
Tue...  9min left  Tue...  4s ago  wmp-sample-memory.timer  wmp-sample-memory.service
...

root # systemctl cat wmp-sample-memory.timer
# /usr/lib/systemd/system/wmp-sample-memory.timer
[Unit]
Description=WMP periodic log of memory consumption

[Timer]
OnCalendar=*:0/10
RandomizedDelaySec=180
AccuracySec=60

[Install]
WantedBy=timers.target

root # mkdir /etc/systemd/system/wmp-sample-memory.timer.d

# cat <<EOF >/etc/systemd/system/wmp-sample-memory.timer.d/override.conf
[Timer]
OnCalendar=
OnCalendar=*:0/30
EOF

# systemctl daemon-reload

root # grep wmp_memory_current /var/log/messages
...


2020-09-14T12:02:40.337266+02:00 server-03 wmp_memory_current: SAP.slice : memory.low=21474836480 memory.current=2294059008 memory.swap.current=0 , user.slice : memory.low=0 memory.current=5499219968 memory.swap.current=0 , init.scope : memory.low=0 memory.current=8364032 memory.swap.current=0 , system.slice : memory.low=0 memory.current=1863335936 memory.swap.current=0
2020-09-14T12:03:00.767838+02:00 server-03 wmp_memory_current: SAP.slice : memory.low=21474836480 memory.current=2294022144 memory.swap.current=0 , user.slice : memory.low=0 memory.current=5499473920 memory.swap.current=0 , init.scope : memory.low=0 memory.current=8364032 memory.swap.current=0 , system.slice : memory.low=0 memory.current=1862586368 memory.swap.current=0
2020-09-14T12:04:00.337315+02:00 server-03 wmp_memory_current: SAP.slice : memory.low=21474836480 memory.current=2294022144 memory.swap.current=0 , user.slice : memory.low=0 memory.current=5499207680 memory.swap.current=0 , init.scope : memory.low=0 memory.current=8355840 memory.swap.current=0 , system.slice : memory.low=0 memory.current=1862746112 memory.swap.current=0
...

2020-09-14T12:02:40.337266+02:00 server-03 wmp_memory_current:
SAP.slice    : memory.low=21474836480 memory.current=2294059008 memory.swap.current=0 ,
user.slice   : memory.low=0           memory.current=5499219968 memory.swap.current=0 ,
init.scope   : memory.low=0           memory.current=8364032    memory.swap.current=0 ,
system.slice : memory.low=0           memory.current=1863335936 memory.swap.current=0

root # systemd-cgls -a /sys/fs/cgroup/SAP.slice
Directory /sys/fs/cgroup/SAP.slice:
|-wmp-rd91fd6b3ca0d4c1183659ef4f9a092fa.scope
| |-3349 sapstart pf=/usr/sap/HA0/ERS10/profile/HA0_ERS10_sapha0er
| `-3375 er.sapHA0_ERS10 pf=/usr/sap/HA0/ERS10/profile/HA0_ERS10_sapha0er N...
|-wmp-r360ebfe09bcd4df4873ef69898576199.scope
| |-3572 sapstart pf=/usr/sap/HA0/SYS/profile/HA0_D01_sapha0ci
| |-3624 dw.sapHA0_D01 pf=/usr/sap/HA0/SYS/profile/HA0_D01_sapha0ci
...

tux > ps -eo user,pid,cgroup:60,args | grep -e [h]a0adm
ha0adm    2062 0::/user.slice/user-1001.slice/user@1001.service/init.scope  /usr/lib/systemd/systemd --user
ha0adm    2065 0::/user.slice/user-1001.slice/user@1001.service/init.scope  (sd-pam)
ha0adm    3081 0::/SAP.slice/wmp-r73c594e050904c9c922a312dd9a28fd4.scope    sapstart pf=/usr/sap/HA0/SYS/profile/HA0_ASCS00_sapha0as
ha0adm    3133 0::/SAP.slice/wmp-r73c594e050904c9c922a312dd9a28fd4.scope    ms.sapHA0_ASCS00 pf=/usr/sap/HA0/SYS/profile/HA0_ASCS00_sapha0as
ha0adm    3134 0::/SAP.slice/wmp-r73c594e050904c9c922a312dd9a28fd4.scope    en.sapHA0_ASCS00 pf=/usr/sap/HA0/SYS/profile/HA0_ASCS00_sapha0as
ha0adm    3327 0::/SAP.slice/wmp-ra42489517eb846c282c57681e627a496.scope    sapstart pf=/usr/sap/HA0/ERS10/profile/HA0_ERS10_sapha0er
...