[systemd-devel] user unit blocking login shell from popping out because wanted by default target?

[Michał Zegan]

The only thing seems to be you cannot go low latency with system mode 
pulseaudio

W dniu 10.01.2016 o 18:53, Reindl Harald pisze:
>
>
> Am 10.01.2016 um 18:42 schrieb Tom Yan:
>> Ugh I am not talking about system units, but user units...
>>
>> P.S. Although not really relevant here, but I am using the (user)
>> service file provided by upstream pulseaudio
>
> well, and i am talking about solutions and working setups
>
> and yes i know that system-wide is not liked upstream but it's the 
> only real solution to have sound everytime and everywhere because i 
> have *zero* understanding for music stop to play just because i switch 
> to a root VT while i had background music servers developed on windows 
> 15 yaers ago
>
>> On 11 January 2016 at 01:30, Reindl Harald <h.reindl at thelounge.net> 
>> wrote:
>>>
>>>
>>> Am 10.01.2016 um 18:15 schrieb Mantas Mikulėnas:
>>>>
>>>> I remember this discussed before, I think one suggestion was to split
>>>> into two targets, and only hold the login until the first target. 
>>>> Nobody
>>>> implemented it though.
>>>>
>>>> But yes, pulseaudio.socket would be a requirement of that. If you 
>>>> don't
>>>> want to wait until it starts, *and* don't want to socket-activate it,
>>>> the third option is to live in a world of race conditions.
>>>>
>>>> On Sun, Jan 10, 2016, 16:25 Tom Yan <tom.ty89 at gmail.com
>>>> <mailto:tom.ty89 at gmail.com>> wrote:
>>>>
>>>>      So I am recently experiencing some issue with pulseaudio (which I
>>>>      already filed a bug report:
>>>>      https://bugs.freedesktop.org/show_bug.cgi?id=93651) that it 
>>>> takes a
>>>>      long time to start.
>>>>
>>>>      The thing is, I am thinking whether it exposed a problem of 
>>>> systemd as
>>>>      well. For example:
>>>>
>>>>      Jan 10 21:31:33 localhost systemd[257]: Starting Sound Service...
>>>>      Jan 10 21:31:33 localhost systemd[257]: Started D-Bus User 
>>>> Message
>>>> Bus.
>>>>      Jan 10 21:31:39 localhost systemd[257]: Started Sound Service.
>>>>      Jan 10 21:31:39 localhost systemd[257]: Reached target Default.
>>>>      Jan 10 21:31:39 localhost systemd[257]: Startup finished in 
>>>> 5.830s.
>>>>
>>>>      As you can see, because of pulseaudio, it takes about 6 
>>>> seconds to
>>>>      reach the default target
>>>
>>>
>>> no idea how you configured you pulseaudio.service
>>>
>>> but i can assure you that i have systems with pulseaudio as systemwide
>>> daemons where the whol eboot inlcuding VMware, httpd, dbmail and two
>>> mysql-instances takes around 18 seconds
>>>
>>> in fact with "type=simple" it can't delay boot at all
>>>
>>> [root at srv-rhsoft:~]$ cat /usr/lib/systemd/system/pulsed.service
>>> [Unit]
>>> Description=Pulseaudio Daemon
>>> After=rtkit-daemon.service systemd-udevd.service dbus.service 
>>> sddm.service
>>>
>>> [Service]
>>> Type=simple
>>> ExecStart=-/usr/bin/pulseaudio --daemonize=false --system=true
>>> --realtime=true --log-level=0 --log-target=stderr
>>> --disallow-module-loading=true --disallow-exit=true --exit-idle-time=0
>>> --disable-shm=true --no-cpu-limit=false --use-pid-file=false
>>> --resample-method=src-sinc-best-quality
>>>
>>> Restart=always
>>> RestartSec=30
>>> TimeoutSec=15
>>> Nice=-10
>>>
>>> PrivateTmp=yes
>>> PrivateNetwork=yes
>>>
>>> CapabilityBoundingSet=~CAP_AUDIT_CONTROL CAP_AUDIT_WRITE CAP_SYS_ADMIN
>>> CAP_SYS_BOOT CAP_SYS_MODULE CAP_SYS_PTRACE
>>>
>>> ReadOnlyDirectories=/etc
>>> ReadOnlyDirectories=/usr
>>> ReadOnlyDirectories=/var
>>> ReadWriteDirectories=/var/lib/pulse
>>>
>>> InaccessibleDirectories=-/boot
>>> InaccessibleDirectories=-/home
>>> InaccessibleDirectories=-/media
>>> InaccessibleDirectories=-/root
>>>
>>>
>>> [Install]
>>> WantedBy=multi-user.target
>
>
>
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