what if native systemd service is slower than old sysvinit script?

[Michał Piotrowski]

2011/9/14 Adam Williamson <awilliam at redhat.com>:
> On Tue, 2011-09-13 at 20:37 -0400, Tom Lane wrote:
>> =?ISO-8859-2?Q?Micha=B3_Piotrowski?= <mkkp4x4 at gmail.com> writes:
>> > 2011/9/14 Tom Lane <tgl at redhat.com>:
>> >> Certainly postgresql.init was never exactly lean-and-mean, so it
>> >> seems like it ought to have been doing more work than the unit file
>> >> requires. Are you sure you were comparing apples to apples as far as
>> >> the state of the database, kernel disk cache, etc goes?
>>
>> > I copied the service to /etc/systemd/system and changed PGDATA
>> > variable, then I enabled the service and rebooted. After boot I
>> > checked system boot time with systemd-analyze - I saw that it starts
>> > slow, so I disabled it and deleted from /etc/systemd/system. After
>> > another reboot again checked boot time with systemd-analyze.
>>
>> > I'll check tomorrow how repeatable is native service boot time.
>>
>> I'd suggest first timing some rounds of manual "service postgresql start",
>> "service postgresql stop" to see what things look like without all
>> the other noise involved in a system boot.
>
> yeah; it may well be starting at a different point in the process now
> it's being ordered as a systemd-native service rather than via lsb deps.
>
> did the *overall* startup time increase by a corresponding amount?

I sent the results of tests for simple daemon start/stop. I see no
point in testing boot speed in this case, but of course I can do some
tests later if you think that the results may be useful.

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-- 
Best regards,
Michal

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