> > All of the data is an /dev/sda1
>
> What filesystem is this?
ext4
> I did a bunch of testing, and after initially thinking I saw an
> increase it was just due to bad testing because the new TCP_NODELAY
> changes allowed imaptest to do more work. So I can't see that there is
> any disk IO
On 16 Jul 2019, at 11.15, Ralf Hildebrandt via dovecot
wrote:
>
> * Timo Sirainen via dovecot :
>
>>> And alas, I had a look at the monitoring and found that disk IO has
>>> increase A LOT after the update:
>>> https://www.arschkrebs.de/images/dovecot-disk-io-increase.png
>>>
>>> I zoomed in
* Timo Sirainen via dovecot :
> > And alas, I had a look at the monitoring and found that disk IO has
> > increase A LOT after the update:
> > https://www.arschkrebs.de/images/dovecot-disk-io-increase.png
> >
> > I zoomed in and found that the sudden increace in IO coincides with
> > the update
On 15 Jul 2019, at 23.17, Ralf Hildebrandt via dovecot
wrote:
>
> * Ralf Hildebrandt via dovecot :
>> We're using dovecot (via LMTP) as a backup for all incoming mail.
>>
>> I upgraded from 2.3.6 to 2.3.7 on the 12th:
>> 2019-07-12 14:35:44 upgrade dovecot-imapd:amd64 2:2.3.6-2~bionic
>>
* Ralf Hildebrandt via dovecot :
> We're using dovecot (via LMTP) as a backup for all incoming mail.
>
> I upgraded from 2.3.6 to 2.3.7 on the 12th:
> 2019-07-12 14:35:44 upgrade dovecot-imapd:amd64 2:2.3.6-2~bionic
> 2:2.3.7-8~bionic
>
> and it seems that 2.3.7 is slower than 2.3.6 -- mail to
