Victor Yegorov wrote
> Can you provide output of `iostat -myx 10` at the “peak” moments, please?
sure, please find it here:
https://pastebin.com/f2Pv6hDL
Victor Yegorov wrote
> Also, it'd be good to look in more detailed bgwriter/checkpointer stats.
> You can find more details in this post: http://blog.postgresql-
> consulting.com/2017/03/deep-dive-into-postgres-stats_27.html
> (You might want to reset 'shared' stats here.)
thank you for the link, it's really nice explanation. Here you'll find the
full bgwriter stats: https://pastebin.com/VA8pyfXj
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Victor Yegorov
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