Re: [GENERAL] vacuum of empty table slows down as database tablecount grows

Thanks, i'll redo the benchmarks and report back how things look now.

2017-01-04 20:33 GMT+01:00 Pavel Stehule <pavel.stehule@gmail.com>:

>
> This is irrelevant of amount of data restored, i am seeing the same behavior with just schema restore, as well as with schema+data restores.
>
> If anyone is interested i may upload the schema data + my benchmarking script with collected whisper data from my test run (i've been plotting it in grafana via carbon)
>
> Is this a known issue? Can i do anything to improve performance here?

we had 10K and more tables in one database - and we had lot of issues. 

I know so Tomas fixed some issues, but we need the stat files in tmpfs 

please, read this article  https://blog.pgaddict.com/posts/the-two-kinds-of-stats-in-postgresql

http://hacksoclock.blogspot.cz/2014/04/putting-statstempdirectory-on-ramdisk.html

 

Regards

Pavel

>

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Jerry Sievers
Postgres DBA/Development Consulting
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