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Issue created Jul 05, 2022 by Kamil Trzciński@ayufanMaintainer

CI Decomposition Performance Summary

The purpose of this issue is to compare before and after decomposition in various aspects observed.

This will be extended over time. Each thread represents a single metric observed.

Gathered results are preliminary.

What data shows?

Main

  • Main has about 1.666x headroom in terms of CPU/connections (30% to 50%, and 230 to 360)
  • Around 1.8x in terms of disk space to pre-decomposition levels (12.7TiB to 22TiB)
  • Grows slower than CI at around 300-350GB a 4wks
  • Has 5-6x vacuuming capacity (80% to 15%). However, this is non-linear, so depending whether this is a single big table or a few smaller ones this might be a different number.

CI

  • CI has about 3x headroom in terms of CPU/connections (15% to 50%, and 160 to 360 connections)
  • 2-2.5x in terms of disk space to pre-decomposition levels (9.24TiB to 22.4TiB)
  • Grows faster than Main at around 600-700GB a 4wks
  • Has 5-6x vacuuming capacity (80% to 15%)
Edited Jul 18, 2022 by Kamil Trzciński
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