Reduce meta2 memory allocations

[fvennetier]

SUMMARY

• Fix the --profile parameter of oio-bootstrap.py.
• Track and fix unneeded memory allocations.
• Get rid of unused code.

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

• meta2

SDS VERSION

openio 5.3.0.0b1.dev21

[codecov-io]

Codecov Report

Merging #1998 into 5.x will increase coverage by 0.04%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##              5.x    #1998      +/-   ##
==========================================
+ Coverage   79.19%   79.23%   +0.04%     
==========================================
  Files         391      391              
  Lines       74191    74185       -6     
  Branches     7040     7039       -1     
==========================================
+ Hits        58750    58770      +20     
+ Misses      15202    15172      -30     
- Partials      239      243       +4

Impacted Files	Coverage Δ
meta2v2/generic.c	73% <100%> (-0.28%)	⬇️
meta2v2/meta2_utils.c	83.99% <100%> (-0.02%)	⬇️
tests/functional/m2_filters/test_filters.py	84.85% <0%> (-12.12%)	⬇️
tests/functional/container/test_replication.py	79.32% <0%> (-2.29%)	⬇️
sqliterepo/cache.c	84.53% <0%> (-1.19%)	⬇️
meta2v2/meta2_filters_action_container.c	63.36% <0%> (-1.02%)	⬇️
meta2v2/meta2_filters_extract.c	82.68% <0%> (-0.78%)	⬇️
oio/directory/admin.py	67.38% <0%> (-0.7%)	⬇️
rawx-apache2/src/rawx_repo_core.c	80.53% <0%> (-0.6%)	⬇️
core/cs.c	66.22% <0%> (-0.45%)	⬇️
... and 36 more

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