MaxMemoryPreload monitoring shows noticeable increase when large number of packages are rebuilt

[makortel]

Observed in #46200 (comment).

[makortel]

assign core

[cmsbuild]

New categories assigned: core

@Dr15Jones,@makortel,@smuzaffar you have been requested to review this Pull request/Issue and eventually sign? Thanks

[cmsbuild]

cms-bot internal usage

[cmsbuild]

A new Issue was created by @makortel.

@Dr15Jones, @antoniovilela, @makortel, @mandrenguyen, @rappoccio, @sextonkennedy, @smuzaffar can you please review it and eventually sign/assign? Thanks.

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[makortel]

Here is an example from #46204 (comment)

[makortel]

With @Dr15Jones we hypothesized maybe the FileInPath could lead to this increase?

[Dr15Jones]

Another reason could be the PluginManager cache would also include reading from the workspace's lib directory and therefore increase its working memory.