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Enable releasing stale pages by default and introduce an opt-out mechanism. - #1848

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@copybara-service copybara-service Bot commented Nov 4, 2026 •

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Enable releasing stale pages by default and introduce an opt-out mechanism.

Releasing stale pages from the HugePageFiller is now enabled by default. It is
disabled if the environment variable TCMALLOC_DISABLE_RELEASE_STALE_PAGES is
set to 1 or if the binary is linked to :want_disable_release_stale_pages.

@copybara-service copybara-service Bot changed the title Enable releasing stale pages by default and introduce an opt-out mechanism. Introduce opt-out mechanism for releasing stale pages. Nov 4, 2026
@copybara-service copybara-service Bot changed the title Introduce opt-out mechanism for releasing stale pages. Enable releasing stale pages by default and introduce an opt-out mechanism. Nov 4, 2026
…anism.

Releasing stale pages from the HugePageFiller is now enabled by default. It is
disabled if the environment variable `TCMALLOC_DISABLE_RELEASE_STALE_PAGES` is
set to 1 or if the binary is linked to :want_disable_release_stale_pages.

PiperOrigin-RevId: 1013431374

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