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build: cap parallelism at -j2 and add serial verify-tiers target - #15

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Univers42:mainfrom
vjan-nie:fix/cap-build-parallelism
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build: cap parallelism at -j2 and add serial verify-tiers target#15
vjan-nie wants to merge 1 commit into
Univers42:mainfrom
vjan-nie:fix/cap-build-parallelism

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Unbounded make -j (or concurrent multi-tier builds) peaks RAM high enough to swap-freeze low-headroom machines — measured cause of repeated hangs. -j2 costs no more time than -j4 (link-bound), so the cap is free. verify-tiers builds all three tiers in strict sequence for safe -Werror checks.

Unbounded make -j (or concurrent multi-tier builds) peaks RAM high enough
to swap-freeze low-headroom machines — measured cause of repeated hangs.
-j2 costs no more time than -j4 (link-bound), so the cap is free. verify-tiers
builds all three tiers in strict sequence for safe -Werror checks.
@vjan-nie vjan-nie closed this Jul 18, 2026
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