[PATCH v7 0/4] Add system-wide tunables
Project / Subsystem
glibc / glibc
Date
2026-04-17
Proposer
DJ Delorie <[email protected]>
Source type
public_inbox
Consensus
Proposed
Sentiment
7/10
Technical tradeoffs
- • Reuses ldconfig for reading the configuration, which avoids introducing new tooling but may constrain the design.
- • Adds complexity to ld.so.cache loading.
- • Introduces a new configuration file format.
- • Requires careful validation of tunable values to prevent unexpected behavior.
All attributes
- project
- glibc
- subsystem
- glibc
- patch_id
- —
- discussion_id
- [email protected]
- source_type
- public_inbox
- title
- [PATCH v7 0/4] Add system-wide tunables
- headline
- Add system-wide tunables
- tldr
- This series introduces system-wide tunables configurable via /etc/tunables.conf, allowing administrators to adjust glibc behavior per-process.
- stakes
- This feature could impact application performance and resource utilization by allowing administrators to fine-tune glibc's behavior without recompilation.
- proposer
- DJ Delorie <[email protected]>
- consensus
- Proposed
- outcome
- proposed
- sentiment_score
- 7
- sentiment_rationale
- The patch series has gone through several revisions, indicating active development and refinement.
- technical_tradeoffs
-
- • Reuses ldconfig for reading the configuration, which avoids introducing new tooling but may constrain the design.
- • Adds complexity to ld.so.cache loading.
- • Introduces a new configuration file format.
- • Requires careful validation of tunable values to prevent unexpected behavior.
- series_id
- glibc:add system-wide tunables
- series_role
- cover
- series_parts
- []
- tags
-
- • tunables
- • configuration
- • ldconfig
- • performance
- bugzilla_url
- —
- date
- 2026-04-17T00:00:00.000Z
[PATCH v7 0/4] Add system-wide tunables
This patch series implements system-wide tunables for glibc. It reads tunable configurations from /etc/tunables.conf using ldconfig, stores them in /etc/ld.so.cache, and applies them to running applications. The configuration supports per-process overrides. This is version 7 of the patch.