nuttx/Documentation
zhekunren 078782846e
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net/tcp: add configurable delayed ACK threshold
The delayed ACK logic previously sent an ACK for at least every second
received segment (hard-coded threshold of 2 per RFC 1122).  Add the
NET_TCP_ACK_FREQUENCY Kconfig option (range 1-255, default 2) to make
this threshold configurable at build time.

The delayed ACK timer still forces an ACK after at most 0.5 seconds, so
RFC 1122 timing compliance is preserved regardless of the configured
threshold.  The default value of 2 keeps the exact current behavior:
the new condition rx_unackseg >= FREQ - 1 is equivalent to the previous
rx_unackseg > 0, and the counter increment degenerates to the previous
rx_unackseg = 1 assignment.

Signed-off-by: zhekunren <zhekunren@qq.com>
Assisted-by: GLM-5.2 <noreply@z.ai>
2026-09-08 09:00:19 +08:00
..
_extensions
_static
_templates
applications Documentation/applications: document how to test tflite-micro. 2026-09-06 21:12:43 +08:00
components net/tcp: add configurable delayed ACK threshold 2026-09-08 09:00:19 +08:00
contributing !arch/stm32: move stm32l1 and finalize the directory split 2026-06-24 14:54:44 -03:00
debugging Documentation: Add documentation of SCHED_DUMP_TASKS and SCHED_DUMP_STACK 2026-06-09 08:04:54 -04:00
faq !boards: Remove NSH_ARCHINIT and board_app_initialize 2026-05-02 18:36:46 +08:00
guides Documentation/stm32h5: WWDG is supported. 2026-08-28 08:10:17 +08:00
implementation arch/atomic: remove up_testset in spinlock 2026-09-08 08:58:54 +08:00
introduction WIP: Documentation: replace first person perspectives 2025-05-19 20:21:33 +08:00
logos style: fix typos 2025-04-30 13:45:46 +08:00
platforms arch/risc-v/eic7700x: Add CPU core clock control. 2026-09-07 10:03:33 -03:00
quickstart Documentation: fill in pass1 directory description in organization.rst 2026-07-06 10:18:42 -03:00
reference arch/atomic: remove up_testset in spinlock 2026-09-08 08:58:54 +08:00
ReleaseNotes Documentation: add NuttX 13.0.1 release notes 2026-08-12 21:53:28 +08:00
standards fs: rename PSEUDOFS_SOFTLINKS to FS_LINKS 2026-08-27 01:12:33 +08:00
testing Documentation: add instructions how to run NTFC locally 2026-09-02 11:44:23 -03:00
.gitignore docs/tags: Introduce tagging feature to the documentation. 2025-04-29 09:18:25 +02:00
conf.py Documentation: conf: Ignore .venv 2026-05-29 01:26:21 +08:00
glossary.rst
index.rst docs/security: Add Security section to the documentation. 2026-01-06 02:17:20 +08:00
known-warnings.txt
legacy_README.md style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
make.bat
Makefile doc: Improve sphinx build time + add autobuild help info. 2026-01-27 09:50:55 +08:00
Pipfile docs/plantuml: Add PlantUML support to Documentation build 2026-02-15 08:47:23 +01:00
Pipfile.lock build(deps): bump starlette from 1.0.1 to 1.3.1 in /Documentation 2026-06-18 12:49:49 -04:00
security.rst docs/security: Add Security section to the documentation. 2026-01-06 02:17:20 +08:00
substitutions.rst