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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2025-04-07 13:47:40 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2025-04-07 14:35:48 +0200 |
| commit | 1afba39f9305fe4061a4e70baa6ebab9d41459da (patch) | |
| tree | 67e7ed686bd75adc559025870151c4de6d649ced /Documentation/networking/ip-sysctl.rst | |
| parent | fbe43810d563a293e3de301141d33caf1f5d5c5a (diff) | |
| parent | 0af2f6be1b4281385b618cb86ad946eded089ac8 (diff) | |
Merge drm/drm-next into drm-misc-next
Backmerging to get v6.15-rc1 into drm-misc-next. Also fixes a
build issue when enabling CONFIG_DRM_SCHED_KUNIT_TEST.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'Documentation/networking/ip-sysctl.rst')
| -rw-r--r-- | Documentation/networking/ip-sysctl.rst | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst index 363b4950d542..5c63ab928b97 100644 --- a/Documentation/networking/ip-sysctl.rst +++ b/Documentation/networking/ip-sysctl.rst @@ -705,6 +705,8 @@ tcp_retries2 - INTEGER seconds and is a lower bound for the effective timeout. TCP will effectively time out at the first RTO which exceeds the hypothetical timeout. + If tcp_rto_max_ms is decreased, it is recommended to also + change tcp_retries2. RFC 1122 recommends at least 100 seconds for the timeout, which corresponds to a value of at least 8. @@ -1227,8 +1229,8 @@ tcp_pingpong_thresh - INTEGER tcp_rto_min_us - INTEGER Minimal TCP retransmission timeout (in microseconds). Note that the rto_min route option has the highest precedence for configuring this - setting, followed by the TCP_BPF_RTO_MIN socket option, followed by - this tcp_rto_min_us sysctl. + setting, followed by the TCP_BPF_RTO_MIN and TCP_RTO_MIN_US socket + options, followed by this tcp_rto_min_us sysctl. The recommended practice is to use a value less or equal to 200000 microseconds. @@ -1237,6 +1239,17 @@ tcp_rto_min_us - INTEGER Default: 200000 +tcp_rto_max_ms - INTEGER + Maximal TCP retransmission timeout (in ms). + Note that TCP_RTO_MAX_MS socket option has higher precedence. + + When changing tcp_rto_max_ms, it is important to understand + that tcp_retries2 might need a change. + + Possible Values: 1000 - 120,000 + + Default: 120,000 + UDP variables ============= |