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| author | Andrew Gallatin <gallatin@FreeBSD.org> | 2026-01-06 17:43:24 -0500 |
|---|---|---|
| committer | Andrew Gallatin <gallatin@FreeBSD.org> | 2026-01-06 17:46:12 -0500 |
| commit | 83e6f0d7807b4ebc74bc58e6f03adde56db942bf (patch) | |
| tree | 5df75d70b9deb3b3182a84acf8a899e8bebe3c0b /share | |
| parent | ccec94bf63de8ee067b03b981a283d9f968c3667 (diff) | |
iflib: document new sysctls
Document the new tx related sysctls I've added to iflib in the
last few months: tx_reclaim_ticks & tx_reclaim_thresh
Sponsored by: Netflix
Reviewed by: ziaee
Differential Revision: https://reviews.freebsd.org/D54564
MFC after: 3 days
Diffstat (limited to 'share')
| -rw-r--r-- | share/man/man4/iflib.4 | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/share/man/man4/iflib.4 b/share/man/man4/iflib.4 index 2040698f0087..66395bfe5dfc 100644 --- a/share/man/man4/iflib.4 +++ b/share/man/man4/iflib.4 @@ -94,6 +94,16 @@ If set to a non-zero value, task returns immediately and the transmit ring is serviced by a different task. This returns control to the caller faster and under high receive load, may result in fewer dropped RX frames. +.It Va tx_reclaim_thresh +Controls the threshold in packets before iflib will ask the driver +how many transmitted packets can be reclaimed. +Determining how many many packets can be reclaimed can be expensive +on some drivers. +.It Va tx_reclaim_ticks +Controls the time in ticks before iflib will ask the driver +how many transmitted packets can be reclaimed. +Determining how many many packets can be reclaimed can be expensive +on some drivers. .It Va rx_budget Sets the maximum number of frames to be received at a time. Zero (the default) indicates the default (currently 16) should be used. |