diff options
| author |   liuyacan <liuyacan@corp.netease.com> | 2021-06-14 18:09:01 +0800 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2021-06-15 05:27:32 +0000 |
| commit | 7e78119c257579731c8902556b4a197c3fc3e92e (patch) | |
| tree | 2b8d7512b16aeb4ee76bfa3c0f47bf8a8a61afe7 /src/vnet/tcp/tcp.h | |
| parent | 4d37bf9821d469f2c96ec3b2ddf8940320d9aa69 (diff) | |
tcp: prevent timer handler being called frequently
In the current implement, tcp would start or up an one tick
retransmit timer for that connection if vlib_buffer_alloc()
return 0. Now the tick is 0.1ms, this means that if VPP is
in a buffer shortage state, there would be a large number of
burst timer expirations.
This commit limits the minimum interval of the retransmission
timer to 100ms.
Type: fix
Signed-off-by: liuyacan <liuyacan@corp.netease.com>
Change-Id: Ia11d693fe46119c5dc16b24ca93c30c31109057a
Diffstat (limited to 'src/vnet/tcp/tcp.h')
| -rw-r--r-- | src/vnet/tcp/tcp.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h index 2561e439794..1e6cf8a9ae8 100644 --- a/src/vnet/tcp/tcp.h +++ b/src/vnet/tcp/tcp.h @@ -184,6 +184,9 @@ typedef struct tcp_configuration_ /** Timer ticks to wait in closing for fin ack */ u32 closing_time; + /** Timer ticks to wait for free buffer */ + u32 alloc_err_timeout; + /** Time to wait (sec) before cleaning up the connection */ f32 cleanup_time; |