diff options
| author | Bhasker Hariharan <bhaskerh@google.com> | 2019-06-13 22:26:59 -0700 |
|---|---|---|
| committer | Shentubot <shentubot@google.com> | 2019-06-13 22:28:01 -0700 |
| commit | 3d71c627fa03a2da694ec88d690c633a15951fb0 (patch) | |
| tree | 6852d56175b4d438d524aa4a59a9eca4a67bc2a9 /pkg/tcpip/transport/tcp/tcp_timestamp_test.go | |
| parent | 3e9b8ecbfe21ba6c8c788be469fc6cea6a4a40b7 (diff) | |
Add support for TCP receive buffer auto tuning.
The implementation is similar to linux where we track the number of bytes
consumed by the application to grow the receive buffer of a given TCP endpoint.
This ensures that the advertised window grows at a reasonable rate to accomodate
for the sender's rate and prevents large amounts of data being held in stack
buffers if the application is not actively reading or not reading fast enough.
The original paper that was used to implement the linux receive buffer auto-
tuning is available @ https://public.lanl.gov/radiant/pubs/drs/lacsi2001.pdf
NOTE: Linux does not implement DRS as defined in that paper, it's just a good
reference to understand the solution space.
Updates #230
PiperOrigin-RevId: 253168283
Diffstat (limited to 'pkg/tcpip/transport/tcp/tcp_timestamp_test.go')
| -rw-r--r-- | pkg/tcpip/transport/tcp/tcp_timestamp_test.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/pkg/tcpip/transport/tcp/tcp_timestamp_test.go b/pkg/tcpip/transport/tcp/tcp_timestamp_test.go index ad300b90b..a641e953d 100644 --- a/pkg/tcpip/transport/tcp/tcp_timestamp_test.go +++ b/pkg/tcpip/transport/tcp/tcp_timestamp_test.go @@ -182,7 +182,7 @@ func TestTimeStampEnabledAccept(t *testing.T) { wndSize uint16 }{ {true, -1, 0xffff}, // When cookie is used window scaling is disabled. - {false, 5, 0x8000}, // 0x8000 * 2^5 = 1<<20 = 1MB window (the default). + {false, 5, 0x8000}, // DefaultReceiveBufferSize is 1MB >> 5. } for _, tc := range testCases { timeStampEnabledAccept(t, tc.cookieEnabled, tc.wndScale, tc.wndSize) @@ -239,7 +239,7 @@ func TestTimeStampDisabledAccept(t *testing.T) { wndSize uint16 }{ {true, -1, 0xffff}, // When cookie is used window scaling is disabled. - {false, 5, 0x8000}, // 0x8000 * 2^5 = 1<<20 = 1MB window (the default). + {false, 5, 0x8000}, // DefaultReceiveBufferSize is 1MB >> 5. } for _, tc := range testCases { timeStampDisabledAccept(t, tc.cookieEnabled, tc.wndScale, tc.wndSize) |