diff options
Diffstat (limited to 'lib/kernel/doc/src')
| -rw-r--r-- | lib/kernel/doc/src/inet.xml | 81 |
1 files changed, 66 insertions, 15 deletions
diff --git a/lib/kernel/doc/src/inet.xml b/lib/kernel/doc/src/inet.xml index c09aadbd74..a1590c2dce 100644 --- a/lib/kernel/doc/src/inet.xml +++ b/lib/kernel/doc/src/inet.xml @@ -556,13 +556,37 @@ fe80::204:acff:fe17:bf38 <c>[Byte1,Byte2|Binary]</c>.</p> </item> - <tag><c>{high_watermark, Size}</c></tag> - <item> <p> - Sender is forced busy if sent and enqueued data - reaches the highwater mark. - <br /> Default: 8192 kB. - </p> - </item> + <tag><c>{high_msgq_watermark, Size}</c> (TCP/IP sockets)</tag> + <item> + <p>The socket message queue will be set into a busy + state when the amount of data queued on the message + queue reaches this limit. Note that this limit only + concerns data that have not yet reached the ERTS internal + socket implementation. Default value used is 8 kB.</p> + <p>Senders of data to the socket will be suspended if + either the socket message queue is busy, or the socket + itself is busy.</p> + <p>For more information see the <c>low_msgq_watermark</c>, + <c>high_watermark</c>, and <c>low_watermark</c> options.</p> + <p>Note that distribution sockets will disable the use of + <c>high_msgq_watermark</c> and <c>low_msgq_watermark</c>, + and will instead use the + <seealso marker="erts:erlang#system_info_dist_buf_busy_limit">distribution + buffer busy limit</seealso> which is a similar feature.</p> + </item> + + <tag><c>{high_watermark, Size}</c> (TCP/IP sockets)</tag> + <item> + <p>The socket will be set into a busy state when the amount + of data queued internally by the ERTS socket implementation + reaches this limit. Default value used is 8 kB.</p> + <p>Senders of data to the socket will be suspended if + either the socket message queue is busy, or the socket + itself is busy.</p> + <p>For more information see the <c>low_watermark</c>, + <c>high_msgq_watermark</c>, and <c>low_msqg_watermark</c> + options.</p> + </item> <tag><c>{ipv6_v6only, Boolean}</c></tag> <item> @@ -647,14 +671,41 @@ fe80::204:acff:fe17:bf38 the flushing time-out in seconds.</p> </item> - <tag><c>{low_watermark, Size}</c></tag> - <item> <p> - If the port has reached its <c>high_watermark</c> it will - force busy onto senders. When the port data queue reaches the - <c>low_watermark</c> callers are no longer forced busy. - <br /> Default: 4096 kB. - </p> - </item> + <tag><c>{low_msgq_watermark, Size}</c> (TCP/IP sockets)</tag> + <item> + <p>If the socket message queue is in a busy state, the + socket message queue will be set in a not busy state when + the amount of data queued in the message queue falls + below this limit. Note that this limit only concerns data + that have not yet reached the ERTS internal socket + implementation. Default value used is 4 kB.</p> + <p>Senders that have been suspended due to either a + busy message queue or a busy socket, will be resumed + when neither the socket message queue, nor the socket + are busy.</p> + <p>For more information see the <c>high_msgq_watermark</c>, + <c>high_watermark</c>, and <c>low_watermark</c> options.</p> + <p>Note that distribution sockets will disable the use of + <c>high_msgq_watermark</c> and <c>low_msgq_watermark</c>, + and will instead use the + <seealso marker="erts:erlang#system_info_dist_buf_busy_limit">distribution + buffer busy limit</seealso> which is a similar feature.</p> + </item> + + <tag><c>{low_watermark, Size}</c> (TCP/IP sockets)</tag> + <item> + <p>If the socket is in a busy state, the socket will + be set in a not busy state when the amount of data + queued internally by the ERTS socket implementation + falls below this limit. Default value used is 4 kB.</p> + <p>Senders that have been suspended due to either a + busy message queue or a busy socket, will be resumed + when neither the socket message queue, nor the socket + are busy.</p> + <p>For more information see the <c>high_watermark</c>, + <c>high_msgq_watermark</c>, and <c>low_msgq_watermark</c> + options.</p> + </item> <tag><c>{mode, Mode :: binary | list}</c></tag> <item> |