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날짜: 05-09-2005 10:00 PM
날짜: 05-09-2005 10:00 PM
IPC관련 queue(backlog) Default size값?
답변이 될지 모르겠네요...
itrc에 아래의 내용이 있습니다.
The size of the listen queue of an AF_UNIX socket is defined with
the syscall listen(backlog). By default, this backlog is limited
to 4096 in HPUX11i and HPUX11iV1.6.
For XOPEN_SOCKET, the size is directly defined by this backlog value.
The non XOPEN_SOCKETs, the "real" size is:
3 * backlog / 2 + 1
As of the following patch
PHNE_24211
11.11 cumulative ARPA Transport patch
Note: This patch, as with any patch, may be superseded.
Please check for the latest patches at the IT Resource
Center (ITRC) at the following web site:
http://www.itrc.hp.com
and since HPUX 11i V1.6, a socket level ndd parameter permits the
socket_qlimit_max parameter to be tuned. For example:
# ndd -set sockets socket_qlimit_max 2048
This will limit the maximum of backlog to 2048. The maximum size
of a listen queue will be:
XOPEN_SOCKETS = 2048
non XOPEN_SOCKET = 3073
Whatever the value of this tunable is, the absolute limit for the
listen queue size is 32767. This means that the backlog value
must be:
XOPEN_SOCKET: less than 32767
non XOPEN_SOCKET: 21844
itrc에 아래의 내용이 있습니다.
The size of the listen queue of an AF_UNIX socket is defined with
the syscall listen(backlog). By default, this backlog is limited
to 4096 in HPUX11i and HPUX11iV1.6.
For XOPEN_SOCKET, the size is directly defined by this backlog value.
The non XOPEN_SOCKETs, the "real" size is:
3 * backlog / 2 + 1
As of the following patch
PHNE_24211
11.11 cumulative ARPA Transport patch
Note: This patch, as with any patch, may be superseded.
Please check for the latest patches at the IT Resource
Center (ITRC) at the following web site:
http://www.itrc.hp.com
and since HPUX 11i V1.6, a socket level ndd parameter permits the
socket_qlimit_max parameter to be tuned. For example:
# ndd -set sockets socket_qlimit_max 2048
This will limit the maximum of backlog to 2048. The maximum size
of a listen queue will be:
XOPEN_SOCKETS = 2048
non XOPEN_SOCKET = 3073
Whatever the value of this tunable is, the absolute limit for the
listen queue size is 32767. This means that the backlog value
must be:
XOPEN_SOCKET: less than 32767
non XOPEN_SOCKET: 21844
위에 명시된 의견은 Hewlett Packard Enterprise가 아닌 저자의 개인 의견입니다. 이 사이트를 사용하면 이용 약관에 동의하게되며 참여 규칙 .
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