* [PATCH v2 1/2] Update description of net.sctp.sctp_rmem and net.sctp.sctp_wmem tunables
@ 2011-06-20 8:08 ` Max Matveev
0 siblings, 0 replies; 4+ messages in thread
From: Max Matveev @ 2011-06-20 8:08 UTC (permalink / raw)
To: linux-sctp; +Cc: netdev
sctp does not use second and third ("default" and "max") values
of sctp_rmem tunable. The format is the same as tcp_rmem
but the meaning is different so make the documentation explicit to
avoid confusion.
sctp_wmem is not used at all.
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Max Matveev <makc@redhat.com>
---
Documentation/networking/ip-sysctl.txt | 11 +++++++++--
1 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index d3d653a..ce09f83 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1465,10 +1465,17 @@ sctp_mem - vector of 3 INTEGERs: min, pressure, max
Default is calculated at boot time from amount of available memory.
sctp_rmem - vector of 3 INTEGERs: min, default, max
- See tcp_rmem for a description.
+ Only the first value ("min") is used, "default" and "max" are
+ ignored.
+
+ min: Minimal size of receive buffer used by SCTP socket.
+ It is guaranteed to each SCTP socket (but not association) even
+ under moderate memory pressure.
+
+ Default: 1 page
sctp_wmem - vector of 3 INTEGERs: min, default, max
- See tcp_wmem for a description.
+ Currently this tunable has no effect.
addr_scope_policy - INTEGER
Control IPv4 address scoping - draft-stewart-tsvwg-sctp-ipv4-00
--
1.7.3.3
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH v2 1/2] Update description of net.sctp.sctp_rmem and net.sctp.sctp_wmem tunables
@ 2011-06-20 8:08 ` Max Matveev
0 siblings, 0 replies; 4+ messages in thread
From: Max Matveev @ 2011-06-20 8:08 UTC (permalink / raw)
To: linux-sctp; +Cc: netdev
sctp does not use second and third ("default" and "max") values
of sctp_rmem tunable. The format is the same as tcp_rmem
but the meaning is different so make the documentation explicit to
avoid confusion.
sctp_wmem is not used at all.
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Max Matveev <makc@redhat.com>
---
Documentation/networking/ip-sysctl.txt | 11 +++++++++--
1 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index d3d653a..ce09f83 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1465,10 +1465,17 @@ sctp_mem - vector of 3 INTEGERs: min, pressure, max
Default is calculated at boot time from amount of available memory.
sctp_rmem - vector of 3 INTEGERs: min, default, max
- See tcp_rmem for a description.
+ Only the first value ("min") is used, "default" and "max" are
+ ignored.
+
+ min: Minimal size of receive buffer used by SCTP socket.
+ It is guaranteed to each SCTP socket (but not association) even
+ under moderate memory pressure.
+
+ Default: 1 page
sctp_wmem - vector of 3 INTEGERs: min, default, max
- See tcp_wmem for a description.
+ Currently this tunable has no effect.
addr_scope_policy - INTEGER
Control IPv4 address scoping - draft-stewart-tsvwg-sctp-ipv4-00
--
1.7.3.3
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v2 1/2] Update description of net.sctp.sctp_rmem and net.sctp.sctp_wmem tunables
2011-06-20 8:08 ` Max Matveev
@ 2011-07-05 2:01 ` Shan Wei
-1 siblings, 0 replies; 4+ messages in thread
From: Shan Wei @ 2011-07-05 2:01 UTC (permalink / raw)
To: Max Matveev; +Cc: linux-sctp, netdev
Max Matveev wrote, at 06/20/2011 04:08 PM:
> sctp does not use second and third ("default" and "max") values
> of sctp_rmem tunable. The format is the same as tcp_rmem
> but the meaning is different so make the documentation explicit to
> avoid confusion.
>
> sctp_wmem is not used at all.
>
> Acked-by: Neil Horman <nhorman@tuxdriver.com>
> Signed-off-by: Max Matveev <makc@redhat.com>
Reviewed-by: Shan Wei <shanwei@cn.fujitsu.com>
--
Best Regards
-----
Shan Wei
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v2 1/2] Update description of net.sctp.sctp_rmem and net.sctp.sctp_wmem
@ 2011-07-05 2:01 ` Shan Wei
0 siblings, 0 replies; 4+ messages in thread
From: Shan Wei @ 2011-07-05 2:01 UTC (permalink / raw)
To: Max Matveev; +Cc: linux-sctp, netdev
Max Matveev wrote, at 06/20/2011 04:08 PM:
> sctp does not use second and third ("default" and "max") values
> of sctp_rmem tunable. The format is the same as tcp_rmem
> but the meaning is different so make the documentation explicit to
> avoid confusion.
>
> sctp_wmem is not used at all.
>
> Acked-by: Neil Horman <nhorman@tuxdriver.com>
> Signed-off-by: Max Matveev <makc@redhat.com>
Reviewed-by: Shan Wei <shanwei@cn.fujitsu.com>
--
Best Regards
-----
Shan Wei
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-07-05 2:01 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2011-06-20 8:08 [PATCH v2 1/2] Update description of net.sctp.sctp_rmem and net.sctp.sctp_wmem tunables Max Matveev
2011-06-20 8:08 ` Max Matveev
2011-07-05 2:01 ` Shan Wei
2011-07-05 2:01 ` [PATCH v2 1/2] Update description of net.sctp.sctp_rmem and net.sctp.sctp_wmem Shan Wei
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