TX_QUEUE and RX_QUEUE in /proc/net/sctp/assoc

TX_QUEUE and RX_QUEUE in /proc/net/sctp/assoc

[Sun Paul]

Hi All


what is the max value of TX_QUEUE and RX_QUEUE in /proc/net/sctp/assoc?

How we can determine the value?

- RBK

Re: TX_QUEUE and RX_QUEUE in /proc/net/sctp/assoc

[Xin Long]

On Tue, Jun 27, 2017 at 3:56 PM, Sun Paul <paulrbk@gmail.com> wrote:
> Hi All
>
>
> what is the max value of TX_QUEUE and RX_QUEUE in /proc/net/sctp/assoc?
TX_QUEUE is assoc->sndbuf_used
RX_QUEUE is assoc->rmem_alloc

when sendmsg and ep->sndbuf_policy is set, it does the check:
 (asoc->sndbuf_used < sk->sk_sndbuf)

when recvmsg and ep->rcvbuf_policy is set, it does the check:
 (asoc->rmem_alloc < sk->sk_rcvbuf)

so what you're asking is how to know the value of sk->sk_sndbuf/sk_rcvbuf.

by  /proc/net/sctp/assoc, it's the last two column: sndbuf rcvbuf
by "sctp_diag interface", it's mem[SK_MEMINFO_SNDBUF/SK_MEMINFO_RCVBUF]
by getsockopt, it's SO_SNDBUF/SO_RCVBUF


>
> How we can determine the value?
>
> - RBK
> --
> To unsubscribe from this list: send the line "unsubscribe linux-sctp" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: TX_QUEUE and RX_QUEUE in /proc/net/sctp/assoc

[Sun Paul]

hi Xin

do you mean TX_QUEUE/RX_QUEUE in /proc/net/sctp/assocs instead of last
two column?

 ASSOC     SOCK   STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE
LPORT RPORT LADDRS <-> RADDRS HBINT INS OUTS MAXRT T1X T2X RTXC

On Tue, Jun 27, 2017 at 7:41 PM, Xin Long <lucien.xin@gmail.com> wrote:
> On Tue, Jun 27, 2017 at 3:56 PM, Sun Paul <paulrbk@gmail.com> wrote:
>> Hi All
>>
>>
>> what is the max value of TX_QUEUE and RX_QUEUE in /proc/net/sctp/assoc?
> TX_QUEUE is assoc->sndbuf_used
> RX_QUEUE is assoc->rmem_alloc
>
> when sendmsg and ep->sndbuf_policy is set, it does the check:
>  (asoc->sndbuf_used < sk->sk_sndbuf)
>
> when recvmsg and ep->rcvbuf_policy is set, it does the check:
>  (asoc->rmem_alloc < sk->sk_rcvbuf)
>
> so what you're asking is how to know the value of sk->sk_sndbuf/sk_rcvbuf.
>
> by  /proc/net/sctp/assoc, it's the last two column: sndbuf rcvbuf
> by "sctp_diag interface", it's mem[SK_MEMINFO_SNDBUF/SK_MEMINFO_RCVBUF]
> by getsockopt, it's SO_SNDBUF/SO_RCVBUF
>
>
>>
>> How we can determine the value?
>>
>> - RBK
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-sctp" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: TX_QUEUE and RX_QUEUE in /proc/net/sctp/assoc

[Xin Long]

On Wed, Jun 28, 2017 at 9:17 AM, Sun Paul <paulrbk@gmail.com> wrote:
> hi Xin
>
> do you mean TX_QUEUE/RX_QUEUE in /proc/net/sctp/assocs instead of last
> two column?
>
>  ASSOC     SOCK   STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE
> LPORT RPORT LADDRS <-> RADDRS HBINT INS OUTS MAXRT T1X T2X RTXC
ah, your kernel is too old. it's supported since (v3.9-rc5):
commit f406c8b9693f2f71ef2caeb0b68521a7d22d00f0
Author: Dilip Daya <dilip.daya@hp.com>
Date:   Tue Apr 16 01:39:07 2013 +0000

    sctp: Add buffer utilization fields to /proc/net/sctp/assocs

after which, # cat /proc/net/sctp/assocs
 ASSOC     SOCK   STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE
LPORT RPORT LADDRS <-> RADDRS HBINT INS OUTS MAXRT T1X T2X RTXC wmema
wmemq sndbuf rcvbuf

then the last two column: "sndbuf" "rcvbuf"

>
> On Tue, Jun 27, 2017 at 7:41 PM, Xin Long <lucien.xin@gmail.com> wrote:
>> On Tue, Jun 27, 2017 at 3:56 PM, Sun Paul <paulrbk@gmail.com> wrote:
>>> Hi All
>>>
>>>
>>> what is the max value of TX_QUEUE and RX_QUEUE in /proc/net/sctp/assoc?
>> TX_QUEUE is assoc->sndbuf_used
>> RX_QUEUE is assoc->rmem_alloc
>>
>> when sendmsg and ep->sndbuf_policy is set, it does the check:
>>  (asoc->sndbuf_used < sk->sk_sndbuf)
>>
>> when recvmsg and ep->rcvbuf_policy is set, it does the check:
>>  (asoc->rmem_alloc < sk->sk_rcvbuf)
>>
>> so what you're asking is how to know the value of sk->sk_sndbuf/sk_rcvbuf.
>>
>> by  /proc/net/sctp/assoc, it's the last two column: sndbuf rcvbuf
>> by "sctp_diag interface", it's mem[SK_MEMINFO_SNDBUF/SK_MEMINFO_RCVBUF]
>> by getsockopt, it's SO_SNDBUF/SO_RCVBUF
>>
>>
>>>
>>> How we can determine the value?
>>>
>>> - RBK
>>> --
>>> To unsubscribe from this list: send the line "unsubscribe linux-sctp" in
>>> the body of a message to majordomo@vger.kernel.org
>>> More majordomo info at  http://vger.kernel.org/majordomo-info.html