Re: Any issue to be considered if ethernet send buffer is modified

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



* Ashoka K | 2013-08-30 13:51:14 [+0530]:

>Hi,
Hi,

>I use embedded system with 2.6.33, Preempt patch. To reduce the
>latency of sending data by our application, the ethernet send buffer
>is modified with setsockopt().
>
>Before modification the send buffer size by default was shown as 16384 bytes.
>But on proc system value shown is different, both default and max are same:
>/proc/sys/net/core/wmem_default = 108544
>
>Eventhough the above value is not modified, why the default is shown
>as 16384 instead 108544. Did kernel change these values during sending
>traffic ?
>
>If send buffer is set by setsockopt(), is this value modified by
>kernel during run time?

Try to grep for sysctl_wmem_default. Atleast on v3.10 this value is
initialized at compile time and only updated via sysctl and not by the
kernel.

>AK

Sebastian
--
To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.linux-learn.org/faqs




[Index of Archives]     [Audio]     [Hams]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Fedora Users]

  Powered by Linux