Tuning RWIN

[Net Llama!]

How's about this:
http://groups.google.com/groups?hl=en&lr=lang_en&ie=UTF-8&oe=UTF-8&threadm=a28bbf28.0106241909.4cdc32c%40posting.google.com&rnum=3&prev=/groups%3Fas_q%3Drwin%26safe%3Dimages%26ie%3DUTF-8%26oe%3DUTF-8%26as_ugroup%3D*linux*%26lr%3Dlang_en%26num%3D50%26hl%3Den


On 04/10/03 18:48, Brett I. Holcomb wrote:
> Okay, I did an echo somenumber > rmem_max and also rmem_default but the 
> tests showed no change in the RWIN value - it was as if it never changed.  
> How do I change it and make it effective?
> 
> Kurt Wall wrote:
> 
>> An unnamed Administration source, Brett I. Holcomb, wrote:
>> % I've been having problems with low speed on my cable connection.
>> % SpeedGuide shows a Default Receive Window (RWIN) of 5840 and indicates
>> it's
>> % limiting me.  Where do I change this?  According to one guide
>> % /proc/sys/net/core/rmem_default is what should be tuned but that doesn't
>> % seem to help.
>> %
>> % What do I need to adjust to increase RWIN and how do I do it.
>> 
>>>From $KERNEL_SRC/Documentation/filesystem/proc.txt:
>> 
>> /proc/sys/net/core - Network core options
>> -----------------------------------------
>> 
>> rmem_default
>> ------------
>> The default setting of the socket receive buffer in bytes.
>> 
>> rmem_max
>> --------
>> The maximum receive socket buffer size in bytes.
>> 
>> netdev_max_backlog
>> ------------------
>> Maximum number  of  packets,  queued  on  the  INPUT  side, when the
>> interface receives packets faster than kernel can process them.
>> 
>> Kurt
> 

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
L. Friedman                       	       netllama at linux-sxs.org
Linux Step-by-step & TyGeMo: 		    http://netllama.ipfox.com

   6:55pm  up 32 days, 18:24,  3 users,  load average: 0.12, 0.49, 0.32