From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Schmid Subject: How to remove TCP-limits? Date: Sat, 29 Jan 2005 17:06:53 +0100 Message-ID: <41FBB49D.2020809@rapidforum.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: To: netdev@oss.sgi.com Sender: netdev-bounce@oss.sgi.com Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org Referring to the following: >In 2.6.10 there has been a "bug" introduced. You may also call it a feature, but its a crappy >feature for big servers. It seems the kernel is dynamically adjusting the buffer-space available >for sockets. Even if send-buffer has been set to 1024 KB, the kernel blocks at less if there are >enough sockets in use. If you have 10 sockets with 1024 KB each, they do not block at all, using >full 1024 KB. If you have 4000 sockets, they only use 200 KB. So it seems its blocking at 800 MB. >This is good, if you have a 1/3 system, because else the kernel would run out of low mem. But I >have a 2/2 system and I need them for buffers. So what can I do? Where can I adjust the "pool"? How can I disable this? I have been searching the code but I can't find it. Or can I at least adjust it somehow? Thank you in advance. Best regards, Christian Schmid - RapidTec