Messages in this thread | | | Date | Wed, 24 Aug 2005 09:39:46 -0700 (PDT) | From | Danial Thom <> | Subject | Re: 2.6.12 Performance problems |
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--- Patrick McHardy <kaber@trash.net> wrote:
> Danial Thom wrote: > > None of this is helpful, but since no one has > > been able to tell me how to tune it to > provide > > absolute priority to the network stack I'll > > assume it can't be done. > > The network stack already has priority over > user processes, > except when executed in process context, so > preemption has > no direct impact on briding or routing > performance. > > The reason why noone answered your question is > because you > don't ask but claim or assume. >
No, its because guys like you snip out content when they reply, and/or only read the parts of messages that you want to read, so when other people enter a thread, they miss the questions that were asked long ago. Quoting my post on Aug 22:
"All of this aside, I need to measure the raw capabilities of the kernel. With 'bsd OSes I can tell what the breaking point is by driving the machine to livelock. Linux seems to have a soft, floating capacity in that it will drop packets here and there for no isolatable reason. I'm having difficulty making a case for its use in a networking appliance, as dropped packets are not acceptable. How do I tune the "its ok to drop packets when x occurs" algorithm to be "its never
ok to drop packets unless x occurs" (such as a queue depth)? Is it possible?"
Danial
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