Messages in this thread | | | Subject | Re: [PATCH 08/24] net, diet: Make TCP metrics optional | From | Eric Dumazet <> | Date | Tue, 06 May 2014 13:17:58 -0700 |
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On Tue, 2014-05-06 at 11:32 -0700, Andi Kleen wrote: > > We simply can not compete with user space, as a programmer is free to > > keep what he really wants/needs. > > Not true.
You can shake the kernel as much as you want, you wont make : - a TCP socket - a dentry - an inode - a file structure - eventpoll structures (assuming epoll use) - 2 dst per flow.
In 1024 bytes of memory, and keep an efficient kernel to handle arbitrary number of sockets using the venerable and slow BSD socket api.
I was objecting to the "crazy things like LWIP" comment from Josh, not to your patches in general.
I actually took a look at them but stopped at patch 22
Adding ~1000 lines of code to save few KB was the point I gave up.
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