Re: [PATCH] net: Use SK_MEM_QUANTUM as minimum for tcp/udp rmem/wmem
From: Eric Dumazet
Date: Wed Aug 12 2015 - 13:46:35 EST
On Wed, 2015-08-12 at 20:00 +0300, Sorin Dumitru wrote:
> Would clamping the values to a min value, like setsockopt(SO_SNDBUF)
> does, be an option?
> I still find it odd that SO_SNDBUF limits you, while the /proc
> interface doesn't. If you think it's
> too much, I'm ok with reverting it since it affects scripts.
> On those arches where PAGE_SIZE == 64K(or > 16K) it looks like we have
> smaller than tcp_wmem. Shouldn't we do something about this?
As long as we do not crash if/when root user changes /proc/sys/net
settings, we are good.
I would not care if performance is bad if root does something really
stupid. root user is supposed to not mess things just for fun.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" 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.tux.org/lkml/