Re: [PATCH v2] IPVS: logging sizeof(struct ip_vs_conn) on startup
From: Simon Horman <horms@verge.net.au>
Date: 2009-07-28 00:19:29
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On Mon, Jul 27, 2009 at 11:48:45AM -0700, David Miller wrote:
From: Hannes Eder <redacted> Date: Mon, 27 Jul 2009 15:13:57 +0200quoted
No more guessing, how much memory used by IPVS for a connection. [ The number printed is a lower bound, as ip_vs_conn_cache uses SLAB_HWCACHE_ALIGN. ] Signed-off-by: Hannes Eder <redacted> Signed-off-by: Simon Horman <horms@verge.net.au>Who needs to know this? A developer? They can run tools such as 'pahole' et al. to fish out this information even when only a kernel binary is available. For the user, it's just noise. I'm not applying this, sorry.
Surprisingly its a very common question amongst users, because they want to know how much memory they need. It is of course all a bit silly, because the amount of memory used by the connection table is usually very small, but people still ask.