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Date: Fri, 26 Oct 2007 17:34:17 +0200 From: Andi Kleen <ak@...e.de> To: Jean Delvare <jdelvare@...e.de> Cc: netdev@...r.kernel.org, Andi Kleen <ak@...e.de> Subject: Re: [PATCH] net: Saner thash_entries default with much memory On Fri, Oct 26, 2007 at 05:21:31PM +0200, Jean Delvare wrote: > I know that /proc/net/tcp is > deprecated in favor of tcp_diag, however at the moment netstat only > knows of the former. Even tcp_diag will be slow when all slots are dumped. It's a fundamental problem of the data structure. /proc has slightly higher constant factor overhead, that's all. Also there are some tricks to make it a little faster (e.g. the old patches to not take the lock for empty buckets) but again it's only just patching constant factors, not the fundamental scaling issue. > I propose 2 millions of entries as the arbitrary high limit. This It's probably still far too large. -Andi - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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