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Date: Fri, 07 Mar 2014 09:17:19 -0800 From: Andi Kleen <andi@...stfloor.org> To: Al Viro <viro@...IV.linux.org.uk> Cc: linux-fsdevel@...r.kernel.org, Linus Torvalds <torvalds@...ux-foundation.org>, linux-kernel@...r.kernel.org, Stephen Tweedie <sct@...hat.com>, Jeremy Eder <jeder@...hat.com> Subject: Re: [PATCH 5/5][RFC][CFT] resizable namespace.c hashes Al Viro <viro@...IV.linux.org.uk> writes: > * switch allocation to alloc_large_system_hash() > * make sizes overridable by boot parameters (mhash_entries=, mphash_entries=) > * switch mountpoint_hashtable from list_head to hlist_head So how much memory does this use on a standard system (<4GB memory)? How much memory does it use on a large system (0.5TB)? How good is your hash function. Would jhash be more appropiate and allow smaller hash tables? Perhaps just want a tree here. -Andi -- ak@...ux.intel.com -- Speaking for myself only -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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