From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 18 Nov 2005 11:56:57 -0800 From: Chris Wright Subject: Re: [RFC][PATCH 0/8] Critical Page Pool Message-ID: <20051118195657.GI7991@shell0.pdx.osdl.net> References: <437E2C69.4000708@us.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <437E2C69.4000708@us.ibm.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Matthew Dobson Cc: linux-kernel@vger.kernel.org, Linux Memory Management List-ID: * Matthew Dobson (colpatch@us.ibm.com) wrote: > /proc/sys/vm/critical_pages: write the number of pages you want to reserve > for the critical pool into this file How do you size this pool? Allocations are interrupt driven, so how to you ensure you're allocating for the cluster network traffic you care about? > /proc/sys/vm/in_emergency: write a non-zero value to tell the kernel that > the system is in an emergency state and authorize the kernel to dip into > the critical pool to satisfy critical allocations. Seems odd to me. Why make this another knob? How did you run to set this flag if you're in emergency and kswapd is going nuts? thanks, -chris -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org