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From: supercilious.dude@gmail.com
To: linux-kernel@vger.kernel.org
Subject: KSM kernel interface
Date: Sat, 19 Feb 2011 04:07:41 +0000	[thread overview]
Message-ID: <ijnfme$snp$1@dough.gmane.org> (raw)

Hi,

Is there a way to enable KSM globally for all eligible pages in the 
system such that applications need not call madvise() themselves? If 
not, is there a way to do so on behalf of a particular application 
without an ugly LD_PRELOAD hack?

Perhaps there is a small kernel modification that might make this 
possible or provide a sysfs flag that enables it (off by default of course)?

I read through the code very briefly, and as far as I can tell, I need 
to add the VM_MERGEABLE flag to all eligible VMAs at the time they are 
created and also __ksm_enter() the associated mm_struct at creation 
also. Would that work?

Thanks


             reply	other threads:[~2011-02-19  4:10 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-19  4:07 supercilious.dude [this message]
2011-02-19 18:54 ` KSM kernel interface Hugh Dickins
2011-02-19 19:22   ` richard -rw- weinberger
2011-02-20  2:45   ` supercilious.dude

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