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Re: more mips64 vmalloc() space

from [John Hawkes] [Permanent Link][Original]
To: "Ralf Baechle" <ralf@xxxxxxxxxxx>
Subject: Re: more mips64 vmalloc() space
From: "John Hawkes" <hawkes@xxxxxxxxxxxx>
Date: Mon, 12 Mar 2001 17:00:08 -0800
Cc: <linux-origin@xxxxxxxxxxx>
References: <004001c0ab55$da882820$6701a8c0@xxxxxxxxxxxxxxxxxxxx> <20010313014921.E28305@xxxxxxxxxxxxxxxx>
Sender: owner-linux-origin@xxxxxxxxxxx 
From: "Ralf Baechle" <ralf@xxxxxxxxxxx>
> The question I have is more generic - how much vmalloc space can we
> expect to be used in worst case in practice on an Origin?

"Worst case in practice"?  I have no clue.  The current KPTBL_PAGE_ORDER
(==1) supports about 3.5MB, which isn't much for a multi-GB system.  I
need KPTBL_PAGE_ORDER==2 to run both lockmeter and the "reflex"
benchmark that creates 256 cloned threads.

John Hawkes
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