linux-kernel - Re: [PATCH v3] TLB flush optimization

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Date:	Wed, 09 May 2012 09:58:04 +0800
From:	Alex Shi <alex.shi@...el.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
CC:	mgorman@...e.de, npiggin@...il.com, tglx@...utronix.de,
	mingo@...hat.com, hpa@...or.com, arnd@...db.de,
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	viro@...iv.linux.org.uk, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] TLB flush optimization


>> [PATCH v3 1/7] x86/tlb_info: get last level TLB entry number of CPU
>> [PATCH v3 2/7] x86/flush_tlb: try flush_tlb_single one by one in
>> [PATCH v3 3/7] x86/tlb: fall back to flush all when meet a THP large
>> [PATCH v3 4/7] x86/tlb: add tlb flush all factor for specific CPUs
>> [PATCH v3 5/7] x86/tlb: remove comments for tlb_flush_range
>> [PATCH v3 6/7] x86/tlb: optimizing flush_tlb_mm
>> [PATCH v3 7/7] x86/tlb: add tlb_flushall_factor into sysfs for user
> 
> Have you tried what happens if you get rid of the funny multi-vector-ipi
> scheme and use the generic smp_call functions?


Not yet.
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