From: Alex Shi <alex.shi@intel.com>
To: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
mgorman@suse.de, npiggin@gmail.com, tglx@linutronix.de,
mingo@redhat.com, hpa@zytor.com, arnd@arndb.de,
rostedt@goodmis.org, fweisbec@gmail.com, jeremy@goop.org,
gregkh@linuxfoundation.org, glommer@redhat.com, riel@redhat.com,
luto@mit.edu, avi@redhat.com, len.brown@intel.com,
dhowells@redhat.com, fenghua.yu@intel.com,
borislav.petkov@amd.com, yinghai@kernel.org, cpw@sgi.com,
steiner@sgi.com, akpm@linux-foundation.org, penberg@kernel.org,
hughd@google.com, rientjes@google.com,
kosaki.motohiro@jp.fujitsu.com, n-horiguchi@ah.jp.nec.com,
paul.gortmaker@windriver.com, trenn@suse.de, tj@kernel.org,
oleg@redhat.com, axboe@kernel.dk, kamezawa.hiroyu@jp.fujitsu.com,
viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3] TLB flush optimization
Date: Thu, 10 May 2012 13:06:07 +0800 [thread overview]
Message-ID: <4FAB4CBF.3060604@intel.com> (raw)
In-Reply-To: <20120509234512.GA27196@tassilo.jf.intel.com>
On 05/10/2012 07:45 AM, Andi Kleen wrote:
>> Have you tried what happens if you get rid of the funny multi-vector-ipi
>> scheme and use the generic smp_call functions?
>
> Yes we did. It's much faster on larger systems.
>
> But haven't sent the patch yet because wasn't sure if it wasn't slower
> on small systems.
Why you worried about the small system? are there some bad example there?
It should be helpful after multiple invlpg enabled. I like to take a
look this later. :)
>
> -Andi
>
>
next prev parent reply other threads:[~2012-05-10 5:07 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-08 14:03 [PATCH v3] TLB flush optimization Alex Shi
2012-05-08 14:03 ` [PATCH v3 1/7] x86/tlb_info: get last level TLB entry number of CPU Alex Shi
2012-05-08 14:03 ` [PATCH v3 2/7] x86/flush_tlb: try flush_tlb_single one by one in flush_tlb_range Alex Shi
2012-05-08 14:03 ` [PATCH v3 3/7] x86/tlb: fall back to flush all when meet a THP large page Alex Shi
2012-05-08 14:03 ` [PATCH v3 4/7] x86/tlb: add tlb flush all factor for specific CPUs Alex Shi
2012-05-08 15:08 ` Peter Zijlstra
2012-05-09 2:03 ` Alex Shi
2012-05-08 15:12 ` H. Peter Anvin
2012-05-09 2:10 ` Alex Shi
2012-05-08 15:15 ` H. Peter Anvin
2012-05-08 15:56 ` Andi Kleen
2012-05-08 16:40 ` H. Peter Anvin
2012-05-08 15:18 ` H. Peter Anvin
2012-05-09 1:41 ` Alex Shi
2012-05-08 14:03 ` [PATCH v3 5/7] x86/tlb: remove comments for tlb_flush_range implement suggestion Alex Shi
2012-05-09 8:22 ` Nick Piggin
2012-05-08 14:03 ` [PATCH v3 6/7] x86/tlb: optimizing flush_tlb_mm Alex Shi
2012-05-08 15:09 ` Peter Zijlstra
2012-05-08 14:03 ` [PATCH v3 7/7] x86/tlb: add tlb_flushall_factor into sysfs for user change Alex Shi
2012-05-08 15:11 ` Peter Zijlstra
2012-05-08 15:20 ` H. Peter Anvin
2012-05-08 15:25 ` Borislav Petkov
2012-05-08 15:31 ` H. Peter Anvin
2012-05-08 15:41 ` Borislav Petkov
2012-05-08 15:48 ` H. Peter Anvin
2012-05-08 16:10 ` Greg KH
2012-05-08 16:28 ` Borislav Petkov
2012-05-09 5:03 ` Alex Shi
2012-05-08 15:01 ` [PATCH v3] TLB flush optimization Peter Zijlstra
2012-05-09 1:58 ` Alex Shi
2012-05-09 23:45 ` Andi Kleen
2012-05-10 5:06 ` Alex Shi [this message]
2012-05-10 7:49 ` HATAYAMA Daisuke
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