From: "Américo Wang" <xiyou.wangcong@gmail.com>
To: Cypher Wu <cypher.w@gmail.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
linux-kernel@vger.kernel.org, netdev <netdev@vger.kernel.org>
Subject: Re: Kernel rwlock design, Multicore and IGMP
Date: Fri, 12 Nov 2010 14:28:31 +0800 [thread overview]
Message-ID: <20101112062831.GA5660@cr0.nay.redhat.com> (raw)
In-Reply-To: <AANLkTik93QUQxSDmwd4Qj-gXQiWWPzd68JPAYAHBAsHR@mail.gmail.com>
On Fri, Nov 12, 2010 at 11:32:59AM +0800, Cypher Wu wrote:
>>
>> Is TILE using ticket spinlocks ?
>>
Eric, yes.
>
>What ticket spinlocks means? Could you explain a little, pls:) I'm not
>familiar with Linux kernel, I'm trying to get more understanding of it
>since I'm working on Linux platform now.
>
You might want to search "ticket spinlock" with google. :)
Briefly speaking, it is introduced to solve unfairness
of the old spinlock implementation. In linux kernel, not all
arch implement this. X86 implementation is done by Nick with
asm code, while tile uses C to implement it.
next prev parent reply other threads:[~2010-11-12 6:28 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <AANLkTikvT=x9eBovn2-m6HLqk7wyXSAR3sc9jCQ0C6mL@mail.gmail.com>
2010-11-11 15:23 ` Kernel rwlock design, Multicore and IGMP Eric Dumazet
2010-11-11 15:32 ` Eric Dumazet
2010-11-12 3:32 ` Cypher Wu
2010-11-12 6:28 ` Américo Wang [this message]
2010-11-12 7:13 ` Américo Wang
2010-11-12 7:27 ` Eric Dumazet
2010-11-12 8:19 ` Américo Wang
2010-11-12 9:09 ` Yong Zhang
2010-11-12 9:18 ` Américo Wang
2010-11-12 11:06 ` Cypher Wu
2010-11-13 6:35 ` Américo Wang
2010-11-12 13:00 ` Yong Zhang
2010-11-13 6:28 ` Américo Wang
2010-11-12 9:22 ` Eric Dumazet
2010-11-12 9:33 ` Américo Wang
2010-11-12 13:34 ` [PATCH net-next-2.6] igmp: RCU conversion of in_dev->mc_list Eric Dumazet
2010-11-12 14:26 ` Eric Dumazet
2010-11-12 15:46 ` [PATCH net-next-2.6 V2] " Eric Dumazet
2010-11-12 21:19 ` David Miller
2010-11-13 6:44 ` Américo Wang
2010-11-13 22:54 ` Kernel rwlock design, Multicore and IGMP Peter Zijlstra
2010-11-12 11:10 ` Cypher Wu
2010-11-12 11:25 ` Eric Dumazet
2010-11-13 22:53 ` Peter Zijlstra
[not found] ` <ZXmP8hjgLHA.4648@exchange1.tad.internal.tilera.com>
2010-11-13 23:03 ` Chris Metcalf
2010-11-15 7:22 ` Cypher Wu
2010-11-15 11:18 ` Cypher Wu
2010-11-15 11:31 ` Eric Dumazet
2010-11-17 1:30 ` Cypher Wu
2010-11-17 4:43 ` Eric Dumazet
2010-11-15 14:18 ` [PATCH] arch/tile: fix rwlock so would-be write lockers don't block new readers Chris Metcalf
2010-11-15 14:52 ` Eric Dumazet
2010-11-15 15:10 ` Chris Metcalf
2010-11-22 5:39 ` Cypher Wu
2010-11-22 13:35 ` Chris Metcalf
2010-11-23 1:36 ` Cypher Wu
2010-11-23 21:02 ` Chris Metcalf
2010-11-24 2:53 ` Cypher Wu
2010-11-24 14:09 ` Chris Metcalf
2010-11-24 16:37 ` Cypher Wu
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