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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
	John Stultz <john.stultz@linaro.org>,
	Richard Cochran <richardcochran@gmail.com>
Subject: Re: [patch 0/7] timekeeping: Decouple xtime_lock from xtime seqcount
Date: Mon, 14 Nov 2011 07:28:06 +0100	[thread overview]
Message-ID: <1321252086.17837.56.camel@edumazet-laptop> (raw)
In-Reply-To: <20111113230921.728083714@linutronix.de>

Le dimanche 13 novembre 2011 à 23:19 +0000, Thomas Gleixner a écrit :
> xtime_lock which serializes the update of time relevant data
> structures is held over a large code pathes which results in extended
> seqlock contention times on the reader side. This series decouples the
> lock from the seqcount and reduces the seqcount protected sections to
> those which actually update the reader visible data.
> 
> Thanks,

Thanks a lot Thomas, I'll take a look on this serie ASAP.




      parent reply	other threads:[~2011-11-14  6:28 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-13 23:19 Thomas Gleixner
2011-11-13 23:19 ` [patch 2/7] ntp: Shorten xtime seqcount sections Thomas Gleixner
2011-11-13 23:19 ` [patch 1/7] timekeeping: Split xtime lock into lock and seqcount Thomas Gleixner
2011-11-13 23:19 ` [patch 4/7] timekeeper: Reorder so the hot data is together Thomas Gleixner
2011-11-13 23:19 ` [patch 3/7] timekeeping: Make seqcount sections smaller Thomas Gleixner
2011-11-13 23:19 ` [patch 5/7] timekeeping: Move common updates to a function Thomas Gleixner
2011-11-13 23:19 ` [patch 6/7] timekeeping: Add extra timekeeper/xtime structs for calculation Thomas Gleixner
2011-11-13 23:19 ` [patch 7/7] timekeeping: Reduce seqcount section to update timekeeper/xtime Thomas Gleixner
2011-11-14  6:28 ` Eric Dumazet [this message]

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