linux-kernel - Re: [ANNOUNCE] 4.6.4-rt8

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Message-ID: <20160715153122.GC16938@linutronix.de>
Date:	Fri, 15 Jul 2016 17:31:22 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-rt-users <linux-rt-users@...r.kernel.org>
Subject: Re: [ANNOUNCE] 4.6.4-rt8

* Steven Rostedt | 2016-07-15 11:22:44 [-0400]:

>> Changes since v4.6.4-rt8:
>> 
>>   - Import Thomas' timer rework known as "timer: Refactor the timer
>>     wheel" patch set which made its way into the -TIP tree. With this
>>     changes we get NOHZ_FULL working. Finally.
>
>Does this mean that there's no more 1 second tick?

>From tracing there a timer wakeup each second but before we had a wakeup
each jiffy because we could not lookup the next timer without taking the
base lock which we can do now.
However if there is room for improvement to have a wakeup every two or
five seconds I am all for it because from RT point of view we should be
able to do the same things as the non-RT version.

Sebastian