From mboxrd@z Thu Jan 1 00:00:00 1970 From: vikram186@gmail.com (Vikram Narayanan) Date: Thu, 28 Apr 2011 21:50:35 +0530 Subject: Enabling tickless kernel feature in ARM In-Reply-To: References: Message-ID: To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org On Thu, Apr 28, 2011 at 8:38 PM, Mulyadi Santosa wrote: > On 28/04/2011, Vikram Narayanan wrote: >> I am planning to have a tick of 10ms. i.e the HZ value as 100. Will >> that be good enough? > > Sorry, you misunderstood me. What I meant was "how long it takes to > reprogram the timer, so it ready to deliver another interupt". This is > based on my rough info that some timers are quick to be reprogrammed, > some are slow...the rest are damn slow. And since we deal with > uncertainty (timers could be needed at any point), the fastest one is > the best bet. > > Hopefully I explain it clearly now... Yeah. Actually I didn't measure the timer reprogramming latency yet. But I think it will be quite good. My assumption may go wrong. Are there any other considerations to take care while implementing the clocksource/clockevents? Thanks, Vikram > > -- > regards, > > Mulyadi Santosa > Freelance Linux trainer and consultant > > blog: the-hydra.blogspot.com > training: mulyaditraining.blogspot.com >