On 2013年02月21日 01:30, Russell King - ARM Linux wrote:
On Wed, Feb 20, 2013 at 10:54:41PM +0530, anish kumar wrote:
On Thu, 2013-02-21 at 00:39 +0800, buyitian wrote:
i am confused about my test. in one device driver,
i put below code:
printk("start to test test jiffies\n");
local_
On Wed, Feb 20, 2013 at 10:54 PM, anish kumar
wrote:
> On Thu, 2013-02-21 at 00:39 +0800, buyitian wrote:
>> i am confused about my test. in one device driver,
>> i put below code:
>>
>> printk("start to test test jiffies\n");
>>
>> local_irq_save(flags);
>>
>> jf1 = jiffies; // read j
On Wed, 2013-02-20 at 17:30 +, Russell King - ARM Linux wrote:
> On Wed, Feb 20, 2013 at 10:54:41PM +0530, anish kumar wrote:
> > On Thu, 2013-02-21 at 00:39 +0800, buyitian wrote:
> > > i am confused about my test. in one device driver,
> > > i put below code:
> > >
> > > printk("start t
On Wed, Feb 20, 2013 at 10:54:41PM +0530, anish kumar wrote:
> On Thu, 2013-02-21 at 00:39 +0800, buyitian wrote:
> > i am confused about my test. in one device driver,
> > i put below code:
> >
> > printk("start to test test jiffies\n");
> >
> > local_irq_save(flags);
> >
> > jf1 =
On Thu, 2013-02-21 at 00:39 +0800, buyitian wrote:
> i am confused about my test. in one device driver,
> i put below code:
>
> printk("start to test test jiffies\n");
>
> local_irq_save(flags);
>
> jf1 = jiffies; // read jiffies first time
>
> // hold cpu for about 2 seconds(d