] aio: make aio wait path to account iowait time
On Fri, Aug 28, 2020 at 11:41:29AM +0200, Jan Kara wrote:
> On Fri 28-08-20 11:07:29, pet...@infradead.org wrote:
> > On Fri, Aug 28, 2020 at 02:07:12PM +0800, Xianting Tian wrote:
> > > As the normal aio wai
On Fri, Aug 28, 2020 at 11:41:29AM +0200, Jan Kara wrote:
> On Fri 28-08-20 11:07:29, pet...@infradead.org wrote:
> > On Fri, Aug 28, 2020 at 02:07:12PM +0800, Xianting Tian wrote:
> > > As the normal aio wait path(read_events() ->
> > > wait_event_interruptible_hrtimeout()) doesn't account iowait
On Fri 28-08-20 11:07:29, pet...@infradead.org wrote:
> On Fri, Aug 28, 2020 at 02:07:12PM +0800, Xianting Tian wrote:
> > As the normal aio wait path(read_events() ->
> > wait_event_interruptible_hrtimeout()) doesn't account iowait time, so use
> > this patch to make it to account iowait time, whi
On Fri, Aug 28, 2020 at 02:07:12PM +0800, Xianting Tian wrote:
> As the normal aio wait path(read_events() ->
> wait_event_interruptible_hrtimeout()) doesn't account iowait time, so use
> this patch to make it to account iowait time, which can truely reflect
> the system io situation when using a t
On Fri 28-08-20 14:07:12, Xianting Tian wrote:
> As the normal aio wait path(read_events() ->
> wait_event_interruptible_hrtimeout()) doesn't account iowait time, so use
> this patch to make it to account iowait time, which can truely reflect
> the system io situation when using a tool like 'top'.
As the normal aio wait path(read_events() ->
wait_event_interruptible_hrtimeout()) doesn't account iowait time, so use
this patch to make it to account iowait time, which can truely reflect
the system io situation when using a tool like 'top'.
The test result as below.
Test environment：
A
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