| Message ID | 20140919210711.GA15652@linux.intel.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Headers | show |
On Friday, September 19, 2014 02:07:12 PM Todd E Brandt wrote: > This patch adds another suspend_resume trace event for analyze_suspend > to capture. The resume_console call can take several hundred milliseconds > if the printk buffer is full of debug info. The tool will now inform > testers of the wasted time and encourage them to disable it in > production builds. > > Signed-off-by: Todd Brandt <todd.e.brandt@intel.com> Queued up for 3.18, thanks! > ---- > kernel/power/suspend.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c > index 18c6219..e837dd6 100644 > --- a/kernel/power/suspend.c > +++ b/kernel/power/suspend.c > @@ -361,7 +361,9 @@ int suspend_devices_and_enter(suspend_state_t state) > suspend_test_start(); > dpm_resume_end(PMSG_RESUME); > suspend_test_finish("resume devices"); > + trace_suspend_resume(TPS("resume_console"), state, true); > resume_console(); > + trace_suspend_resume(TPS("resume_console"), state, false); > > Close: > platform_suspend_end(state); > -- > To unsubscribe from this list: send the line "unsubscribe linux-pm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 18c6219..e837dd6 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -361,7 +361,9 @@ int suspend_devices_and_enter(suspend_state_t state) suspend_test_start(); dpm_resume_end(PMSG_RESUME); suspend_test_finish("resume devices"); + trace_suspend_resume(TPS("resume_console"), state, true); resume_console(); + trace_suspend_resume(TPS("resume_console"), state, false); Close: platform_suspend_end(state);
This patch adds another suspend_resume trace event for analyze_suspend to capture. The resume_console call can take several hundred milliseconds if the printk buffer is full of debug info. The tool will now inform testers of the wasted time and encourage them to disable it in production builds. Signed-off-by: Todd Brandt <todd.e.brandt@intel.com> ---- kernel/power/suspend.c | 2 ++ 1 file changed, 2 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe linux-pm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html