Updated how we compute response time

examples/timing_exam.rs

@@ -40,7 +40,7 @@ const APP: () = {
     #[inline(never)]
     #[task(schedule = [t1], priority = 1)]
     fn t1(cx: t1::Context) {
-        let start = Instant::now();
+        //let start = Instant::now();
         asm::bkpt();
         cx.schedule.t1(cx.scheduled + 100_000.cycles()).unwrap();
         asm::bkpt();
@@ -50,7 +50,7 @@ const APP: () = {
 
         // 2) your code here to update T1_MAX_RP and
         // break if deadline missed
-        let resp: u32= start.elapsed().as_cycles();
+        let resp: u32= cx.scheduled.elapsed().as_cycles();
         if  resp > 100_000 {
             //panic!();
             asm::bkpt();
@@ -67,7 +67,7 @@ const APP: () = {
     #[inline(never)]
     #[task(schedule = [t2], resources = [R1, R2], priority = 2)]
     fn t2(mut cx: t2::Context) {
-        let start = Instant::now();
+        //let start = Instant::now();
 
         asm::bkpt();
         cx.schedule.t2(cx.scheduled + 200_000.cycles()).unwrap();
@@ -95,7 +95,7 @@ const APP: () = {
 
         // 2) your code here to update T2_MAX_RP and
         // break if deadline missed
-        let resp: u32= start.elapsed().as_cycles();
+        let resp: u32= cx.scheduled.elapsed().as_cycles();
         if  resp > 200_000 {
             //panic!();
             asm::bkpt();
@@ -112,7 +112,7 @@ const APP: () = {
     #[inline(never)]
     #[task(schedule = [t3], resources = [R2], priority = 3)]
     fn t3(cx: t3::Context) {
-        let start = Instant::now();
+        //let start = Instant::now();
         asm::bkpt();
         cx.schedule.t3(cx.scheduled + 50_000.cycles()).unwrap();
         asm::bkpt();
@@ -129,7 +129,7 @@ const APP: () = {
 
         // 2) your code here to update T3_MAX_RP and
         // break if deadline missed
-        let resp: u32= start.elapsed().as_cycles();
+        let resp: u32= cx.scheduled.elapsed().as_cycles();
         if  resp > 50_000 {
             //panic!();
             asm::bkpt();