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commit 55ce5d0511e4c927beb63a96af330e8581de7457
Author: yinshengkai <yinsheng...@xiaomi.com>
AuthorDate: Thu Feb 23 16:31:02 2023 +0800

    note: remove SCHED_INSTRUMENTATION_HIRES
    
    Signed-off-by: yinshengkai <yinsheng...@xiaomi.com>
---
 Documentation/guides/tasktraceuser.rst |  4 ----
 drivers/note/note_driver.c             | 12 ------------
 include/nuttx/sched_note.h             | 13 +++++++------
 sched/Kconfig                          |  6 ------
 4 files changed, 7 insertions(+), 28 deletions(-)

diff --git a/Documentation/guides/tasktraceuser.rst 
b/Documentation/guides/tasktraceuser.rst
index d5495fdc50..375d7d0e4a 100644
--- a/Documentation/guides/tasktraceuser.rst
+++ b/Documentation/guides/tasktraceuser.rst
@@ -42,10 +42,6 @@ The following configurations are configurable parameters for 
trace.
     - Bit 2 = Enable IRQ instrumentation
     - Bit 3 = Enable collecting syscall arguments
 
-- ``CONFIG_SCHED_INSTRUMENTATION_HIRES``
-
-  - If enabled, use higher resolution system timer for instrumentation.
-
 - ``CONFIG_DRIVERS_NOTE_TASKNAME_BUFSIZE``
 
   - Specify the task name buffer size in bytes.
diff --git a/drivers/note/note_driver.c b/drivers/note/note_driver.c
index 4594452572..fd3181e5f7 100644
--- a/drivers/note/note_driver.c
+++ b/drivers/note/note_driver.c
@@ -223,13 +223,8 @@ static void note_common(FAR struct tcb_s *tcb,
                         FAR struct note_common_s *note,
                         uint8_t length, uint8_t type)
 {
-#ifdef CONFIG_SCHED_INSTRUMENTATION_HIRES
   struct timespec ts;
-
   clock_systime_timespec(&ts);
-#else
-  clock_t systime = clock_systime_ticks();
-#endif
 
   /* Save all of the common fields */
 
@@ -240,15 +235,8 @@ static void note_common(FAR struct tcb_s *tcb,
   note->nc_cpu      = tcb->cpu;
 #endif
   sched_note_flatten(note->nc_pid, &tcb->pid, sizeof(tcb->pid));
-
-#ifdef CONFIG_SCHED_INSTRUMENTATION_HIRES
   sched_note_flatten(note->nc_systime_nsec, &ts.tv_nsec, sizeof(ts.tv_nsec));
   sched_note_flatten(note->nc_systime_sec, &ts.tv_sec, sizeof(ts.tv_sec));
-#else
-  /* Save the LS 32-bits of the system timer in little endian order */
-
-  sched_note_flatten(note->nc_systime, &systime, sizeof(systime));
-#endif
 }
 
 /****************************************************************************
diff --git a/include/nuttx/sched_note.h b/include/nuttx/sched_note.h
index 7a79e54423..9be8a950ba 100644
--- a/include/nuttx/sched_note.h
+++ b/include/nuttx/sched_note.h
@@ -217,12 +217,13 @@ struct note_common_s
 #endif
   uint8_t nc_pid[sizeof(pid_t)]; /* ID of the thread/task */
 
-#ifdef CONFIG_SCHED_INSTRUMENTATION_HIRES
-  uint8_t nc_systime_sec[sizeof(time_t)]; /* Time when note was buffered (sec) 
*/
-  uint8_t nc_systime_nsec[sizeof(long)];  /* Time when note was buffered 
(nsec) */
-#else
-  uint8_t nc_systime[sizeof(clock_t)]; /* Time when note was buffered */
-#endif
+  /* Time when note was buffered (sec) */
+
+  uint8_t nc_systime_sec[sizeof(time_t)];
+
+  /* Time when note was buffered (nsec) */
+
+  uint8_t nc_systime_nsec[sizeof(long)];
 };
 
 /* This is the specific form of the NOTE_START note */
diff --git a/sched/Kconfig b/sched/Kconfig
index b274e6d8c0..cb90fca2a8 100644
--- a/sched/Kconfig
+++ b/sched/Kconfig
@@ -973,12 +973,6 @@ config SCHED_INSTRUMENTATION_CPUSET
        ---help---
                Monitor only CPUs in the bitset.  Bit 0=CPU0, Bit1=CPU1, etc.
 
-config SCHED_INSTRUMENTATION_HIRES
-       bool "Use Hi-Res RTC for instrumentation"
-       default n
-       ---help---
-               Use higher resolution system timer for instrumentation.
-
 config SCHED_INSTRUMENTATION_FILTER
        bool "Instrumentation filter"
        default n

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