tmtests/tmcontext01: New test

7 files changed, 598 insertions, 0 deletions

diff --git a/testsuites/tmtests/Makefile.am b/testsuites/tmtests/Makefile.am
index 2e473653d4..6a5a75a6a2 100644
--- a/testsuites/tmtests/Makefile.am
+++ b/testsuites/tmtests/Makefile.am
@@ -3,6 +3,7 @@ ACLOCAL_AMFLAGS = -I ../aclocal
 SUBDIRS = tmck tmoverhd tm01 tm02 tm03 tm04 tm05 tm06 tm07 tm08 tm09 tm10 \
     tm11 tm12 tm13 tm14 tm15 tm16 tm17 tm18 tm19 tm20 tm21 tm22 tm23 tm24 \
     tm25 tm26 tm27 tm28 tm29 tm30
+SUBDIRS += tmcontext01
 
 include $(top_srcdir)/../automake/subdirs.am
 include $(top_srcdir)/../automake/local.am
diff --git a/testsuites/tmtests/configure.ac b/testsuites/tmtests/configure.ac
index 7e1c267a3f..1e3241ffb3 100644
--- a/testsuites/tmtests/configure.ac
+++ b/testsuites/tmtests/configure.ac
@@ -28,6 +28,7 @@ AC_SUBST(OPERATION_COUNT)
 
 # Explicitly list all Makefiles here
 AC_CONFIG_FILES([Makefile
+tmcontext01/Makefile
 tmck/Makefile
 tmoverhd/Makefile
 tm01/Makefile
diff --git a/testsuites/tmtests/tmcontext01/Makefile.am b/testsuites/tmtests/tmcontext01/Makefile.am
new file mode 100644
index 0000000000..6612272dc9
--- /dev/null
+++ b/testsuites/tmtests/tmcontext01/Makefile.am
@@ -0,0 +1,19 @@
+rtems_tests_PROGRAMS = tmcontext01
+tmcontext01_SOURCES = init.c
+
+dist_rtems_tests_DATA = tmcontext01.scn tmcontext01.doc
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
+include $(top_srcdir)/../automake/compile.am
+include $(top_srcdir)/../automake/leaf.am
+
+AM_CPPFLAGS += -I$(top_srcdir)/../support/include
+
+LINK_OBJS = $(tmcontext01_OBJECTS)
+LINK_LIBS = $(tmcontext01_LDLIBS)
+
+tmcontext01$(EXEEXT): $(tmcontext01_OBJECTS) $(tmcontext01_DEPENDENCIES)
+	@rm -f tmcontext01$(EXEEXT)
+	$(make-exe)
+
+include $(top_srcdir)/../automake/local.am
diff --git a/testsuites/tmtests/tmcontext01/init.c b/testsuites/tmtests/tmcontext01/init.c
new file mode 100644
index 0000000000..ba3bcec02d
--- /dev/null
+++ b/testsuites/tmtests/tmcontext01/init.c
@@ -0,0 +1,273 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include <rtems/counter.h>
+#include <rtems.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <alloca.h>
+
+#include "tmacros.h"
+
+#define FUNCTION_LEVELS 16
+
+#define SAMPLES 123
+
+#define CPU_COUNT 32
+
+static rtems_counter_ticks t[SAMPLES];
+
+static volatile bool always_true = true;
+
+static size_t data_size;
+
+static volatile int *main_data;
+
+static Context_Control ctx;
+
+static void dirty_data_cache(volatile int *d)
+{
+  size_t n = data_size / sizeof(*d);
+  size_t i;
+
+  for (i = 0; i < n; ++i) {
+    d[i] = i;
+  }
+}
+
+static int prevent_opt_func(int m, int n)
+{
+  if (m == 0) {
+    return n + 1;
+  } else if (m > 0 && n == 0) {
+    return prevent_opt_func(m - 1, 1);
+  } else {
+    return prevent_opt_func(m - 1, prevent_opt_func(m, n - 1));
+  }
+}
+
+static int call_at_level(int start, int fl, int s, bool dirty)
+{
+  if (fl == start) {
+    /*
+     * Some architectures like the SPARC have register windows.  A side-effect
+     * of this context switch is that we start with a fresh window set.  On
+     * architectures like ARM or PowerPC this context switch has no effect.
+     */
+    _Context_Switch(&ctx, &ctx);
+  }
+
+  if (fl > 0) {
+    if (always_true) {
+      return call_at_level(start, fl - 1, s, dirty);
+    } else {
+      return prevent_opt_func(fl - 1, fl - 2);
+    }
+  } else {
+    char *volatile space;
+    rtems_counter_ticks a;
+    rtems_counter_ticks b;
+
+    if (dirty) {
+      dirty_data_cache(main_data);
+      rtems_cache_invalidate_entire_instruction();
+    }
+
+    a = rtems_counter_read();
+
+    /* Ensure that we use an untouched stack area */
+    space = alloca(1024);
+    (void) space;
+
+    _Context_Switch(&ctx, &ctx);
+
+    b = rtems_counter_read();
+    t[s] = rtems_counter_difference(b, a);
+
+    return 0;
+  }
+}
+
+static void load_task(rtems_task_argument arg)
+{
+  volatile int *load_data = (volatile int *) arg;
+
+  while (true) {
+    dirty_data_cache(load_data);
+  }
+}
+
+static int cmp(const void *ap, const void *bp)
+{
+  const rtems_counter_ticks *a = ap;
+  const rtems_counter_ticks *b = bp;
+
+  return *a - *b;
+}
+
+static void sort_t(void)
+{
+  qsort(&t[0], SAMPLES, sizeof(t[0]), cmp);
+}
+
+static void test_by_function_level(int fl, bool dirty)
+{
+  rtems_interrupt_level level;
+  rtems_interrupt_lock lock = RTEMS_INTERRUPT_LOCK_INITIALIZER;
+  int s;
+  uint64_t min;
+  uint64_t q1;
+  uint64_t q2;
+  uint64_t q3;
+  uint64_t max;
+
+  rtems_interrupt_lock_acquire(&lock, level);
+
+  for (s = 0; s < SAMPLES; ++s) {
+    call_at_level(fl, fl, s, dirty);
+  }
+
+  rtems_interrupt_lock_release(&lock, level);
+
+  sort_t();
+
+  min = t[0];
+  q1 = t[(1 * SAMPLES) / 4];
+  q2 = t[SAMPLES / 2];
+  q3 = t[(3 * SAMPLES) / 4];
+  max = t[SAMPLES - 1];
+
+  printf(
+    "    <Sample functionNestLevel=\"%i\">\n"
+    "      <Min unit=\"ns\">%" PRIu64 "</Min>"
+      "<Q1 unit=\"ns\">%" PRIu64 "</Q1>"
+      "<Q2 unit=\"ns\">%" PRIu64 "</Q2>"
+      "<Q3 unit=\"ns\">%" PRIu64 "</Q3>"
+      "<Max unit=\"ns\">%" PRIu64 "</Max>\n"
+    "    </Sample>\n",
+    fl,
+    rtems_counter_ticks_to_nanoseconds(min),
+    rtems_counter_ticks_to_nanoseconds(q1),
+    rtems_counter_ticks_to_nanoseconds(q2),
+    rtems_counter_ticks_to_nanoseconds(q3),
+    rtems_counter_ticks_to_nanoseconds(max)
+  );
+}
+
+static void test(bool dirty, uint32_t load)
+{
+  int fl;
+
+  printf(
+    "  <ContextSwitchTest environment=\"%s\"",
+    dirty ? "dirty" : "normal"
+  );
+
+  if (load > 0) {
+    printf(" load=\"%" PRIu32 "\"", load);
+  }
+
+  printf(">\n");
+
+  for (fl = 0; fl < FUNCTION_LEVELS; ++fl) {
+    test_by_function_level(fl, dirty);
+  }
+
+  printf("  </ContextSwitchTest>\n");
+}
+
+static void Init(rtems_task_argument arg)
+{
+  uint32_t load = 0;
+
+  printf(
+    "\n"
+    "\n"
+    "<?xml version=\"1.0\"?>\n"
+    "<!-- *** TEST TMCONTEXT 1 *** -->\n"
+    "<Test>\n"
+  );
+
+  data_size = rtems_cache_get_data_cache_size(0);
+  if (data_size > 0) {
+    main_data = malloc(data_size);
+    rtems_test_assert(main_data != NULL);
+  }
+
+  test(false, load);
+  test(true, load);
+
+  for (load = 1; load < rtems_smp_get_processor_count(); ++load) {
+    rtems_status_code sc;
+    rtems_id id;
+    volatile int *load_data = NULL;
+
+    if (data_size > 0) {
+      load_data = malloc(data_size);
+      if (load_data == NULL) {
+        load_data = main_data;
+      }
+    }
+
+    sc = rtems_task_create(
+      rtems_build_name('L', 'O', 'A', 'D'),
+      1,
+      RTEMS_MINIMUM_STACK_SIZE,
+      RTEMS_DEFAULT_MODES,
+      RTEMS_DEFAULT_ATTRIBUTES,
+      &id
+    );
+    rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+
+    sc = rtems_task_start(id, load_task, (rtems_task_argument) load_data);
+    rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+
+    test(true, load);
+  }
+
+  printf(
+    "</Test>\n"
+    "<!-- *** END OF TEST TMCONTEXT 1 *** -->\n"
+  );
+
+  rtems_test_exit(0);
+}
+
+/*
+ * Do not use a clock driver, since this will disturb the test in the "normal"
+ * environment.
+ */
+#define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
+
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+
+#define CONFIGURE_MAXIMUM_TASKS (1 + CPU_COUNT)
+
+#define CONFIGURE_INIT_TASK_STACK_SIZE (32 * 1024)
+
+#define CONFIGURE_SMP_APPLICATION
+
+#define CONFIGURE_SMP_MAXIMUM_PROCESSORS CPU_COUNT
+
+#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
+
+#define CONFIGURE_INIT
+
+#include <rtems/confdefs.h>
diff --git a/testsuites/tmtests/tmcontext01/plot.py b/testsuites/tmtests/tmcontext01/plot.py
new file mode 100644
index 0000000000..897c8e2b3c
--- /dev/null
+++ b/testsuites/tmtests/tmcontext01/plot.py
@@ -0,0 +1,37 @@
+#
+# Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+#
+# The license and distribution terms for this file may be
+# found in the file LICENSE in this distribution or at
+# http://www.rtems.com/license/LICENSE.
+#
+
+import libxml2
+from libxml2 import xmlNode
+import matplotlib.pyplot as plt
+doc = libxml2.parseFile("tmcontext01.scn")
+ctx = doc.xpathNewContext()
+
+def plot(y):
+	n=len(y)
+	x=range(0, n)
+	plt.plot(x, y)
+
+plt.title("context switch timing test")
+plt.xlabel('function nest level')
+plt.ylabel('context switch time [ns]')
+
+for e in ["normal", "dirty"]:
+	for i in ["Min", "Q1", "Q2", "Q3", "Max"]:
+		y=map(xmlNode.getContent, ctx.xpathEval("/Test/ContextSwitchTest[@environment='" + e + "' and not(@load)]/Sample/" + i))
+		plot(y)
+load=1
+while load > 0:
+	for i in ["Min", "Q1", "Q2", "Q3", "Max"]:
+		y=map(xmlNode.getContent, ctx.xpathEval("/Test/ContextSwitchTest[@environment='dirty' and @load='" + str(load) + "']/Sample/" + i))
+		if len(y) > 0:
+			plot(y)
+			load = load + 1
+		else:
+			load = 0
+plt.show()
diff --git a/testsuites/tmtests/tmcontext01/tmcontext01.doc b/testsuites/tmtests/tmcontext01/tmcontext01.doc
new file mode 100644
index 0000000000..a1b739b6ab
--- /dev/null
+++ b/testsuites/tmtests/tmcontext01/tmcontext01.doc
@@ -0,0 +1,12 @@
+This file describes the directives and concepts tested by this test set.
+
+test set name: tmcontext01
+
+directives:
+
+  - _CPU_Context_switch()
+
+concepts:
+
+  - Measure the context switch times depending on function nest level and cache
+    state.
diff --git a/testsuites/tmtests/tmcontext01/tmcontext01.scn b/testsuites/tmtests/tmcontext01/tmcontext01.scn
new file mode 100644
index 0000000000..9044619319
--- /dev/null
+++ b/testsuites/tmtests/tmcontext01/tmcontext01.scn
@@ -0,0 +1,255 @@
+<?xml version="1.0"?>
+<!-- *** TEST TMCONTEXT 1 *** -->
+<Test>
+  <ContextSwitchTest environment="normal">
+    <Sample functionNestLevel="0">
+      <Min unit="ns">2440</Min><Q1 unit="ns">2440</Q1><Q2 unit="ns">2480</Q2><Q3 unit="ns">2480</Q3><Max unit="ns">2800</Max>
+    </Sample>
+    <Sample functionNestLevel="1">
+      <Min unit="ns">3520</Min><Q1 unit="ns">3760</Q1><Q2 unit="ns">3800</Q2><Q3 unit="ns">3800</Q3><Max unit="ns">4120</Max>
+    </Sample>
+    <Sample functionNestLevel="2">
+      <Min unit="ns">4280</Min><Q1 unit="ns">4720</Q1><Q2 unit="ns">4720</Q2><Q3 unit="ns">5040</Q3><Max unit="ns">5080</Max>
+    </Sample>
+    <Sample functionNestLevel="3">
+      <Min unit="ns">5320</Min><Q1 unit="ns">5640</Q1><Q2 unit="ns">5680</Q2><Q3 unit="ns">5960</Q3><Max unit="ns">6000</Max>
+    </Sample>
+    <Sample functionNestLevel="4">
+      <Min unit="ns">6360</Min><Q1 unit="ns">6600</Q1><Q2 unit="ns">6600</Q2><Q3 unit="ns">6920</Q3><Max unit="ns">6920</Max>
+    </Sample>
+    <Sample functionNestLevel="5">
+      <Min unit="ns">7480</Min><Q1 unit="ns">7520</Q1><Q2 unit="ns">7840</Q2><Q3 unit="ns">7840</Q3><Max unit="ns">7880</Max>
+    </Sample>
+    <Sample functionNestLevel="6">
+      <Min unit="ns">8480</Min><Q1 unit="ns">8480</Q1><Q2 unit="ns">8800</Q2><Q3 unit="ns">8800</Q3><Max unit="ns">8840</Max>
+    </Sample>
+    <Sample functionNestLevel="7">
+      <Min unit="ns">8840</Min><Q1 unit="ns">8960</Q1><Q2 unit="ns">9280</Q2><Q3 unit="ns">9280</Q3><Max unit="ns">9320</Max>
+    </Sample>
+    <Sample functionNestLevel="8">
+      <Min unit="ns">8920</Min><Q1 unit="ns">8960</Q1><Q2 unit="ns">9280</Q2><Q3 unit="ns">9280</Q3><Max unit="ns">9320</Max>
+    </Sample>
+    <Sample functionNestLevel="9">
+      <Min unit="ns">8920</Min><Q1 unit="ns">8960</Q1><Q2 unit="ns">8960</Q2><Q3 unit="ns">9280</Q3><Max unit="ns">9280</Max>
+    </Sample>
+    <Sample functionNestLevel="10">
+      <Min unit="ns">8800</Min><Q1 unit="ns">8960</Q1><Q2 unit="ns">9240</Q2><Q3 unit="ns">9280</Q3><Max unit="ns">9280</Max>
+    </Sample>
+    <Sample functionNestLevel="11">
+      <Min unit="ns">8920</Min><Q1 unit="ns">8960</Q1><Q2 unit="ns">9280</Q2><Q3 unit="ns">9280</Q3><Max unit="ns">9280</Max>
+    </Sample>
+    <Sample functionNestLevel="12">
+      <Min unit="ns">8920</Min><Q1 unit="ns">8960</Q1><Q2 unit="ns">9240</Q2><Q3 unit="ns">9280</Q3><Max unit="ns">9320</Max>
+    </Sample>
+    <Sample functionNestLevel="13">
+      <Min unit="ns">8920</Min><Q1 unit="ns">8960</Q1><Q2 unit="ns">9240</Q2><Q3 unit="ns">9280</Q3><Max unit="ns">9280</Max>
+    </Sample>
+    <Sample functionNestLevel="14">
+      <Min unit="ns">8920</Min><Q1 unit="ns">8960</Q1><Q2 unit="ns">9240</Q2><Q3 unit="ns">9280</Q3><Max unit="ns">9280</Max>
+    </Sample>
+    <Sample functionNestLevel="15">
+      <Min unit="ns">8920</Min><Q1 unit="ns">8960</Q1><Q2 unit="ns">8960</Q2><Q3 unit="ns">9280</Q3><Max unit="ns">9280</Max>
+    </Sample>
+  </ContextSwitchTest>
+  <ContextSwitchTest environment="dirty">
+    <Sample functionNestLevel="0">
+      <Min unit="ns">9720</Min><Q1 unit="ns">10560</Q1><Q2 unit="ns">10600</Q2><Q3 unit="ns">10680</Q3><Max unit="ns">11160</Max>
+    </Sample>
+    <Sample functionNestLevel="1">
+      <Min unit="ns">11840</Min><Q1 unit="ns">12280</Q1><Q2 unit="ns">12560</Q2><Q3 unit="ns">12600</Q3><Max unit="ns">12640</Max>
+    </Sample>
+    <Sample functionNestLevel="2">
+      <Min unit="ns">12880</Min><Q1 unit="ns">13560</Q1><Q2 unit="ns">13600</Q2><Q3 unit="ns">13640</Q3><Max unit="ns">13680</Max>
+    </Sample>
+    <Sample functionNestLevel="3">
+      <Min unit="ns">13960</Min><Q1 unit="ns">14640</Q1><Q2 unit="ns">14680</Q2><Q3 unit="ns">14720</Q3><Max unit="ns">14720</Max>
+    </Sample>
+    <Sample functionNestLevel="4">
+      <Min unit="ns">15000</Min><Q1 unit="ns">15680</Q1><Q2 unit="ns">15760</Q2><Q3 unit="ns">15760</Q3><Max unit="ns">15800</Max>
+    </Sample>
+    <Sample functionNestLevel="5">
+      <Min unit="ns">16320</Min><Q1 unit="ns">16720</Q1><Q2 unit="ns">16800</Q2><Q3 unit="ns">16800</Q3><Max unit="ns">17040</Max>
+    </Sample>
+    <Sample functionNestLevel="6">
+      <Min unit="ns">17320</Min><Q1 unit="ns">17560</Q1><Q2 unit="ns">17800</Q2><Q3 unit="ns">17880</Q3><Max unit="ns">18160</Max>
+    </Sample>
+    <Sample functionNestLevel="7">
+      <Min unit="ns">17440</Min><Q1 unit="ns">17800</Q1><Q2 unit="ns">17840</Q2><Q3 unit="ns">17880</Q3><Max unit="ns">18160</Max>
+    </Sample>
+    <Sample functionNestLevel="8">
+      <Min unit="ns">17360</Min><Q1 unit="ns">17800</Q1><Q2 unit="ns">17840</Q2><Q3 unit="ns">17880</Q3><Max unit="ns">18200</Max>
+    </Sample>
+    <Sample functionNestLevel="9">
+      <Min unit="ns">17400</Min><Q1 unit="ns">17800</Q1><Q2 unit="ns">17840</Q2><Q3 unit="ns">17880</Q3><Max unit="ns">18120</Max>
+    </Sample>
+    <Sample functionNestLevel="10">
+      <Min unit="ns">17320</Min><Q1 unit="ns">17800</Q1><Q2 unit="ns">17840</Q2><Q3 unit="ns">17880</Q3><Max unit="ns">18200</Max>
+    </Sample>
+    <Sample functionNestLevel="11">
+      <Min unit="ns">17360</Min><Q1 unit="ns">17840</Q1><Q2 unit="ns">17840</Q2><Q3 unit="ns">17880</Q3><Max unit="ns">18160</Max>
+    </Sample>
+    <Sample functionNestLevel="12">
+      <Min unit="ns">17360</Min><Q1 unit="ns">17800</Q1><Q2 unit="ns">17840</Q2><Q3 unit="ns">17880</Q3><Max unit="ns">18160</Max>
+    </Sample>
+    <Sample functionNestLevel="13">
+      <Min unit="ns">17360</Min><Q1 unit="ns">17800</Q1><Q2 unit="ns">17840</Q2><Q3 unit="ns">17880</Q3><Max unit="ns">18200</Max>
+    </Sample>
+    <Sample functionNestLevel="14">
+      <Min unit="ns">17760</Min><Q1 unit="ns">17840</Q1><Q2 unit="ns">17840</Q2><Q3 unit="ns">17880</Q3><Max unit="ns">18200</Max>
+    </Sample>
+    <Sample functionNestLevel="15">
+      <Min unit="ns">17360</Min><Q1 unit="ns">17800</Q1><Q2 unit="ns">17840</Q2><Q3 unit="ns">17880</Q3><Max unit="ns">18200</Max>
+    </Sample>
+  </ContextSwitchTest>
+  <ContextSwitchTest environment="dirty" load="1">
+    <Sample functionNestLevel="0">
+      <Min unit="ns">23800</Min><Q1 unit="ns">24440</Q1><Q2 unit="ns">24640</Q2><Q3 unit="ns">24720</Q3><Max unit="ns">25080</Max>
+    </Sample>
+    <Sample functionNestLevel="1">
+      <Min unit="ns">28040</Min><Q1 unit="ns">28560</Q1><Q2 unit="ns">28640</Q2><Q3 unit="ns">28680</Q3><Max unit="ns">28720</Max>
+    </Sample>
+    <Sample functionNestLevel="2">
+      <Min unit="ns">31600</Min><Q1 unit="ns">32160</Q1><Q2 unit="ns">32160</Q2><Q3 unit="ns">32200</Q3><Max unit="ns">32280</Max>
+    </Sample>
+    <Sample functionNestLevel="3">
+      <Min unit="ns">35400</Min><Q1 unit="ns">35720</Q1><Q2 unit="ns">35760</Q2><Q3 unit="ns">35920</Q3><Max unit="ns">36080</Max>
+    </Sample>
+    <Sample functionNestLevel="4">
+      <Min unit="ns">38960</Min><Q1 unit="ns">39280</Q1><Q2 unit="ns">39320</Q2><Q3 unit="ns">39560</Q3><Max unit="ns">39640</Max>
+    </Sample>
+    <Sample functionNestLevel="5">
+      <Min unit="ns">42480</Min><Q1 unit="ns">42840</Q1><Q2 unit="ns">43080</Q2><Q3 unit="ns">43120</Q3><Max unit="ns">43200</Max>
+    </Sample>
+    <Sample functionNestLevel="6">
+      <Min unit="ns">46120</Min><Q1 unit="ns">46600</Q1><Q2 unit="ns">46640</Q2><Q3 unit="ns">46680</Q3><Max unit="ns">46880</Max>
+    </Sample>
+    <Sample functionNestLevel="7">
+      <Min unit="ns">46080</Min><Q1 unit="ns">46600</Q1><Q2 unit="ns">46640</Q2><Q3 unit="ns">46680</Q3><Max unit="ns">46760</Max>
+    </Sample>
+    <Sample functionNestLevel="8">
+      <Min unit="ns">46320</Min><Q1 unit="ns">46600</Q1><Q2 unit="ns">46640</Q2><Q3 unit="ns">46680</Q3><Max unit="ns">47040</Max>
+    </Sample>
+    <Sample functionNestLevel="9">
+      <Min unit="ns">46040</Min><Q1 unit="ns">46600</Q1><Q2 unit="ns">46640</Q2><Q3 unit="ns">46680</Q3><Max unit="ns">46960</Max>
+    </Sample>
+    <Sample functionNestLevel="10">
+      <Min unit="ns">45960</Min><Q1 unit="ns">46600</Q1><Q2 unit="ns">46640</Q2><Q3 unit="ns">46680</Q3><Max unit="ns">46960</Max>
+    </Sample>
+    <Sample functionNestLevel="11">
+      <Min unit="ns">46040</Min><Q1 unit="ns">46600</Q1><Q2 unit="ns">46640</Q2><Q3 unit="ns">46680</Q3><Max unit="ns">46720</Max>
+    </Sample>
+    <Sample functionNestLevel="12">
+      <Min unit="ns">46080</Min><Q1 unit="ns">46600</Q1><Q2 unit="ns">46640</Q2><Q3 unit="ns">46680</Q3><Max unit="ns">46920</Max>
+    </Sample>
+    <Sample functionNestLevel="13">
+      <Min unit="ns">46080</Min><Q1 unit="ns">46600</Q1><Q2 unit="ns">46640</Q2><Q3 unit="ns">46680</Q3><Max unit="ns">46720</Max>
+    </Sample>
+    <Sample functionNestLevel="14">
+      <Min unit="ns">46280</Min><Q1 unit="ns">46600</Q1><Q2 unit="ns">46640</Q2><Q3 unit="ns">46680</Q3><Max unit="ns">46760</Max>
+    </Sample>
+    <Sample functionNestLevel="15">
+      <Min unit="ns">46360</Min><Q1 unit="ns">46600</Q1><Q2 unit="ns">46640</Q2><Q3 unit="ns">46680</Q3><Max unit="ns">47040</Max>
+    </Sample>
+  </ContextSwitchTest>
+  <ContextSwitchTest environment="dirty" load="2">
+    <Sample functionNestLevel="0">
+      <Min unit="ns">37560</Min><Q1 unit="ns">38200</Q1><Q2 unit="ns">38240</Q2><Q3 unit="ns">38480</Q3><Max unit="ns">38600</Max>
+    </Sample>
+    <Sample functionNestLevel="1">
+      <Min unit="ns">44880</Min><Q1 unit="ns">45480</Q1><Q2 unit="ns">45560</Q2><Q3 unit="ns">45600</Q3><Max unit="ns">45640</Max>
+    </Sample>
+    <Sample functionNestLevel="2">
+      <Min unit="ns">50920</Min><Q1 unit="ns">51560</Q1><Q2 unit="ns">51600</Q2><Q3 unit="ns">51800</Q3><Max unit="ns">51960</Max>
+    </Sample>
+    <Sample functionNestLevel="3">
+      <Min unit="ns">57320</Min><Q1 unit="ns">57640</Q1><Q2 unit="ns">57880</Q2><Q3 unit="ns">57920</Q3><Max unit="ns">58240</Max>
+    </Sample>
+    <Sample functionNestLevel="4">
+      <Min unit="ns">63320</Min><Q1 unit="ns">63920</Q1><Q2 unit="ns">63960</Q2><Q3 unit="ns">64000</Q3><Max unit="ns">64600</Max>
+    </Sample>
+    <Sample functionNestLevel="5">
+      <Min unit="ns">69840</Min><Q1 unit="ns">69960</Q1><Q2 unit="ns">70040</Q2><Q3 unit="ns">70240</Q3><Max unit="ns">70400</Max>
+    </Sample>
+    <Sample functionNestLevel="6">
+      <Min unit="ns">75600</Min><Q1 unit="ns">76200</Q1><Q2 unit="ns">76280</Q2><Q3 unit="ns">76320</Q3><Max unit="ns">76880</Max>
+    </Sample>
+    <Sample functionNestLevel="7">
+      <Min unit="ns">75440</Min><Q1 unit="ns">76240</Q1><Q2 unit="ns">76280</Q2><Q3 unit="ns">76320</Q3><Max unit="ns">76840</Max>
+    </Sample>
+    <Sample functionNestLevel="8">
+      <Min unit="ns">75640</Min><Q1 unit="ns">76200</Q1><Q2 unit="ns">76280</Q2><Q3 unit="ns">76320</Q3><Max unit="ns">76960</Max>
+    </Sample>
+    <Sample functionNestLevel="9">
+      <Min unit="ns">75640</Min><Q1 unit="ns">76240</Q1><Q2 unit="ns">76280</Q2><Q3 unit="ns">76320</Q3><Max unit="ns">76440</Max>
+    </Sample>
+    <Sample functionNestLevel="10">
+      <Min unit="ns">75920</Min><Q1 unit="ns">76240</Q1><Q2 unit="ns">76280</Q2><Q3 unit="ns">76320</Q3><Max unit="ns">76400</Max>
+    </Sample>
+    <Sample functionNestLevel="11">
+      <Min unit="ns">75600</Min><Q1 unit="ns">76200</Q1><Q2 unit="ns">76280</Q2><Q3 unit="ns">76320</Q3><Max unit="ns">76920</Max>
+    </Sample>
+    <Sample functionNestLevel="12">
+      <Min unit="ns">75360</Min><Q1 unit="ns">76200</Q1><Q2 unit="ns">76280</Q2><Q3 unit="ns">76320</Q3><Max unit="ns">76440</Max>
+    </Sample>
+    <Sample functionNestLevel="13">
+      <Min unit="ns">75360</Min><Q1 unit="ns">76200</Q1><Q2 unit="ns">76280</Q2><Q3 unit="ns">76320</Q3><Max unit="ns">76960</Max>
+    </Sample>
+    <Sample functionNestLevel="14">
+      <Min unit="ns">75640</Min><Q1 unit="ns">76160</Q1><Q2 unit="ns">76280</Q2><Q3 unit="ns">76320</Q3><Max unit="ns">76960</Max>
+    </Sample>
+    <Sample functionNestLevel="15">
+      <Min unit="ns">75960</Min><Q1 unit="ns">76240</Q1><Q2 unit="ns">76280</Q2><Q3 unit="ns">76320</Q3><Max unit="ns">76400</Max>
+    </Sample>
+  </ContextSwitchTest>
+  <ContextSwitchTest environment="dirty" load="3">
+    <Sample functionNestLevel="0">
+      <Min unit="ns">52400</Min><Q1 unit="ns">52480</Q1><Q2 unit="ns">52520</Q2><Q3 unit="ns">52800</Q3><Max unit="ns">53720</Max>
+    </Sample>
+    <Sample functionNestLevel="1">
+      <Min unit="ns">61680</Min><Q1 unit="ns">62600</Q1><Q2 unit="ns">62640</Q2><Q3 unit="ns">62680</Q3><Max unit="ns">62800</Max>
+    </Sample>
+    <Sample functionNestLevel="2">
+      <Min unit="ns">70160</Min><Q1 unit="ns">71160</Q1><Q2 unit="ns">71360</Q2><Q3 unit="ns">71480</Q3><Max unit="ns">72160</Max>
+    </Sample>
+    <Sample functionNestLevel="3">
+      <Min unit="ns">79000</Min><Q1 unit="ns">79960</Q1><Q2 unit="ns">80000</Q2><Q3 unit="ns">80000</Q3><Max unit="ns">80920</Max>
+    </Sample>
+    <Sample functionNestLevel="4">
+      <Min unit="ns">87600</Min><Q1 unit="ns">88480</Q1><Q2 unit="ns">88760</Q2><Q3 unit="ns">88800</Q3><Max unit="ns">88880</Max>
+    </Sample>
+    <Sample functionNestLevel="5">
+      <Min unit="ns">96320</Min><Q1 unit="ns">97280</Q1><Q2 unit="ns">97320</Q2><Q3 unit="ns">97360</Q3><Max unit="ns">98600</Max>
+    </Sample>
+    <Sample functionNestLevel="6">
+      <Min unit="ns">105160</Min><Q1 unit="ns">105840</Q1><Q2 unit="ns">106080</Q2><Q3 unit="ns">106160</Q3><Max unit="ns">107120</Max>
+    </Sample>
+    <Sample functionNestLevel="7">
+      <Min unit="ns">105200</Min><Q1 unit="ns">106040</Q1><Q2 unit="ns">106120</Q2><Q3 unit="ns">106160</Q3><Max unit="ns">107080</Max>
+    </Sample>
+    <Sample functionNestLevel="8">
+      <Min unit="ns">104880</Min><Q1 unit="ns">105920</Q1><Q2 unit="ns">106080</Q2><Q3 unit="ns">106160</Q3><Max unit="ns">106280</Max>
+    </Sample>
+    <Sample functionNestLevel="9">
+      <Min unit="ns">105760</Min><Q1 unit="ns">106000</Q1><Q2 unit="ns">106120</Q2><Q3 unit="ns">106160</Q3><Max unit="ns">106280</Max>
+    </Sample>
+    <Sample functionNestLevel="10">
+      <Min unit="ns">104880</Min><Q1 unit="ns">105880</Q1><Q2 unit="ns">106080</Q2><Q3 unit="ns">106160</Q3><Max unit="ns">107080</Max>
+    </Sample>
+    <Sample functionNestLevel="11">
+      <Min unit="ns">105720</Min><Q1 unit="ns">105960</Q1><Q2 unit="ns">106120</Q2><Q3 unit="ns">106160</Q3><Max unit="ns">106240</Max>
+    </Sample>
+    <Sample functionNestLevel="12">
+      <Min unit="ns">104960</Min><Q1 unit="ns">105880</Q1><Q2 unit="ns">106080</Q2><Q3 unit="ns">106160</Q3><Max unit="ns">106280</Max>
+    </Sample>
+    <Sample functionNestLevel="13">
+      <Min unit="ns">104880</Min><Q1 unit="ns">105880</Q1><Q2 unit="ns">106120</Q2><Q3 unit="ns">106160</Q3><Max unit="ns">106280</Max>
+    </Sample>
+    <Sample functionNestLevel="14">
+      <Min unit="ns">105720</Min><Q1 unit="ns">105880</Q1><Q2 unit="ns">106080</Q2><Q3 unit="ns">106160</Q3><Max unit="ns">106240</Max>
+    </Sample>
+    <Sample functionNestLevel="15">
+      <Min unit="ns">104920</Min><Q1 unit="ns">105840</Q1><Q2 unit="ns">106120</Q2><Q3 unit="ns">106160</Q3><Max unit="ns">106280</Max>
+    </Sample>
+  </ContextSwitchTest>
+</Test>
+<!-- *** END OF TEST TMCONTEXT 1 *** -->