diff options
Diffstat (limited to 'testsuites/rhealstone/taskswitch')
-rw-r--r-- | testsuites/rhealstone/taskswitch/Makefile.am | 23 | ||||
-rw-r--r-- | testsuites/rhealstone/taskswitch/taskswitch.adoc | 27 | ||||
-rw-r--r-- | testsuites/rhealstone/taskswitch/taskswitch.c | 118 |
3 files changed, 0 insertions, 168 deletions
diff --git a/testsuites/rhealstone/taskswitch/Makefile.am b/testsuites/rhealstone/taskswitch/Makefile.am deleted file mode 100644 index d8c417236b..0000000000 --- a/testsuites/rhealstone/taskswitch/Makefile.am +++ /dev/null @@ -1,23 +0,0 @@ -MANAGERS = all - -rtems_tests_PROGRAMS = taskswitch -taskswitch_SOURCES = taskswitch.c -taskswitch_SOURCES += ../../tmtests/include/timesys.h - -dist_rtems_tests_DATA = taskswitch.adoc - -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)/../tmtests/include -AM_CPPFLAGS += -I$(top_srcdir)/../support/include - -LINK_OBJS = $(taskswitch_OBJECTS) $(taskswitch_LDADD) -LINK_LIBS = $(taskswitch_LDLIBS) - -taskswitch$(EXEEXT): $(taskswitch_OBJECTS) $(taskswitch_DEPENDENCIES) - @rm -f taskswitch$(EXEEXT) - $(make-exe) - -include $(top_srcdir)/../automake/local.am diff --git a/testsuites/rhealstone/taskswitch/taskswitch.adoc b/testsuites/rhealstone/taskswitch/taskswitch.adoc deleted file mode 100644 index 9b2d10a40c..0000000000 --- a/testsuites/rhealstone/taskswitch/taskswitch.adoc +++ /dev/null @@ -1,27 +0,0 @@ -== Task Switch Benchmark - -This benchmark measures the average time it takes the system to switch between -two independent and active tasks of equal priority. Task switching is synchronous -and non-preemptive. - -=== Directives - - * rtems_task_wake_after - - -=== Methodology - -This benchmark utilizes rtems_task_wake_after( RTEMS_YIELD_PROCESSOR ) to -achieve a synchronous, non-preemptive task switch. rtems_task_wake_after -used in this context is essentially just a yield. - -As this is an average, we structure the benchmark code in a way that results -in some overhead being included that inflates the total elapsed time. This -overhead includes: - * the time it takes to iterate through the for loops (minimal - * overhead code in rtems_task_wake_after - -We instantiate two tasks, and time how long it takes for them to switch back -and forth between themselves a total of BENCHMARKS * 2 times. We then use -the put_time call to divide this total elapsed time by BENCHMARKS * 2, giving -an average, and subtract out the overhead time we found earlier. diff --git a/testsuites/rhealstone/taskswitch/taskswitch.c b/testsuites/rhealstone/taskswitch/taskswitch.c deleted file mode 100644 index cb9030901a..0000000000 --- a/testsuites/rhealstone/taskswitch/taskswitch.c +++ /dev/null @@ -1,118 +0,0 @@ -/* - * Copyright (c) 2014 Daniel Ramirez. (javamonn@gmail.com) - * - * This file's license is 2-clause BSD as in this distribution's LICENSE file. - */ - -#include <rtems/timerdrv.h> -#include <timesys.h> - -#define BENCHMARKS 50000 - -rtems_task Task01( rtems_task_argument ignored ); -rtems_task Task02( rtems_task_argument ignored ); -rtems_task Init( rtems_task_argument ignored ); - -rtems_id Task_id[2]; -rtems_name Task_name[2]; -uint32_t loop_overhead; -uint32_t dir_overhead; -unsigned long count1, count2; -rtems_status_code status; - -rtems_task Task02( rtems_task_argument ignored ) -{ - uint32_t telapsed; - - /* All overhead accounted for now, we can begin benchmark */ - benchmark_timer_initialize(); - - for ( count1 = 0; count1 < BENCHMARKS - 1; count1++ ) { - rtems_task_wake_after( RTEMS_YIELD_PROCESSOR ); - } - - telapsed = benchmark_timer_read(); - put_time( - "Rhealstone: Task switch", - telapsed, - ( BENCHMARKS * 2 ) - 1, /* ( BENCHMARKS * 2 ) - 1 total benchmarks */ - loop_overhead, /* Overhead of loop */ - dir_overhead /* Overhead of rtems_task_wake_after directive */ - ); - - rtems_test_exit( 0 ); -} - -rtems_task Task01( rtems_task_argument ignored ) -{ - status = rtems_task_start( Task_id[1], Task02, 0 ); - directive_failed( status, "rtems_task_start of TA02" ); - - /* Yield processor so second task can startup and run */ - rtems_task_wake_after( RTEMS_YIELD_PROCESSOR ); - - for ( count2 = 0; count2 < BENCHMARKS; count2++ ) { - rtems_task_wake_after( RTEMS_YIELD_PROCESSOR ); - } - - /* Should never reach here */ - rtems_test_assert( false ); - -} - -rtems_task Init( rtems_task_argument ignored ) -{ - Print_Warning(); - - Task_name[0] = rtems_build_name( 'T','A','0','1' ); - status = rtems_task_create( - Task_name[0], - 30, - RTEMS_MINIMUM_STACK_SIZE, - RTEMS_DEFAULT_MODES, - RTEMS_DEFAULT_ATTRIBUTES, - &Task_id[0] - ); - directive_failed( status, "rtems_task_create of TA01" ); - - Task_name[1] = rtems_build_name( 'T','A','0','2' ); - status = rtems_task_create( - Task_name[1], - 30, - RTEMS_MINIMUM_STACK_SIZE, - RTEMS_DEFAULT_MODES, - RTEMS_DEFAULT_ATTRIBUTES, - &Task_id[1] - ); - directive_failed( status, "rtems_task_create of TA02" ); - - /* find overhead of routine (no task switches) */ - benchmark_timer_initialize(); - for ( count1 = 0; count1 < BENCHMARKS - 1; count1++ ) { - /* rtems_task_wake_after( RTEMS_YIELD_PROCESSOR ) */ - } - for ( count2 = 0; count2 < BENCHMARKS; count2++ ) { - /* rtems_task_wake_after( RTEMS_YIELD_PROCESSOR ) */ - } - loop_overhead = benchmark_timer_read(); - - /* find overhead of rtems_task_wake_after call (no task switches) */ - benchmark_timer_initialize(); - rtems_task_wake_after( RTEMS_YIELD_PROCESSOR ); - dir_overhead = benchmark_timer_read(); - - status = rtems_task_start( Task_id[0], Task01, 0); - directive_failed( status, "rtems_task_start of TA01" ); - - status = rtems_task_delete( RTEMS_SELF); - directive_failed( status, "rtems_task_delete of INIT" ); -} - -/* configuration information */ -#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER -#define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER -#define CONFIGURE_TICKS_PER_TIMESLICE 0 -#define CONFIGURE_RTEMS_INIT_TASKS_TABLE -#define CONFIGURE_MAXIMUM_TASKS 3 -#define CONFIGURE_INIT -#include <rtems/confdefs.h> |