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Carles Cufi 8c748fd005 kernel: Modify the signature of k_mem_slab_free() 
Modify the signature of the k_mem_slab_free() function with a new one,
replacing the old void **mem with void *mem as a parameter.

The following function:
void k_mem_slab_free(struct k_mem_slab *slab, void **mem);

has the wrong signature. mem is only used as a regular pointer, so there
is no need to use a double-pointer. The correct signature should be:
void k_mem_slab_free(struct k_mem_slab *slab, void *mem);

The issue with the current signature, although functional, is that it is
extremely confusing. I myself, a veteran Zephyr developer, was confused
by this parameter when looking at it recently.

All in-tree uses of the function have been adapted.

Fixes #61888.

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2023-09-03 18:20:59 -04:00
..
src kernel: Modify the signature of k_mem_slab_free() 2023-09-03 18:20:59 -04:00
CMakeLists.txt cmake: increase minimal required version to 3.20.0 2021-08-20 09:47:34 +02:00
prj.conf tests: move to using CONFIG_MP_MAX_NUM_CPUS 2022-10-20 22:04:10 +09:00
README.txt tests: benchmarks: sys_kernel: Add mem_slab benchmark 2020-12-07 11:36:48 +01:00
testcase.yaml tests: ignore benchmark on some qemu platforms 2023-06-05 20:53:02 -04:00

README.txt 

Title: kernel Object Performance

Description:

The SysKernel test measures the performance of semaphore,
lifo, fifo, stack and memslab objects.

--------------------------------------------------------------------------------

Building and Running Project:

This project outputs to the console. It can be built and executed
on QEMU as follows:

    make run

--------------------------------------------------------------------------------

Troubleshooting:

Problems caused by out-dated project information can be addressed by
issuing one of the following commands then rebuilding the project:

    make clean          # discard results of previous builds
                        # but keep existing configuration info
or
    make pristine       # discard results of previous builds
                        # and restore pre-defined configuration info

--------------------------------------------------------------------------------

Sample Output:

MODULE: kernel API test
KERNEL VERSION: 0x1066300

Each test below is repeated 5000 times;
average time for one iteration is displayed.

TEST CASE: Semaphore #1
TEST COVERAGE:
        k_sem_init
        k_sem_take(K_FOREVER)
        k_sem_give
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: Semaphore #2
TEST COVERAGE:
        k_sem_init
        k_sem_take(TICKS_NONE)
        k_yield
        k_sem_give
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: Semaphore #3
TEST COVERAGE:
        k_sem_init
        k_sem_take(K_FOREVER)
        k_sem_give
        k_sem_give
        k_sem_take(K_FOREVER)
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: LIFO #1
TEST COVERAGE:
        k_lifo_init
        k_lifo_get(K_FOREVER)
        k_lifo_put
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: LIFO #2
TEST COVERAGE:
        k_lifo_init
        k_lifo_get(K_FOREVER)
        k_lifo_get(TICKS_NONE)
        k_lifo_put
        k_yield
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: LIFO #3
TEST COVERAGE:
        k_lifo_init
        k_lifo_get(K_FOREVER)
        k_lifo_put
        k_lifo_get(K_FOREVER)
        k_lifo_put
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: FIFO #1
TEST COVERAGE:
        k_fifo_init
        k_fifo_get(K_FOREVER)
        k_fifo_put
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: FIFO #2
TEST COVERAGE:
        k_fifo_init
        k_fifo_get(K_FOREVER)
        k_fifo_get(TICKS_NONE)
        k_fifo_put
        k_yield
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: FIFO #3
TEST COVERAGE:
        k_fifo_init
        k_fifo_get(K_FOREVER)
        k_fifo_put
        k_fifo_get(K_FOREVER)
        k_fifo_put
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: Stack #1
TEST COVERAGE:
        k_stack_init
        k_stack_pop(K_FOREVER)
        k_stack_push
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: Stack #2
TEST COVERAGE:
        k_stack_init
        k_stack_pop(K_FOREVER)
        k_stack_pop
        k_stack_push
        k_yield
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: Stack #3
TEST COVERAGE:
        k_stack_init
        k_stack_pop(K_FOREVER)
        k_stack_push
        k_stack_pop(K_FOREVER)
        k_stack_push
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: Memslab #1
TEST COVERAGE:
        k_mem_slab_alloc
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

TEST CASE: Memslab #2
TEST COVERAGE:
        k_mem_slab_free
Starting test. Please wait...
TEST RESULT: SUCCESSFUL
DETAILS: Average time for 1 iteration: NNNN nSec
END TEST CASE

PROJECT EXECUTION SUCCESSFUL
QEMU: Terminated