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FlashIAP: Add timing test

pull/7383/head
David Saada 2018-06-29 20:04:35 +03:00
parent c29fe896a1
commit 7cf5b3a008
1 changed files with 82 additions and 1 deletions
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83
TESTS/mbed_drivers/flashiap/main.cpp
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@ -20,6 +20,7 @@
#endif
#include "utest/utest.h"
#include "utest/utest_serial.h"
#include "unity/unity.h"
#include "greentea-client/test_env.h"
#include <algorithm>
@ -178,15 +179,95 @@ void flashiap_program_error_test()
TEST_ASSERT_EQUAL_INT32(0, ret);
}
void flashiap_timing_test()
{
FlashIAP flash_device;
uint32_t ret = flash_device.init();
TEST_ASSERT_EQUAL_INT32(0, ret);
mbed::Timer timer;
int num_write_sizes;
unsigned int curr_time, byte_usec_ratio;
unsigned int avg_erase_time = 0;
unsigned int max_erase_time = 0, min_erase_time = (unsigned int) -1;
const unsigned int max_writes = 128;
const unsigned int max_write_sizes = 6;
const unsigned int max_byte_usec_ratio = 200;
uint32_t page_size = flash_device.get_page_size();
uint32_t write_size = page_size;
uint32_t end_address = flash_device.get_flash_start() + flash_device.get_flash_size();
utest_printf("\nFlash timing:\n");
uint32_t sector_size = flash_device.get_sector_size(end_address - 1UL);
uint32_t base_address = end_address - sector_size;
timer.start();
for (num_write_sizes = 0; num_write_sizes < max_write_sizes; num_write_sizes++) {
if (write_size > sector_size) {
break;
}
uint8_t *buf = new (std::nothrow) uint8_t[write_size];
if (!buf) {
// Don't fail the test on lack of heap memory for the buffer
break;
}
memset(buf, 0x5A, write_size);
timer.reset();
ret = flash_device.erase(base_address, sector_size);
curr_time = timer.read_us();
avg_erase_time += curr_time;
TEST_ASSERT_EQUAL_INT32(0, ret);
max_erase_time = std::max(max_erase_time, curr_time);
min_erase_time = std::min(min_erase_time, curr_time);
uint32_t address = base_address;
unsigned int avg_write_time = 0;
unsigned int max_write_time = 0, min_write_time = (unsigned int) -1;
int num_writes;
for (num_writes = 0; num_writes < max_writes; num_writes++) {
if ((address + write_size) > end_address) {
break;
}
timer.reset();
ret = flash_device.program(buf, address, write_size);
curr_time = timer.read_us();
avg_write_time += curr_time;
TEST_ASSERT_EQUAL_INT32(0, ret);
max_write_time = std::max(max_write_time, curr_time);
min_write_time = std::min(min_write_time, curr_time);
address += write_size;
}
delete[] buf;
avg_write_time /= num_writes;
utest_printf("Write size %6u bytes: avg %10u, min %10u, max %10u (usec)\n",
write_size, avg_write_time, min_write_time, max_write_time);
byte_usec_ratio = write_size / avg_write_time;
TEST_ASSERT(byte_usec_ratio < max_byte_usec_ratio);
write_size *= 4;
}
if (num_write_sizes) {
avg_erase_time /= num_write_sizes;
utest_printf("\nErase size %6u bytes: avg %10u, min %10u, max %10u (usec)\n\n",
sector_size, avg_erase_time, min_erase_time, max_erase_time);
byte_usec_ratio = sector_size / avg_erase_time;
TEST_ASSERT(byte_usec_ratio < max_byte_usec_ratio);
}
ret = flash_device.deinit();
TEST_ASSERT_EQUAL_INT32(0, ret);
}
Case cases[] = {
Case("FlashIAP - init", flashiap_init_test),
Case("FlashIAP - program", flashiap_program_test),
Case("FlashIAP - program across sectors", flashiap_cross_sector_program_test),
Case("FlashIAP - program errors", flashiap_program_error_test),
Case("FlashIAP - timing", flashiap_timing_test),
};
utest::v1::status_t greentea_test_setup(const size_t number_of_cases) {
GREENTEA_SETUP(20, "default_auto");
GREENTEA_SETUP(120, "default_auto");
return greentea_test_setup_handler(number_of_cases);
}