tmedicci opened a new pull request, #3033:
URL: https://github.com/apache/nuttx-apps/pull/3033
## Summary
* testing/fs/mtd_test: Add MTD test to evaluate transfer rates
This test allows measuring write and read operations on an MTD flash device,
evaluating its transfer rates.
## Impact
Impact on user: YES, by providing a testing application for MTD devices
(without any kind of buffering or file system).
Impact on build: NO.
Impact on hardware: NO.
Impact on documentation: NO.
Impact on security: NO.
Impact on compatibility: NO.
## Testing
To test it, create an MTD partition and register it as a block driver. Using
`esp32s3-devkit:spiflash` defconfig, let's try it:
### Building
First of all, apply the following patch (which will be submitted to the
`nuttx` repository):
```
diff --git a/boards/xtensa/esp32s3/common/src/esp32s3_board_spiflash.c
b/boards/xtensa/esp32s3/common/src/esp32s3_board_spiflash.c
index 7d0ceecc6d..37c15357c2 100644
--- a/boards/xtensa/esp32s3/common/src/esp32s3_board_spiflash.c
+++ b/boards/xtensa/esp32s3/common/src/esp32s3_board_spiflash.c
@@ -333,6 +333,14 @@ static int init_storage_partition(void)
return ret;
}
+ ret = ftl_initialize(0, mtd);
+ if (ret < 0)
+ {
+ syslog(LOG_ERR, "ERROR: Failed to initialize the FTL layer: %d\n",
+ ret);
+ return ret;
+ }
+
#ifdef CONFIG_MTD_PARTITION
ret = parse_mtd_partition(mtd, NULL, NULL);
if (ret < 0)
```
After applying it, build the defconfig with the following additional configs:
```
make -j distclean && ./tools/configure.sh esp32s3-devkit:spiflash &&
kconfig-tweak -d ESP32S3_SPIFLASH_SMARTFS && kconfig-tweak --set-val
ESP32S3_SPIFLASH_MTD_BLKSIZE 4096 && kconfig-tweak -e TESTING_MTD_TRANSFER_RATE
&& make olddefconfig && make flash ESPTOOL_PORT=/dev/ttyUSB0 -s -j$(nproc) &&
minicom -D /dev/ttyUSB0
```
### Running
Run the MTD test application:
```
nsh> mtd_test /dev/mtdblock0
```
### Results
```
nsh> mtd_test /dev/mtdblock0
FLASH Test on device with:
Sector size: 4096
Sector count: 256
Erase block: 4096
Total size: 1048576
Starting write operation...
Write operation completed in 4.29 seconds
Total bytes written: 1048576
Transfer rate [write]: 238.69 KiB/s
Starting read operation...
Read operation completed in 0.43 seconds
Total bytes read: 1048576
Transfer rate [read]: 2381.40 KiB/s
Data verification successful: read data matches written data
```
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