> 5.9.2 | File

> The System.out print can be redirected into log files within the module’s flash file system. The output will be written alternatingly into two files which can be concatenated afterwards to have a single log file.
> Writing the output to a file will slow down the virtual machine. To reduce the impact of logging the output may be written first to a buffer before it is written to the file (buffered mode). The buffered output is written either if the buffer is filled or after 200 ms. If the buffer is not used (secure mode) the output is written directly to the file. Because excessive writing to the module’s flash file system decreases the life time of the flash memory, we recommend using the System.out to file redirection only during development phases.