| Test the nx-gzip function: |
| ========================= |
| |
| Verify that following device exists: |
| /dev/crypto/nx-gzip |
| If you get a permission error run as sudo or set the device permissions: |
| sudo chmod go+rw /dev/crypto/nx-gzip |
| However, chmod may not survive across boots. You may create a udev file such |
| as: |
| /etc/udev/rules.d/99-nx-gzip.rules |
| |
| |
| To manually build and run: |
| $ gcc -O3 -I./include -o gzfht_test gzfht_test.c gzip_vas.c |
| $ gcc -O3 -I./include -o gunz_test gunz_test.c gzip_vas.c |
| |
| |
| Compress any file using Fixed Huffman mode. Output will have a .nx.gz suffix: |
| $ ./gzfht_test gzip_vas.c |
| file gzip_vas.c read, 6413 bytes |
| compressed 6413 to 3124 bytes total, crc32 checksum = abd15e8a |
| |
| |
| Uncompress the previous output. Output will have a .nx.gunzip suffix: |
| ./gunz_test gzip_vas.c.nx.gz |
| gzHeader FLG 0 |
| 00 00 00 00 04 03 |
| gzHeader MTIME, XFL, OS ignored |
| computed checksum abd15e8a isize 0000190d |
| stored checksum abd15e8a isize 0000190d |
| decomp is complete: fclose |
| |
| |
| Compare two files: |
| $ sha1sum gzip_vas.c.nx.gz.nx.gunzip gzip_vas.c |
| bf43e3c0c3651f5f22b6f9784cd9b1eeab4120b6 gzip_vas.c.nx.gz.nx.gunzip |
| bf43e3c0c3651f5f22b6f9784cd9b1eeab4120b6 gzip_vas.c |
| |
| |
| Note that the code here are intended for testing the nx-gzip hardware function. |
| They are not intended for demonstrating performance or compression ratio. |
| By being simplistic these selftests expect to allocate the entire set of source |
| and target pages in the memory so it needs enough memory to work. |
| For more information and source code consider using: |
| https://github.com/libnxz/power-gzip |
