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- 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
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