Xilinx ZLIB Compression and Decompression¶
ZLIB example resides in L2/demos/zlib directory.
Follow build instructions to generate host executable and binary.
The binary host file generated is named as “xil_zlib” and it is present in ./build directory.
Results¶
Overall Resource Utilization¶
Table below presents resource utilization of Xilinx Zlib compress/decompress kernels. The final Fmax achieved is 284MHz
| Flow | LUT | LUTMem | REG | BRAM | URAM |
|---|---|---|---|---|---|
| Compress | 82.6K | 26K | 84.7K | 105 | 48 |
| DeCompress | 13.8K | 506 | 13.7K | 8 | 4 |
Compress Kernel Resource Utilization¶
| Kernel | LUT | LUTMem | REG | BRAM | URAM |
|---|---|---|---|---|---|
| LZ77 | 43.8K | 10.4K | 46.9K | 69 | 48 |
| Huffman | 38.8K | 10.2K | 37.8K | 36 | 0 |
Decompress Kernel Resource Utilization¶
| Kernel | LUT | LUTMem | REG | BRAM | URAM |
|---|---|---|---|---|---|
| Decompress | 10.7K | 162 | 8.1K | 4 | 4 |
| DmReader | 2.1K | 294 | 3.8K | 3 | 0 |
| DmWriter | 1K | 50 | 1.8K | 1 | 0 |
Performance Data¶
| Topic | Best Kernel Throughput |
|---|---|
| Compression | 2 GB/s |
| Decompression | 733 MB/s |
| Average Compression Ratio | 2.74 (Silesia Corpus) |
| [*] | Decompression uses high fmax options (Bitwidth: 32bit, ByteGen Loop: 2) |
Executable Usage:
To execute single file for compression :
./build/xil_zlib -sx ./build/xclbin_<xsa_name>_<TARGET mode>/compress_decompress.xclbin -c <input file_name>To execute single file for decompression :
./build/xil_zlib -sx ./build/xclbin_<xsa_name>_<TARGET mode>/compress_decompress.xclbin -d <compressed file_name>To validate single file (compress & decompress) :
./build/xil_zlib -sx ./build/xclbin_<xsa_name>_<TARGET mode>/compress_decompress.xclbin -v <input file_name>To validate multiple files (compress & decompress) :
./build/xil_zlib -sx ./build/xclbin_<xsa_name>_<TARGET mode>/compress_decompress.xclbin -l <files.list><files.list>: Contains various file names with current path
The usage of the generated executable is as follows:
Usage: application.exe -[-h-c-d-sx-v-l-k] --help, -h Print Help Options Default: [false] --compress, -c Compress --decompress, -d Decompress --single_xclbin, -sx Single XCLBIN Default: [single] --file_list, -l List of Input Files --compress_decompress, -v Compress Decompress --cu, -k CU Default: [0]