AustereCache

AustereCache is a memory-efficient SSD cache system enhanced by compression and deduplication. You can find more details in our publication.

Publication

• Qiuping Wang, Jinhong Li, Wen Xia, Erik Kruus, Biplob Debnath, and Patrick P. C. Lee.
  Austere Flash Caching with Deduplication and Compression.
  USENIX ATC 2020.

Build

Testbed Environment

1. Third party libraries: LZ4, ISA-L_crypto
2. OS: Ubuntu 16.04 with Linux kernel 4.4.0-170-generic
3. Compiler tools: cmake 3.15.2, gcc 5.4.0

Build third_party libraries

mkdir third_party && cd third_party

LZ4 compression algorithms

wget https://github.com/lz4/lz4/archive/v1.9.1.zip
unzip v1.9.1.zip
cd lz4-1.9.1
make
cd ..

ISA-L Crypto

git clone https://github.com/intel/isa-l_crypto.git
cd isa-l_crypto
./autogen.sh
./configure --prefix=$(pwd)
make && make install
cd ..

Build the systems

Austere Cache

mkdir build && cd build
cmake .. -DCMAKE_BUILD_TYPE=Release
make
cd ..

CacheDedup D-LRU

mkdir build && cd build
cmake .. -DCMAKE_BUILD_TYPE=Release -DDLRU=1
make
cd ..

CacheDedup D-ARC

mkdir build && cd build
cmake .. -DCMAKE_BUILD_TYPE=Release -DDARC=1
make
cd ..

CacheDedup CD-ARC

mkdir build && cd build
cmake .. -DCMAKE_BUILD_TYPE=Release -DCDARC=1
make
cd ..

Trace Generation

Process FIU traces

1. Download the FIU traces into the directory traces/. You can get the traces from http://iotta.snia.org/traces/390, namely FIU IODedup.
2. Go into the directory traces/ and start processing.

cd traces
./process_traces.sh     # May take long time
cd ..

3. You can check the basic statistics of the generated traces using calculate_basics.sh.

cd traces
./calculate_basics.sh   # May take long time
cd ..

Generate synthetic traces

cd traces
./syn_trace_gen.sh
cd ..

Run Demo

We prepare a generated synthetic trace sample with I/O deduplication ratio 50%, w/r ratio 7:3 (traces/sample.txt), along with a configuration file (conf/sample.json). After building the project, you can run the sample trace with following commands, or generate traces according to the trace generation procedure. For AC-D, D-LRU, and D-ARC

./run ../conf/sample_nocompression.json

For AC-DC and CD-ARC

./run ../conf/sample_compression.json

You could find the sample output of the demo program under ./conf/example_output.txt for AC-DC.