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MadFS is developed on Ubuntu 20.04.3 LTS and Ubuntu 22.04.1 LTS. It should work on other Linux distributions as well.
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MadFS requires a C++ compiler with C++ 20 support. The compilers known to work includes GCC 11.3.0, GCC 10.3.0, Clang 14.0.0, and Clang 10.0.0.
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Install dependencies and configure the system
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Install build dependencies
sudo apt update sudo apt install -y cmake build-essential gcc-10 g++-10
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Install development dependencies (optional)
# to run sanitizers and formatter sudo apt install -y clang-10 libstdc++-10-dev clang-format-10 # for perf sudo apt install -y linux-tools-common linux-tools-generic linux-tools-`uname -r` # for managing persistent memory and NUMA sudo apt install -y ndctl numactl # for benchmarking sudo apt install -y sqlite3
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Configure the system
./scripts/init.py
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Configure persistent memory
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To emulate a persistent memory device using DRAM, please follow the guide here.
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Initialize namespaces (optional)
# remove existing namespaces on region0 sudo ndctl destroy-namespace all --region=region0 --force # create new namespace `/dev/pmem0` on region0 sudo ndctl create-namespace --region=region0 --size=20G # create new namespace `/dev/pmem0.1` on region0 for NOVA (optional) sudo ndctl create-namespace --region=region0 --size=20G # list all namespaces ndctl list --region=0 --namespaces --human --idle
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Use
/dev/pmem0to mount ext4-DAX at/mnt/pmem0-ext4-dax# create filesystem sudo mkfs.ext4 /dev/pmem0 # create mount point sudo mkdir -p /mnt/pmem0-ext4-dax # mount filesystem sudo mount -o dax /dev/pmem0 /mnt/pmem0-ext4-dax # make the mount point writable sudo chmod a+w /mnt/pmem0-ext4-dax # check mount status mount -v | grep /mnt/pmem0-ext4-dax
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Use
/dev/pmem0.1to mount NOVA at/mnt/pmem0-nova(optional)# load NOVA module sudo modprobe nova # create mount point sudo mkdir -p /mnt/pmem0-nova # mount filesystem sudo mount -t NOVA -o init -o data_cow /dev/pmem0.1 /mnt/pmem0-nova # make the mount point writable sudo chmod a+w /mnt/pmem0-nova # check mount status mount -v | grep /mnt/pmem0-nova
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To unmount the filesystems, run
sudo umount /mnt/pmem0-ext4-dax sudo umount /mnt/pmem0-nova
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Build the MadFS shared library
make BUILD_TARGETS="madfs" -
Run your program with MadFS
LD_PRELOAD=./build-release/libmadfs.so ./your_program
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Build
# usage: make [build_type] # [CMAKE_ARGS="-DKEY1=VAL1 -DKEY2=VAL2 ..."] # [BUILD_TARGETS="target1 target2 ..."] # [BUILD_ARGS="..."] # build the MadFS shared library and tests make
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