ctFS

ctFS is a file system that Replaces File Indexing with Hardware Memory Translation through Contiguous File Allocation for Persistent Memory.

Code author: Robin Li

Access to the paper and presentation

It's a prototype and meant to prove the concept and demonstrate. I will maintain it and fix bugs progressively. You are welcome to test it and leave me feedback. Any contribution is much appreciated. You are also free to change and reuse the code as you wish.

Requirement

Hardware: Intel Xeon CPU equiped with Intel Optan NVDIMM
Software: Ubuntu 20.04 with all Kernel compile essentials

Tested environment

System: ThinkSystem SR570
CPU: Intel(R) Xeon(R) Silver 4215 CPU @ 2.50GHz
DRAM: 6 x 16GB DDR4 RDIMM
PMEM: 2 x 128GB Intel Optane DCPMM
Kernel: 5.11.0-46-generic
Distribution: Ubuntu Server 20.04 LTS

How to use:

Kernel part source code

Clone the Linux kernel and checkout 5.11.0-46-generic
Copy the files in /script/* to the kernel repo kernel/drivers/dax/

Compile

Compile and install the kernel
Compile ctFS user part (ctU):
```
make
```
Compile mkfs
```
cd test
make mkfs
```
Compile fstest
```
make fstest
cd ..
```

Configure

Reboot to the compiled kernel and configure the PMEM:
```
script/set_nvdimm.sh
```
Format
```
test/mkfs
```

Run

Run with TEST_PROGRAM:
```
script/run_ctfs.sh TEST_PROGRAM
```
Test with fstest:
```
cd test
script/run_ctfs.sh test/fstest -a -p "\\/test"
```
Run with -h to show the help of fstest. The path to ctFS must start with "\", otherwise it will be bypassed to the regular file system.

Contact

Please feel free to reach me: robinlrb.li@mail.utoronto.ca.

zhangsiyan12134/ctFS