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copied from https://github.com/snalli/nstore

License: BSD 3-Clause "New" or "Revised" License

Makefile 0.36% Shell 0.14% M4 5.61% Python 10.25% C++ 66.27% C 17.14% Objective-C 0.15% Awk 0.07%

nstore's Introduction

N-Store

An efficient database system designed for non-volatile memory (NVM).

For details, please read the original paper-

####Let's Talk About Storage & Recovery Methods for Non-Volatile Memory Database Systems.

Joy Arulraj, Andrew Pavlo, and Subramanya R. Dulloor. 2015.
In Proceedings of the 2015 ACM SIGMOD International Conference on Management of Data (SIGMOD '15)

Dependencies:

g++ 4.7+
autoconf (apt-get install autoconf libtool)

To build:

    $./bootstrap
    $./configure
    
    $ cd src/
    $./build
    $ ./run -h                                  [For help]

To run :

    $ cd src/
    $ ./run --small --ycsb                      [can pass --med or --large for bigger workloads]
    $ ./run --small --tpcc                      [can pass --med or --large for bigger workloads]

Nstore will create a persistent heap in /dev/shm defined by the macro PERSISTENT_HEAP. Ensure that you have at least 1.00 GB of space for the heap.

To collect the trace of accesses to NVM, make sure you have debugfs mounted in Linux.

To run with tracing enabled :

    $ mount | grep debugfs
    debugfs on /sys/kernel/debug type debugfs (rw,relatime)
    
    $ sudo cd /sys/kernel/debug
    $ sudo echo 128000 > buffer_size_kb         [128MB. Allocate enough buffer to hold traces]
    $ cat trace_pipe                            [Redirect output of pipe to any file for storage]
    
    Go back to nstore/:
    
    $ cd src/
    $ sudo ./run --small --ycsb --trace         [Need to be root to collect trace]

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