The goal of sider is to build a redis-like kv store that scales using nvme ssd while maintaining similar speeds.

int
main(int argc, char **argv) {
    start_db(argc, argv)([](){
        return forever()
            >> flat_map(wait_connection)
            >> concurrent()
            >> flat_map([](int fd){
                return start_on(random_core())
                    >> until_session_closed(make_session(fd))(
                        read_cmd()
                            >> concurrent() >> pick_cmd() >> execute()
                            >> sequential() >> send_res()
                    );
            })
            >> reduce();
    });
    return 0;
}

sider has developed its own framework called "pump" to handle asynchronous and concurrent logic. This is an implementation of c++ std::execution(p2300).

• For learn more about p2300, see here;
• For a standard implementation of the p2300, see here.

sider uses spdk to implement kernel bypass technology, taking full advantage of nvme's concurrency to speed up io.

• For learn more about spdk, see here;
• In the function apply you can see how to combine asynchronous and concurrent tasks using the operators provided by pump.

• basic std::execution framework
• spdk-based io
• basic kv functions (get,put,scan)
• ycsb test and iops reaches hardware limit.
• batch
• io_uring-based network
• cuda support
• cold and hot data separation

Looking for job opportunities in c++ or database development (beijing or remote)