Prevayler Serialization Optimization

Prevayler Serialization Optimization

I'm working with Prevayler, doing some very simple stress testing.
On my program, I can get 10,000 reads in 500ms, but writing or changing
one object takes 23ms. (I don't have detailed specs on this computer.
Nothing impressive. Dual core 3.0ghz, 7200rpm HD, and likely 1333mhz ddr3
memory.)
Serialization seems to be the bottleneck.
What can be done to increase write/change performance?
---- Main Method ----
Transactor trans = new Transactor();
for(int i =0;i<10000;i++)
{
trans.createUser("Username", "PasswordHash");
}
---- Transactor Class ----
public void createUser(String Username, String PasswordHash) {
String id = Helper.randomID();
//Avoids id collisions, id is 7 digit base58. (Like Bitcoin, but
shorter.)
//ID generation takes 2ms.
while(getUser(id)!=null)
{
id=Helper.randomID();
}
prevayler.execute(new CreateUser(Username, PasswordHash,id));
}
---- CreateUser Class ----
public class CreateUser implements Transaction, Serializable{
String Username;
String PasswordHash;
String id;
public CreateUser(String Username, String PasswordHash, String id)
{
this.Username = Username;
this.PasswordHash = PasswordHash;
this.id = id;
}
public void executeOn(Object core,Date date) {
((Core)core).store(new User(Username, PasswordHash), id);
}
}
---- Core Class (Store method) ----
private final Map<String,Object> dataMap = new HashMap<String,Object>();
public void store(Object object, String id) {
dataMap.put(id, object);
//Adds User id to a seperate ArrayList<String>
if(object instanceof User )
{
userList.add(id);
}
}