Conclusions
- ROOT I/O was modified and automatic schema evolution implemented. It is in testing stage now. Performance:
- Size of file the same as in standard ROOT;
- If schema evolution off:
- Writing is the same speed as standard ROOT;
- Reading is 30% faster than standard ROOT;
- If schema evolution on:
- The same speed as standard ROOT.
Current status:
- Codes of modified ROOT I/O and automatic schema evolution are ready and are debugged now.