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Advances, Systems and Applications

Table 2 The processing times (ms) of read/write operations (70/30 R/W ratio) for standard approaches (Classic, Quorum, TBC) and proposed advanced R-TBC/RTA approach for maintaining the consistency of the cloud DBMS

From: Advanced consistency management of highly-distributed transactional database in a hybrid cloud environment using novel R-TBC/RTA approach

   Classic approach Quorum approach TBC approach R-TBC/RTA approach
   Read Write Read Write Read Write Read Write
Primary Disc - 31 16 17 - 16 - 11
server /          
root CPU - 55 23 25 - 30 - 16
replica          
Secondary Disc 15 21 16 17 18 19 9.3 9.6
replica          
servers CPU 7 8 16 18 12 11 4 6.1
Average Primary - 25.8 27.3 12.6 - 13.8 - 8.1
operation replica:         
processing Avg 25.8 39.9 13.8 8.1
time(ms) (Disc+CPU)         
  Secondary 15.4 8.7 22.4 10.5 21 9 9.3 4.7
  servers:         
  Avg 24.1 32.9 30 14
  (Disc+CPU)