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Advances, Systems and Applications

Table 4 The processing times (ms) of read/write operations (50/50 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 - 36 18 19 - 19 - 13
server /          
root CPU - 62 25 27 - 33 - 19
replica          
Secondary Disc 14 28 18 19 17 22 7.2 13
replica          
servers CPU 6 13 19 20 11 14 2 10
Average Primary - 49 21.5 23 - 26 - 16
operation replica:         
processing Avg 49 44.5 26 16
time(ms) (Disc+CPU)         
  Secondary 10 20.5 31.5 3.7 14 18 4.6 11.5
  servers:         
  Avg 30.5 35.2 32 16.1
  (Disc+CPU)