3 ms·
The reason is the performance penalty for barriers On + disk cache On was much higher than for barriers Off + Disk Cache off, at least that is how it looked lik
by kustodian 11y ago
The reason is the performance penalty for barriers On + disk cache On was much higher than for barriers Off + Disk Cache off, at least that is how it looked like on our testing system. Of course that could be do to the fact that we are using a RAID controller which has a 1GB of cache. If you are not using RAID, "On On" would be a valid test.