Hi, Francisco,
Francisco Reyes wrote:
> I only wonder what is safer.. using a second or two in commit_delay or
> using fsync = off.. Anyone cares to comment?
It might be that you misunderstood commit_delay. It will not only delay
the disk write, but also block your connnection until the write actually
is performed.
It will rise the throughput in multi-client scenarios, but will also
rise the latency, and it will absolutely bring no speedup in
single-client scenarios.
It does not decrease safety (in opposite to fsync=off), data will be
consistent, and any application that has successfully finished a commit
can be shure their data is on the platters.[1]
HTH,
Markus
[1] As long as the platters don't lie, but that's another subject.
--
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf. | Software Development GIS
Fight against software patents in EU! www.ffii.org www.nosoftwarepatents.org
