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0 pointsPaulDavisThe1st8mo ago0 comments

Chance of Postgres commit mapping 1:1 onto posix fsync or equivalent: slim.

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Without parallelism, each commit will be at least one fdatasync (or fsync, O_SYNC/O_DSYNC write, depending on configuration). With parallelism, concurrent transaction might be flushed together, reducing the total number of fsyncs.

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0 pointsPaulDavisThe1st8mo ago0 comments

Chance of Postgres commit mapping 1:1 onto posix fsync or equivalent: slim.

0 comments

anarazel8mo ago

Without parallelism, each commit will be at least one fdatasync (or fsync, O_SYNC/O_DSYNC write, depending on configuration). With parallelism, concurrent transaction might be flushed together, reducing the total number of fsyncs.

j / k navigate · click thread line to collapse