Thomas Munro 2dbe890571 Support direct I/O on macOS. ...

Macs don't understand O_DIRECT, but they can disable caching with a
separate fcntl() call.  Extend the file opening functions in fd.c to
handle this for us if the caller passes in PG_O_DIRECT.

For now, this affects only WAL data and even then only if you set:

  max_wal_senders=0
  wal_level=minimal

This is not expected to be very useful on its own, but later proposed
patches will make greater use of direct I/O, and it'll be useful for
testing if developers on Macs can see the effects.

Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA%2BhUKG%2BADiyyHe0cun2wfT%2BSVnFVqNYPxoO6J9zcZkVO7%2BNGig%40mail.gmail.com

2021-07-19 11:01:01 +12:00

..

po

Translation updates

2021-06-21 12:33:50 +02:00

t

Add a copyright notice to perl files lacking one.

2021-05-07 10:56:14 -04:00

.gitignore

Improve range checks of options for pg_test_fsync and pg_test_timing

2020-09-28 10:13:59 +09:00

Makefile

Clean up after newly-added tests for pg_test_fsync and pg_test_timing.

2020-10-07 13:27:33 -04:00

nls.mk

Translation updates

2021-05-17 14:30:27 +02:00

pg_test_fsync.c

Support direct I/O on macOS.

2021-07-19 11:01:01 +12:00