Re: O_DSYNC broken on MacOS X? - Mailing list pgsql-hackers

From Robert Haas
Subject Re: O_DSYNC broken on MacOS X?
Date
Msg-id AANLkTinWqHizwf=s+rQWptGsD+tP6YPiuMvLqGvNPCoH@mail.gmail.com
Whole thread Raw
In response to Re: O_DSYNC broken on MacOS X?  (Bruce Momjian <bruce@momjian.us>)
Responses Re: O_DSYNC broken on MacOS X?
List pgsql-hackers
On Tue, Oct 19, 2010 at 11:06 AM, Bruce Momjian <bruce@momjian.us> wrote:
> Robert Haas wrote:
>> On Thu, Oct 7, 2010 at 11:52 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> > Robert Haas <robertmhaas@gmail.com> writes:
>> >> Proposed doc patch attached.
>> >
>> > "discusesed"? ?Otherwise +1
>>
>> Woops, thanks.  Committed with that change.  I back-patched it back to
>> 8.3, which is as far as it applied with only minor conflicts.
>
> I have applied the attached patch which mentions tools/fsync for testing
> fsync method performance, and clarified the new paragraph about sync
> methods.
>
> I am glad to see we are beefing up this area of the docs.

It seems we're still missing some relevant details, because hdparm
doesn't seem to work on SCSI devices.  Is sdparm the right utility in
that case?  Does anyone know what the correct incantations look like?

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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