Re: Write ahead logging - Mailing list pgsql-performance

From Mario Weilguni
Subject Re: Write ahead logging
Date
Msg-id 000b01c2d8c2$54008350$8f01c00a@icomedias.com
Whole thread Raw
In response to Write ahead logging  (Matthias Meixner <meixner@dvs1.informatik.tu-darmstadt.de>)
Responses Re: Write ahead logging
List pgsql-performance
> >So the question is: has anybody verified, that the log is written to disk
> >before returning from commit?
>
> Some (or all?) IDE disks are known to lie:  they report success as
> soon as the data have reached the drive's RAM.

under linux, hdparm -W can turn off the write cache of IDE disk, maybe you
should try with write-caching turned off.

best regards,
    mario weilguni



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