Re: True ACID under linux (no fsync)?

Strange.

I did a test on Redhat Linux 7.0 with fsync() turned off and my
batchfile of inserts ran 10 times as fast. But that was on an slow PC
with a slow IDE harddrive.

What Linux distribution and kernel version are you running?

Poul L. Christiansen

"Gary Howland (During daytime)" wrote:
>
> Hi,
>
> Just a quickie - I heard that linux does not have a working fsync() call
> (it has no concept of raw devices). In other words, fsync cannot be used
> to ensure that data is on disk (try it with a floppy - it returns IMMEDIATELY!!! - long before the write finishes)
>
> This is for ALL linuxes.
>
> Does this mean that postgres is unrealiable (or non ACID-conforming) under linux?
>
> Gary
>
> --
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>
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