Subject | RE: [IB-Architect] Forced Write Performance |
---|---|
Author | Jim Starkey |
Post date | 2003-02-09T22:00:20Z |
At 04:48 PM 2/9/2003 -0500, Leyne, Sean wrote:
mutex during I/O, allowing another thread the run. In SuperServer,
there's probably a thread waiting. In Classic, probably not.
I fundamentally don't believe in performance predictions by
analysis -- there are usually enough complications and interactions
that big surprises are common. I've always favored the "code
the sucker and measure it" approach.
Jim Starkey
>Jim,If I remember correctly, the engine "releases" the de facto
>
>> If this is indeed the case, a simple dedicated page write thread
>> may give a performance boost when forced write is enabled.
>
>Do you think this would benefit both SuperServer and Classic engines?
>
>(I think more likely SuperServer -- watch I'll be wrong)
>
mutex during I/O, allowing another thread the run. In SuperServer,
there's probably a thread waiting. In Classic, probably not.
I fundamentally don't believe in performance predictions by
analysis -- there are usually enough complications and interactions
that big surprises are common. I've always favored the "code
the sucker and measure it" approach.
Jim Starkey