Re: [Firebird-devel] overload system CPU

[Aleksey K. <kar...@cm...>]

"Dmitry Yemanov" <fir...@ya...> wrote in message 
news:f00866$28r$1...@ne......
>
> I have solved (locally so far) the performance issue in the "old version
> without fast mutex", so that CS version performs your test well.
> However, the new mutex code is still terribly slow. I can reproduce that
> and we're already investigating the reasons.
>
> Both fixes will be committed together, hopefully soon.

The new "fast mutex" code is incorrect and contains a race condition that
leads to server's freezes. You could just use the original code from Yaffil,
probably, adjusting thread prioritiy related code. Or, better, remove 
priority
management all together.

Regards,
Aleksey Karyakin