Re: futex - Mailing list pgsql-hackers

From Neil Conway
Subject Re: futex
Date
Msg-id 412D1214.2050902@samurai.com
Whole thread Raw
In response to Re: futex  (Josh Berkus <josh@agliodbs.com>)
Responses Re: futex  (Josh Berkus <josh@agliodbs.com>)
List pgsql-hackers
Josh Berkus wrote:
> I'll have to admit to having only a beginner's grasp of this stuff, but I do 
> believe that that was what the OSDL patch did.   Jan also tried a simpler 
> patch, which didn't work either.    Both Jan and Tom have expressed the 
> opinion that the only solution is to make the BufrMgrLock more granular (as 
> in, not monolithic) but this is a huge task.

It's worth noting that I did a lot of work toward that goal (making the 
BufMgrLock more granular) earlier in 2004, but unfortunately wasn't able 
to get it finished before leaving for the summer. I can't guarantee that 
the approach I took was the right one, but if anyone's interested in 
working on this area then it might save some time to start with previous 
work. I want to take another shot at doing this for 8.1, although I 
don't know right now if I'll be able to.

-Neil



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