Re: sort: Parallel merging

[Chen Guo]

Hi Shaun


> Comparing the structs requires comparing the actual lines, right? Don't
> we want the actual lines in cache?

HA that's right. How stupid of me.

> I don't know either, but once I get your parallel merging patch running,
> I'll do some benchmarks. Anybody know the magic incantation to lock a
> particular process onto a particular CPU, preventing any other processes
> from running on that CPU?

It's Glen's patch, not mine. As for processes... a quick google search returns
lockpid, but not sure that's what we want, since we want threads to run
on different CPUs; but all the threads we create would have the same PID. You
might have to change all the pthread_create calls to forks in Glen's patch.