Re: NetBSD TILE-Gx SMP

[Reinoud Zandijk <reinoud%NetBSD.org@localhost>]

Hi Toru,

On Sun, Mar 03, 2013 at 03:10:17PM +0900, toru nishimura wrote:
> The team in Sanctum Networks has been continuing the effort
> on SMP capability of NetBSD port for TILE-Gx processor for
> months.  Here is a screenshot of day.
> # (run some commands)
> # stty rows 47; top -s 1
> load averages:  0.81,  0.21,  0.08;               up 0+00:02:03        
> 05:57:45
> 6 processes: 1 runnable, 3 sleeping, 2 on CPU
> CPU00 states: 42.0% user,  0.0% nice,  1.8% system,  0.0% interrupt, 56.2% 
> idle
> CPU01 states:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% 
> idle
...
> CPU35 states:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% 
> idle
> Memory: 56M Act, 4160K Exec, 42M File, 16G Free

Nice :) good work!i

I was first puzzled by the cpu00 cpu-usage but then in the ps i saw that you
were tar'ing with gz, and that explained it ;)


What is the current status? Have you made progress since this posting? Do you
take the physical connectivity into account when sheduling? Or are you using
processor affinity as much as possible?

I did read somewhere that the individual CPUs lack floating-point hardware, is
that true? How much would that effectively hurt general purpose applications?

With regards and keep on hacking!
Reinoud