Re: slowdown 2.0.35 vs 2.1.121 (pre 1)

Claude Gamache (cgamache@cae.ca)
15 Sep 1998 12:09:39 -0400


Andrea Arcangeli <andrea@e-mind.com> writes:

> Could you try this patch against your latest proggy?
>
> --- /home/andrea/devel/suck-cpu2.c Thu Sep 10 20:44:48 1998
> +++ suck-cpu2.c Tue Sep 15 14:53:42 1998
> @@ -260,6 +260,7 @@
> */
>
> action.sa_handler = (void (*)(int))interrupt_routine;
> + action.sa_flags = SA_RESTART;
> timer.it_interval.tv_usec = (long int) (period*1000000.0);
> timer.it_interval.tv_sec = 0;
> timer.it_value.tv_usec = (long int) (period*1000000.0);

I tried it, but it did not change the results unfortunately. I just
ran the test (prog1) with kernel 2.1.120 with you patch profiling
patch. So I have a few traces: one with the "unaltered" system and 3
with the "altered" system.

Do you want me to email you directly the results or put them
somewhere ?

Regards,

Claude

P.S.: your patch works well with 2.1.120 SMP.

-- 
  Claude Gamache, CAE Electronique Ltee, 8585 Cote-de-Liesse  
  Saint-Laurent,  Quebec, Canada H4T 1G6                        
  Email: cgamache@cae.ca  Tel.: (514) 341-2000 x3194

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/