> Date: Tue, 16 Sep 2014 21:51:00 +1000
> From: David Gwynne <da...@gwynne.id.au>
>
> if you have more than 8 cpus, combine the cpu lines by default.
>
> ok?
8 seems a reasonable number
ok kettenis@
> Index: machine.c
> ===================================================================
> RCS file: /cvs/src/usr.bin/top/machine.c,v
> retrieving revision 1.78
> diff -u -p -r1.78 machine.c
> --- machine.c 4 Jul 2014 05:58:31 -0000 1.78
> +++ machine.c 16 Sep 2014 11:46:41 -0000
> @@ -141,14 +141,26 @@ int ncpu;
> unsigned int maxslp;
>
> int
> -machine_init(struct statics *statics)
> +getncpu(void)
> {
> + int mib[] = { CTL_HW, HW_NCPU };
> + int ncpu;
> size_t size = sizeof(ncpu);
> - int mib[2], pagesize, cpu;
>
> - mib[0] = CTL_HW;
> - mib[1] = HW_NCPU;
> - if (sysctl(mib, 2, &ncpu, &size, NULL, 0) == -1)
> + if (sysctl(mib, sizeof(mib) / sizeof(mib[0]),
> + &ncpu, &size, NULL, 0) == -1)
> + return (-1);
> +
> + return (ncpu);
> +}
> +
> +int
> +machine_init(struct statics *statics)
> +{
> + int pagesize, cpu;
> +
> + ncpu = getncpu();
> + if (ncpu == -1)
> return (-1);
> cpu_states = calloc(ncpu, CPUSTATES * sizeof(int64_t));
> if (cpu_states == NULL)
> Index: machine.h
> ===================================================================
> RCS file: /cvs/src/usr.bin/top/machine.h,v
> retrieving revision 1.17
> diff -u -p -r1.17 machine.h
> --- machine.h 5 Jun 2012 18:52:53 -0000 1.17
> +++ machine.h 16 Sep 2014 11:46:41 -0000
> @@ -93,3 +93,5 @@ extern char *format_next_process(cadd
> extern uid_t proc_owner(pid_t);
>
> extern struct kinfo_proc *getprocs(int, int, int *);
> +
> +int getncpu(void);
> Index: top.c
> ===================================================================
> RCS file: /cvs/src/usr.bin/top/top.c,v
> retrieving revision 1.81
> diff -u -p -r1.81 top.c
> --- top.c 7 Apr 2014 15:49:22 -0000 1.81
> +++ top.c 16 Sep 2014 11:46:41 -0000
> @@ -250,6 +250,13 @@ parseargs(int ac, char **av)
> }
> }
>
> + i = getncpu();
> + if (i == -1)
> + err(1, NULL);
> +
> + if (i > 8)
> + combine_cpus = 1;
> +
> /* get count of top processes to display (if any) */
> if (optind < ac) {
> if ((topn = atoiwi(av[optind])) == Invalid) {
>
>
