On Fri, Nov 19, 2010 at 4:39 PM, Andriy Gapon <a...@freebsd.org> wrote: > > I am thinking about providing two APIs for this. > > 1. KPI > void cpu_get_a_m_perf(u_int cpu, uint64_t *aperf, uint64_t *mperf); > > 2. Userland > sysctl dev.cpu.N.aperf_mperf that returns two UQUAD values. > > But I am not sure where to put the code for both APIs. > Adding another device under cpu seems like an overkill. > > Ideas? > Thanks!
No comment on where to put it, but one other detail: Since these are measures since last reset, you probably want a similar "cpu_zero_a_m_perf" call. As for how that interacts with the sysctl, uhm ... maybe also offering a time-since-last-reset could be useful? -- Daniel Nebdal _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
