Messages in this thread | | | Date | Sun, 19 Oct 2008 15:37:49 +0200 | From | Pavel Machek <> | Subject | Re: [patch 23/24] perfmon3: kernel documentation |
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Hi!
> + * int pfm_create(int flags, pfarg_sinfo_t *s); > + > + This function creates a perfmon per-thread session. > + The flags parameter is currently unused and must be set to 0. > + > + Upon return and if s is not NULL, the kernel return the list > of available
returns?
> + PMC and PMD registers. Tools should not assume, they have access to the > + entire PMU, it may be shared with other kernel subsystems, e.g., on X86 > + the NMI watchdog timer.
How can kernel return anything?
Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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