(2012/08/22 22:41), Steven Rostedt wrote: > On Wed, 2012-08-22 at 17:43 +0900, Yoshihiro YUNOMAE wrote: >> From: Masami Hiramatsu <masami.hiramatsu...@hitachi.com> >> >> Count debugfs/tracing/per_cpu/cpu* to determine the >> number of CPUs. > > I'm curious, do you find that sysconf doesn't return the # of CPUs the > system has?
No, sysconf returns the number of hosts CPUs, not guests. > I've had boxes where the per_cpu/cpu* had more cpus than the > box actually holds. But this was a bug in the kernel, not the tool. This > change log needs to have rational instead of just explaining what the > patch does. Ah, I see. Hmm, then this should be enabled by a command line option or an environment variable. Thank you, -- Masami HIRAMATSU Software Platform Research Dept. Linux Technology Center Hitachi, Ltd., Yokohama Research Laboratory E-mail: masami.hiramatsu...@hitachi.com
