On Mon, Apr 23, 2018 at 10:54:18PM -0700, David Rientjes wrote: > On Sat, 21 Apr 2018, Alexey Dobriyan wrote: > > > > On Thu, Apr 19, 2018 at 04:23:02PM -0700, Joel Fernandes (Google) wrote: > > > > Can we not just remove per-IRQ stats from /proc/stat (since I gather > > > > from this discussion it isn't scalable), and just have applications > > > > that need per-IRQ stats use /proc/interrupts ? > > > > > > If you can prove noone is using them in /proc/stat... > > > > And you can't even stick WARN into /proc/stat to find out. > > > > FWIW, removing per irq counts from /proc/stat would break some of our > scripts. We could adapt to that, but everybody else would have to as > well, so I'm afraid it's not going to be possible.
Excellent! > It would probably be better to extract out the stats that you're actually > interested in to a new file. This is the worst scenario. Individual IRQ stats are going to live in 2 places. And /proc/stat still would be slow.
