Messages in this thread | | | Date | 27 Apr 2007 19:02:30 +0200 | Date | Fri, 27 Apr 2007 19:02:30 +0200 | From | Andi Kleen <> | Subject | Re: [PATCH] x86_64: dynamic MCE poll interval |
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On Fri, Apr 27, 2007 at 09:58:14AM -0700, Tim Hockin wrote: > On 27 Apr 2007 11:09:17 +0200, Andi Kleen <ak@muc.de> wrote: > >On Thu, Apr 26, 2007 at 06:02:52PM -0700, Tim Hockin wrote: > >> Description: > >> This patch makes the MCE poller adjust the polling interval dynamically. > >> If we find an MCE, poll 2x faster (down to 10 ms). When we stop finding > >> MCEs, poll 2x slower (up to check_interval seconds). The check_interval > >> tunable becomes the max polling interval. > > > >Can you please fix the documentation then? > > Which documentation, specifically? :)
Documentation/x86_64/{boot-options.txt,machinecheck}
> > >> Result: > >> If you start to take a lot of correctable errors (not exceptions), you > >> log them faster and more accurately (less chance of overflowing the MCA > >> registers). If you don't take a lot of errors, you will see no change. > > > >Makes sense. > > > >AMD RevF can do this using the threshold interrupts too for DIMM errors > >too without any delays -- perhaps it would also make sense to configure > >this by default that it always triggers on all DIMM errors. > >Right now it is just an option in /sys > > Can I look at this as a followon patch? I have a number of mce
Sure.
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