Re: [PATCH] RAS: Add a tracepoint for reporting memory controllerevents

From: Borislav Petkov
Date: Thu May 31 2012 - 16:17:55 EST


On Thu, May 31, 2012 at 04:11:32PM -0400, Steven Rostedt wrote:
> Sure, but how noisy is EDAC? Does it actually fill up the ring
> buffers?

It could be very quiet (i.e., machine runs with no errors) and it could
have bursts where it reports a large number of errors back-to-back
depending on access patterns, DIMM health, temperature, sea level and at
least a bunch more factors.

So I can imagine buffers filling up suddenly and fast, and userspace
having hard time consuming them in a timely manner.

Every byte counts in such cases.


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