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Some tracepoints have already been removed

Some tracepoints have already been removed

Posted May 24, 2012 16:53 UTC (Thu) by Anssi (subscriber, #52242)
Parent article: Removing four bytes from the kernel ABI

> Right now, much of the work is in adding new tracepoints, but some day one or more of those may need to come out or be modified.

Actually some tracepoints have already been removed, at least in this i915 commit from Feb 2011:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-...

e.g. i915_gem_request_submit was removed (in favor of a more generic tracepoint), and it was used by PowerTop to determine GPU ops/s. PowerTop got patched for that in December.


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