| Date | Tue, 3 Oct 2017 16:42:22 +0200 | From | Peter Zijlstra <> | Subject | Re: [RFC PATCH 08/17] perf: Allow inheritance for detached events |
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On Tue, Sep 05, 2017 at 04:30:17PM +0300, Alexander Shishkin wrote: > This enables inheritance for detached events. Unlike traditional events, > these do not have parents: inheritance produces a new independent event > with the same attribute. If the 'parent' event has a ring buffer, so will > the new event. Considering the mlock accounting, this buffer allocation > may fail, which in turn will fail the parent's fork, something to be > aware of. > > This also effectively disables context cloning, because unlike the > traditional events, these will each have its own ring buffer and > context switch optimization can't work.
Right, so this thing is icky... as you know. More naming issues though, what will you go and call those files.
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