Messages in this thread | | | Subject | Re: [RFC PATCH] perf, bpf: Retain kernel executable code in memory to aid Intel PT tracing | From | Adrian Hunter <> | Date | Mon, 11 Feb 2019 10:24:35 +0200 |
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On 11/02/19 10:18 AM, Alexei Starovoitov wrote: > On Mon, Feb 11, 2019 at 09:54:01AM +0200, Adrian Hunter wrote: >> >> Which is not really a real use-case. > .. >>> perf analysis with PT becomes inaccurate and main goal >>> of retaining accurate instruction info is not achieved. >> >> For the majority of real use-cases, yes it is. > > In our fleet not a single server is using Intel PT, yet you're > proposing to penalize all of them with shrinker-based JIT freeing?
I already responded to that.
> There is no negotiation here.
Apart from Peter and Ingo already having indicated a different approach is preferred, why not? Shouldn't maintainers provide technical reasons.
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