On 12/05/2013 04:14 PM, Andi Kleen wrote:
>
> In my experience there are roughly two groups of trace users:
> kernel hackers and users. The kernel hackers want something
> convenient and fast, but for anything complicated or performance
> critical they can always hack the kernel to include custom
> instrumentation.
>
Not to mention that in that case we might as well -- since we need a
compiler anyway -- generate the machine code in user space; the JIT
solution really only is useful if it can provide something that we can't
do otherwise, e.g. enable it in secure boot environments.
-hpa
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