'no assembly is recorded'

[Сергей Цыпанов]

Now I see it,

for some reason I thought assembly would be printed out regardless where it comes from (even from VM's native code).

Thank you for detailed explanation!

15.01.2019, 22:57, "Aleksey Shipilev" <shade at redhat.com>:
> On 1/15/19 9:52 PM, Сергей Цыпанов wrote:
>>  Thanks for explanation! And why there's no assembly print-out on C1 level as I see it on C2? Even
>>  if Array.newInstance is calling into VM right away there eventually should be assembly on the
>>  lowest level.
>
> I don't understand the question. In c1.txt, the hottest block is this:
>
> ....[Hottest Region 1]..............................................................................
> libjvm.so, InstanceKlass::allocate_objArray (221 bytes)
>
>  <no assembly is recorded, native region>
> ....................................................................................................
>  17,03% <total for region 1>
>
> It has no assembly, because it is VM native code.
>
> The first "c1, level 1" entry is:
>
>   1,67% c1, level 1
> com.luxoft.logeek.benchmark.array.generated.ArrayInstantiationBenchmark_newInstance_jmhTest::newInstance_avgt_jmhStub,
> version 769 (85 bytes)
>
> ...which is too cold to be shown, as the line above suggests:
>
> "Hottest code regions (>10,00% "cycles" events)".
>
> Drop hotThreshold if you want to see that 1.67% disassembled, but it would not matter much for
> performance.
>
> -Aleksey