RFR(S) 8212127: Cleanup TLAB fast refill statistics, perf counters and etc.

[David Holmes]

On 2/02/2019 4:27 am, zgu at redhat.com wrote:
> After FastTLABRefill was removed, let's cleanup related perf counters.
> I removed perf counters for fast refill, and renamed perf counters for
> slow refill.
> 
> I am not all clear what implication of renaming/removing exported
> symbols, and have no idea what aliasmap is for. So I ran all tests I
> think could be affected, showed no problem.

Will need to check how perfcounters may be accessed before removing 
them. I don't know if external tools may access them as jvmstat does.

David
-----

> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8212127
> Webrev: http://cr.openjdk.java.net/~zgu/JDK-8212127/webrev.00/
> 
> Test:
>    hotspot_runtime, hotspot_serviceability, vmTestbase_nsk_monitoring,
>    vmTestbase_nsk_jdi, vmTestbase_nsk_jvmti, vmTestbase_vm_jdwp
>    on Linux x64
> 
>    Eyeball output of jsnap
> 
> Thanks,
> 
> -Zhengyu
>