No. On the openjdk list Mandy said that walking the Throwable as we are doing 
should be faster due to improvements made in JDK-8150778.

Ralph

> On May 10, 2016, at 9:21 AM, Paul Benedict <[email protected]> wrote:
> 
> Are you using the new JDK 9 APIs to walk the stack?
> 
> Cheers,
> Paul
> 
> On Tue, May 10, 2016 at 11:20 AM, Ralph Goers <[email protected] 
> <mailto:[email protected]>> wrote:
> Supposedly Java 9 was supposed to improve the performance of walking the 
> stack trace. However, the numbers I get below indicate to me that they are 
> moving in the opposite direction.  Am I misreading this?
> 
> Ralph
> 
> 
> 
> java version "1.7.0_80
> 
> Benchmark                                                             Mode  
> Samples       Score      Error  Units
> o.a.l.l.p.j.AsyncAppenderLog4j2LocationBenchmark.throughputSimple    thrpt    
>    20  124819.285 ± 3003.918  ops/s
> 
> java version "1.8.0_65"
> 
> Benchmark                                                             Mode  
> Samples       Score      Error  Units
> o.a.l.l.p.j.AsyncAppenderLog4j2LocationBenchmark.throughputSimple    thrpt    
>    20  123209.746 ± 3064.672  ops/s
> 
> 
> java version "9-ea"
> Java(TM) SE Runtime Environment (build 9-ea+116)
> 
> Benchmark                                                             Mode  
> Samples      Score      Error  Units
> o.a.l.l.p.j.AsyncAppenderLog4j2LocationBenchmark.throughputSimple    thrpt    
>    20  96090.261 ± 4565.763  ops/s
> 

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