12 RFR(S) 8215205: javaVFrame much slower than vframeStream

[dean.long at oracle.com]

Thanks Tobias.  I will fix the typo.

dl

On 12/18/18 2:59 AM, Tobias Hartmann wrote:
> Hi Dean,
>
> looks good to me.
>
> There is a typo in vframe_hp.hpp:76 "vframd_id" -> "vframe_id".
>
> Best regards,
> Tobias
>
> On 17.12.18 23:40, dean.long at oracle.com wrote:
>> https://bugs.openjdk.java.net/browse/JDK-8215205
>> http://cr.openjdk.java.net/~dlong/8215205/webrev
>>
>> This change allows a stackwalk to continue using the faster vframeStream iterator, but changing to a
>> javaVFrame lazily as needed.  It introduces a new API
>>
>>    javaVFrame* vframeStreamCommon::asJavaVFrame()
>>
>>
>> The first user of this API will be JDK-8214329, which is why this issue is a P3.
>>
>> dl