RFR(XS): 8204136: jtreg: Fix failing RTM test RTMSpinLoopCount

[Gustavo Romero]

Hi Igor,

On 05/31/2018 12:37 AM, Igor Ignatyev wrote:
> Hi Gustavo,
> 
> the fix looks reasonable to me.

Thanks a lot for reviewing it.

I think I still need one additional review for that change?


Best regards,
Gustavo

> Thanks,
> -- Igor
> 
>> On May 30, 2018, at 7:05 PM, Gustavo Romero <gromero at linux.vnet.ibm.com> wrote:
>>
>> Hi,
>>
>> Could the following change be reviewed please?
>>
>> webrev: http://cr.openjdk.java.net/~gromero/8204136/v1
>> bug   : https://bugs.openjdk.java.net/browse/JDK-8204136
>>
>> It throttles down RTMSpinLoopCount deltas in TestRTMSpinLoopCount to avoid
>> a test timeout. Using current RTMSpinLoopCount values mostly makes the last
>> tries fail (RTMSpinLoopCount = 1_000_000 or 10_000_000). The proposed
>> increment is to make the next RTMSpinLoopCount value 10x greater than the
>> previous one.
>>
>> Currently RTMSpinLoopCount can fail (error) sometimes due to timeout.
>> (Please see: http://cr.openjdk.java.net/~gromero/misc/moog_spincountloop_timeout.log)
>>
>> The JVM behavior seems correct and indeed high RTMSpinLoopCount values
>> like 10_000_000 should take a long time to complete (> 2 minutes).
>>
>> Thank you.
>>
>>
>> Best regards,
>> Gustavo
>>
>