RFR 8197518: Kerberos krb5 authentication: AuthList's put method leads to performance issue

[Seán Coffey]

This looks good to me Max. I think it'll solve the issue reported.

line 109 : I guess this could turn negative if timeLimit was value < 60. 
I don't think that's possible unless we're dealing with a strange config!

For the code comment, may a minor edit :

  111         // Only trigger a cleanup when very old entries exist
  112         // (lifespan + 1 min ago). This ensures a cleanup is done
  113         // at most every minute.

Regards,
Sean.

On 22/02/18 08:36, Weijun Wang wrote:
> Please take a review at
>
>     http://cr.openjdk.java.net/~weijun/8197518/webrev.00/
>
> Two notes:
>
> 1. I tried list.subList(here, end).clear() but it's not faster.
>
> 2. I have looked at ConcurrentHashMap + ConcurrentSkipListMap but will need more time to verify its correctness and measure the performance gain. Since the bug is reported on 8u, a safer fix looks better.
>
> Noreg-perf.
>
> Thanks
> Max
>