RFR: 8219149: ProcessTools.ProcessBuilder should print timing info for subprocesses

[Kim Barrett]

> On May 31, 2019, at 2:19 AM, David Holmes <david.holmes at oracle.com> wrote:
> 
> Hi Kim,
> 
> This seems reasonable to me.
> 
> Thanks,
> David

Thanks.

> 
> On 31/05/2019 7:04 am, Kim Barrett wrote:
>>> On May 30, 2019, at 3:58 PM, Roger Riggs <Roger.Riggs at oracle.com> wrote:
>>> 
>>> Hi Kim,
>>> 
>>> To ensure you see some messages in the case of timeouts, it would be
>>> useful to call System.out.flush() after printing the message in logProcess().
>> Good idea; added.
>> full: http://cr.openjdk.java.net/~kbarrett/8219149/open.01/
>> incr: http://cr.openjdk.java.net/~kbarrett/8219149/open.01.inc/
>>> I'm ok with the timestamps, as is, though the Duration might be useful in
>>> some cases.
>> As I discussed with Roger, I want to keep the change simple for now,
>> as we're not yet sure where to expend effort looking deeper.  I think
>> comparing timestamps in just a few cases will tell us a lot (possibly
>> that we're looking in entirely the wrong place, in which case we might
>> just undo this change).