[GHC] #14864: Suggestion: Turn on +RTS -xt by default

[GHC]

#14864: Suggestion: Turn on +RTS -xt by default
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           Reporter:  ryantrinkle    |             Owner:  (none)
               Type:  feature        |            Status:  new
  request                            |
           Priority:  low            |         Milestone:
          Component:  Runtime        |           Version:  8.2.2
  System                             |
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 I found it quite surprising and difficult to debug that my heap profile
 showed no leak while the GC stats showed a clear leak.  As a user who is
 somewhat familiar with this stuff, I was quite surprised that those two
 data sources didn't agree.  I wasn't sure how to determine why they
 disagreed, since none of the output referenced anything interesting.

 I'm not familiar with the reasoning behind disabling -xt by default, but I
 think it may be easier for users to figure out that they need to *disable*
 it (since they'll be able to see its results in the heap profile) than to
 figure out that they need to *enable* it.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14864>
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