[GHC] #12437: 20% regression in max_bytes_used for T1969

[GHC]

#12437: 20% regression in max_bytes_used for T1969
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        Reporter:  simonmar          |                Owner:  osa1
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Ömer Sinan Ağacan <omeragacan@…>):

 In [changeset:"773e3aadac4bbee9a0173ebc90ffdc9458a2a3a9/ghc"
 773e3aad/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="773e3aadac4bbee9a0173ebc90ffdc9458a2a3a9"
 T1969: Enable it again but bump the max residency temporarily

 T1969 was broken by 714beb (which actually reduced allocations but
 residency was increased). Instead of disabling it completely, just bump
 the number a little bit to avoid making things even worse in the
 meantime. See also #12437.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12437#comment:11>
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