[commit: ghc] ghc-8.2: testsuite: Bump margin of T4029 to 15% (298347d)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : ghc-8.2
Link       : http://ghc.haskell.org/trac/ghc/changeset/298347da57c8d2602589c25e853111c37a3c34e8/ghc

>---------------------------------------------------------------

commit 298347da57c8d2602589c25e853111c37a3c34e8
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Wed Mar 15 13:34:48 2017 -0400

    testsuite: Bump margin of T4029 to 15%
    
    This test has been fluctuating wildly recently. Moreover, it's not even clear to
    me that this is a particularly useful thing to be testing.
    
    (cherry picked from commit 899fb8808da875ef191da367de4ff35d079124e1)


>---------------------------------------------------------------

298347da57c8d2602589c25e853111c37a3c34e8
 testsuite/tests/perf/space_leaks/all.T | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/testsuite/tests/perf/space_leaks/all.T b/testsuite/tests/perf/space_leaks/all.T
index 3e37bf7..7c6f564 100644
--- a/testsuite/tests/perf/space_leaks/all.T
+++ b/testsuite/tests/perf/space_leaks/all.T
@@ -71,7 +71,7 @@ test('T4029',
             # 2017-03-03: 65 (amd64/Linux)           Share Typeable KindReps or more
             #                                        lazy interface file reading
       stats_num_field('max_bytes_used',
-          [(wordsize(64), 18208944, 5)]),
+          [(wordsize(64), 18208944, 15)]),
             # 2016-02-26: 24071720 (amd64/Linux)     INITIAL
             # 2016-04-21: 25542832 (amd64/Linux)
             # 2016-05-23: 25247216 (amd64/Linux)     Use -G1
@@ -88,6 +88,7 @@ test('T4029',
             #                                        lazy interface file reading
             # 2017-03-07: 20476360 (amd64/Linux)     It's not entirely clear
             # 2017-03-14: 18208944 (amd64/Darwin)    Again, not clear
+            # 2017-03-15: bumped margin to 15% due to instability
       extra_hc_opts('+RTS -G1 -RTS' ),
       ],
      ghci_script,