T9872d bytes allocated has regressed terribly on 32-bit Linux
While updating the performance testsuite numbers for 8.0.1-rc3 I noticed that T9872d
'd bytes allocated metric has somehow regressed 350% but only on 32-bit Debian 8,
=====> T9872d(normal) 22 of 30 [0, 0, 0]
cd ./perf/compiler && "/home/ben/ghc/inplace/test spaces/ghc-stage2" -c T9872d.hs -fforce-recomp -dno-debug-output -fshow-warning-groups -no-user-package-db -rtsopts -fno-warn-tabs -fno-warn-missed-specialisations -fno-ghci-history +RTS -V0 -tT9872d.comp.stats --machine-readable -RTS > T9872d.comp.stderr 2>&1
bytes allocated value is too high:
Expected T9872d(normal) bytes allocated: 59651432 +/-5%
Lower bound T9872d(normal) bytes allocated: 56668860
Upper bound T9872d(normal) bytes allocated: 62634004
Actual T9872d(normal) bytes allocated: 264566040
Deviation T9872d(normal) bytes allocated: 343.5 %
*** unexpected stat test failure for T9872d(normal)
The test passes on 64-bit Debian 8 and no similar jumps are seen in the test's history.
Trac metadata
Trac field | Value |
---|---|
Version | 7.10.3 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Test Suite |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |