Heap profiling - hp2ps: samples out of sequence
make TEST=hpc_fork WAY=prof
is failing, but it has nothing to do with hpc
.
hp2ps: hpc_fork.hp, line 9, samples out of sequence
hp2ps error when processing heap profile for hpc_fork
hpc_fork.hs:
module main where
import system.posix.process
import control.concurrent
main = do
pid1 <- forkprocess $ do threaddelay 100000
pid2 <- forkprocess $ do threaddelay 100000
print ()
To reproduce:
$ ghc-8.0.1 hpc_fork.hs -fforce-recomp -prof
$ ./hpc_fork +RTS -hc
$ hp2ps hpc_fork.hp
Example hpc_fork.hp:
JOB "hpc_fork +RTS -hc"
DATE "Thu Feb 25 22:37 2016"
SAMPLE_UNIT "seconds"
VALUE_UNIT "bytes"
BEGIN_SAMPLE 0.000000
END_SAMPLE 0.000000
BEGIN_SAMPLE 0.005672
END_SAMPLE 0.005672
BEGIN_SAMPLE 0.003167
END_SAMPLE 0.003167
BEGIN_SAMPLE 0.003311
END_SAMPLE 0.003311
This is a regression from 7.10.3.
Trac metadata
Trac field | Value |
---|---|
Version | 8.0.1-rc2 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Profiling |
Test case | |
Differential revisions | |
BlockedBy | |
Related | #664 (closed) |
Blocking | |
CC | |
Operating system | |
Architecture |