#14714: RTS Timings on windows are somewhat unreliable
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Reporter: AndreasK | Owner: (none)
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 8.2.2
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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Times given by the RTS are very unreliable on small scales.
Part of that is I assume simply the lack of precision.
But CPU Time often is reported higher than wall clock time (using the
single threaded RTS) as well.
Examples:
{{{
$ ./binary-trees 12 +RTS -t
stretch tree of depth 13 check: -1
...
long lived tree of depth 12 check: -1
<