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| author | Matthew Pickering <matthewtpickering@gmail.com> | 2019-10-09 14:32:13 +0100 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2019-10-23 05:58:58 -0400 |
| commit | 17987a4b665d4a270b1bebba1f61d67887f2653c (patch) | |
| tree | 922a01003b495c1a0cdf9457f7ecbb4985e20578 /includes/rts/EventLogFormat.h | |
| parent | b521e8b698cc415684fbc0ea5ddfab51077cb144 (diff) | |
| download | haskell-17987a4b665d4a270b1bebba1f61d67887f2653c.tar.gz | |
eventlog: Dump cost centre stack on each sample
With this change it is possible to reconstruct the timing portion of a
`.prof` file after the fact. By logging the stacks at each time point
a more precise executation trace of the program can be observed rather
than all identical cost centres being identified in the report.
There are two new events:
1. `EVENT_PROF_BEGIN` - emitted at the start of profiling to communicate
the tick interval
2. `EVENT_PROF_SAMPLE_COST_CENTRE` - emitted on each tick to communicate the
current call stack.
Fixes #17322
Diffstat (limited to 'includes/rts/EventLogFormat.h')
| -rw-r--r-- | includes/rts/EventLogFormat.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/includes/rts/EventLogFormat.h b/includes/rts/EventLogFormat.h index ad983e70b3..7b989b014b 100644 --- a/includes/rts/EventLogFormat.h +++ b/includes/rts/EventLogFormat.h @@ -180,6 +180,8 @@ #define EVENT_HEAP_PROF_SAMPLE_STRING 164 #define EVENT_HEAP_PROF_SAMPLE_END 165 #define EVENT_HEAP_BIO_PROF_SAMPLE_BEGIN 166 +#define EVENT_PROF_SAMPLE_COST_CENTRE 167 +#define EVENT_PROF_BEGIN 168 #define EVENT_USER_BINARY_MSG 181 |