Bug 57613 - Implement a new runtime profiler API
Summary: Implement a new runtime profiler API
Status: RESOLVED FIXED
Alias: None
Product: Runtime
Classification: Mono
Component: Profiler ()
Version: master
Hardware: All All
: Normal normal
Target Milestone: Future Cycle (TBD)
Assignee: Alex Rønne Petersen
URL:
Depends on:
Blocks:
 
Reported: 2017-06-20 05:35 UTC by Alex Rønne Petersen
Modified: 2017-07-07 00:42 UTC (History)
0 users

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED FIXED

Description Alex Rønne Petersen 2017-06-20 05:35:44 UTC
The current API has a number of problems:

* Callbacks and flags can't be changed at runtime because the API only allows modifying the most recently installed profiler (!).
* Multiple callbacks are registered through the same install function, making it awkward to add new callbacks.
* A number of callbacks in the API are not properly guarded by an event flag.
* There are some callbacks that serve no actual purpose (e.g. individual class unloading has never been a thing in Mono).
* The call chain API has not been used or tested for years.
Comment 1 Alex Rønne Petersen 2017-07-07 00:42:26 UTC
https://github.com/mono/mono/pull/5101