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feat: add HTTP endpoint to control prof.gdump feature (#6999)

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* feat/gdump:
 ### Add Support for Jemalloc Gdump Flag

 - **`jemalloc.rs`**: Introduced `PROF_GDUMP` constant and added functions `set_gdump_active` and `is_gdump_active` to manage the gdump flag.
 - **`error.rs`**: Added error handling for reading and updating the jemalloc gdump flag with `ReadGdump` and `UpdateGdump` errors.
 - **`lib.rs`**: Exposed `is_gdump_active` and `set_gdump_active` functions for non-Windows platforms.
 - **`http.rs`**: Added HTTP routes for checking and toggling the jemalloc gdump flag status.
 - **`mem_prof.rs`**: Implemented handlers `gdump_toggle_handler` and `gdump_status_handler` for managing gdump flag via HTTP requests.

Signed-off-by: Lei, HUANG <mrsatangel@gmail.com>

* Update docs/how-to/how-to-profile-memory.md

Co-authored-by: shuiyisong <113876041+shuiyisong@users.noreply.github.com>

* fix: typo in docs

Signed-off-by: Lei, HUANG <mrsatangel@gmail.com>

---------

Signed-off-by: Lei, HUANG <mrsatangel@gmail.com>
Co-authored-by: shuiyisong <113876041+shuiyisong@users.noreply.github.com>
This commit is contained in:
Lei, HUANG
2025-10-26 18:41:19 -07:00
committed by GitHub
parent d8563ba56d
commit e386a366d0
6 changed files with 109 additions and 1 deletions
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9
docs/how-to/how-to-profile-memory.md
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@@ -71,6 +71,15 @@ curl -X POST localhost:4000/debug/prof/mem/activate
# Deactivate heap profiling
curl -X POST localhost:4000/debug/prof/mem/deactivate
# Activate gdump feature that dumps memory profiling data every time virtual memory usage exceeds previous maximum value.
curl -X POST localhost:4000/debug/prof/mem/gdump -d 'activate=true'
# Deactivate gdump.
curl -X POST localhost:4000/debug/prof/mem/gdump -d 'activate=false'
# Retrieve current gdump status.
curl -X GET localhost:4000/debug/prof/mem/gdump
```
### Dump memory profiling data