hoernschen/dendrite
1
0
Fork 0
mirror of https://github.com/hoernschen/dendrite.git synced 2024-12-27 07:28:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Update PROFILING.md

Browse source
This commit is contained in:
Neil Alexander 2020-12-03 13:48:02 +00:00
parent 246866a131
commit 253b05ccde
No known key found for this signature in database
GPG key ID: A02A2019A2BB0944
1 changed files with 6 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
docs/PROFILING.md
View file

@ -4,7 +4,7 @@ If you are running into problems with Dendrite using excessive resources (e.g. C
Dendrite contains an embedded profiler called `pprof`, which is a part of the standard Go toolchain.
### Enable the profiler
## Enable the profiler
To enable the profiler, start Dendrite with the `PPROFLISTEN` environment variable. This variable specifies which address and port to listen on, e.g.
@ -19,7 +19,9 @@ WARN[2020-12-03T13:32:33.669405000Z] [/Users/neilalexander/Desktop/dendrite/inte
Starting pprof on localhost:65432
```
### Profiling CPU usage
All examples from this point forward assume `PPROFLISTEN=localhost:65432` but you may need to adjust as necessary for your setup.
## Profiling CPU usage
To examine where CPU time is going, you can call the `profile` endpoint:
@ -45,7 +47,7 @@ curl -O http://localhost:65432/debug/pprof/profile?seconds=30
This will block for the specified number of seconds, capturing information about what Dendrite is doing, and then produces a `profile` file, which you can send onward.
### Profiling memory usage
## Profiling memory usage
To examine where memory usage is going, you can call the `heap` endpoint:
@ -74,6 +76,6 @@ If you don't have the Go tools installed but just want to capture the profile to
```
curl -O http://localhost:65432/debug/pprof/heap
``
```
This will almost instantly produce a `heap` file, which you can send onward.