Slow response processing/wrong timing information
For an example localhost POST request (multipart with a 400KB file) which takes 3ms in chrome, I’m getting the following results with Yaak:
- 12ms in
2025.9.3 - 200ms in
2026.1.0 - 1.3s in
2026.3.1
Here’s how the timeline tab looks like in 2026.3.1:
The response becomes visible after 450ms (like the timeline suggests), but the timer keeps going until it reaches 1.3s. On the server, the request still takes 3ms.
For a 250MB file which takes 300ms on the server, I get a very similar timeline, but the timer is even worse and keeps going for almost 10 minutes
Linux2026.3.1
Same here. I’ve been debugging some performance issues with an API running locally. Using Yaak to GET a resources takes 6-700 ms, while curl uses 3-40 ms on the exact same query, which means it probably wasn’t a performance issue with the API at all, but and issue with the client…