wu-sheng opened a new issue, #13441: URL: https://github.com/apache/skywalking/issues/13441
### Search before asking - [x] I had searched in the [issues](https://github.com/apache/skywalking/issues?q=is%3Aissue) and found no similar issues. ### Apache SkyWalking Component OAP server (apache/skywalking) ### What happened During reviewing `Persistence Execution Latency Per Metric Type (ms / 5min)` on so11y, I noticed the max(p99) is always reaching 25000ms(25s). Furthermore, I checked the codes and noticed that, as the following ways to create a timer ```java // Execution stage HistogramMetrics.Timer executeLatencyTimer = executeLatency.createTimer(); batchDAO.flush(innerPrepareRequests) .whenComplete(($1, $2) -> executeLatencyTimer.close()); ``` This thing relies on flush implementations. In BanyanDB implementation(maybe in Elasticsearch as well), it doesn't always call real flushing as the method called. There is a `#flushIfNeeded` and `#doPeriodicalFlush` in BanyanDB client(`AbstractBulkWriteProcessor`). So, this metric doesn't measure the writing performance well. ### What you expected to happen We should create a way to measure writing performance better and accurately. And we are lacking a way to measure record(trace and logs) writing. ### How to reproduce <img width="2922" height="1208" alt="Image" src="https://github.com/user-attachments/assets/688a3096-b885-4835-b11b-4ac74cea098e" /> ### Anything else _No response_ ### Are you willing to submit a pull request to fix on your own? - [ ] Yes I am willing to submit a pull request on my own! ### Code of Conduct - [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@skywalking.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org