jif 66bd101fff Avoid unnecessary post-sampling token estimates (#34789)
## Why

The post-sampling trace calculated an estimated token count even when only the
always-on diagnostic and state log sinks were listening, adding unnecessary work
after every sample.

## What changed

- Move the estimate to a dedicated trace target and calculate it only when that
  event is enabled.
- Disable the target for the always-on diagnostic and state log sinks while
  keeping it available to explicitly configured subscribers.

## Testing

- Verify that the combined always-on subscribers do not enable the estimate
  event.

GitOrigin-RevId: ea572584597dda313e7719897d0ab1fdf7362745
2026-07-22 16:50:09 +00:00
2026-04-24 17:49:29 -07:00
2025-04-16 12:56:08 -04:00
2025-04-16 12:56:08 -04:00
2026-04-24 17:49:29 -07:00

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This repository is licensed under the Apache-2.0 License.

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