metrics: Synchronous EWMA#27918
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Hi, and thanks for your PR. With that change, this PR became very bitrotted. If you would like to rebase it on top of the changes, we can make another attempt at getting this PR in. Apologies for not getting to this sooner -- the |
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No problem. I'm not sure if I'll have the time to look into this anytime soon, so I will be closing this PR for the time being. |
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Implements #27846
Note:
Updating the EWMA every nanosecond would yield erratically inflated results, especially if Rate() was called immediately after EWMA initialization. I've thus opted for a 1-second interval (allowing uncounted events to accumulate) before updating the EWMA.
Previously, the StandardMeter struct held a snapshot that would be continuously updated by the Tick() function. Since metrics are no longer governed by a clock, I've reworked the Snapshot() function to create a new snapshot struct whenever it is called.