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devtoolsentity · corroborated across sources

papi

for performance engineers

Steady

19

signal score

1

live items

Accelerating

7-day est. ~26

stackoverflow

Why this scored 19

every term, weighted
Velocity+0.0 / 40 max

Its fastest-moving item, measured against the pace of its own source

Acceleration+10.9 / 25 max

Whether that velocity is itself speeding up, as a per-hour rate

Cross-source spread+0.0 / 25 max

How many independent communities its own items come from

Recency+8.5 / 10 max

Decays to zero over 14 days, counted from when we first saw it

Saturation penalty0.5 / 30 max

Subtracted once something is big and old — sized by its biggest item, aged from when we first saw it

Composite18.9

Weights are hand-tuned, not learned — we're calibrating them against realized trends as history accumulates. On an entity's first sighting there's no previous reading to compare against, so acceleration starts from a neutral prior rather than a measurement, and velocity falls back to engagement over its whole lifetime until a second reading exists. Full methodology

Outlook

low confidence · estimate, not a guarantee

7-day

~26

range 038

14-day

~29

range 043

30-day

~29

range 049

Signal history

7-day window (free)

— — projected trajectory (estimate, not a guarantee)

The evidence

The live items this entity's score aggregates — every community independently talking about it right now. This is the corroboration, shown, not claimed.

  1. 119

    Leaks in PAPI_event_name_to_code() when called concurrently from multiple threads

    Concurrent calls to PAPI_event_name_to_code leak memory on multithreaded use. — for performance engineers

    stackoverflowdevtoolsSteady2d ago