What is tailspind?

tailspind is a diagnostic process that runs all the time in the background.

What is tailspind?

It keeps a rolling buffer of stack trace samples from all running processes. Think of it as a flight recorder for your Mac. It takes lightweight snapshots of what every process is doing and keeps only the most recent data.

Why does it exist?

When something goes wrong (an app hangs, a process spins, or the system stops responding), the buffer in tailspind shows what was happening in the moments before the problem. Without it, that data would be lost because the system was too busy to capture it at the time.

How is it different from spindump?

spindump takes stack samples when a specific hang is spotted. tailspind takes samples all the time, so it has data about what was happening before the hang began. When spindump writes a report, it can pull in tailspind data for a fuller picture.

Does it affect performance?

tailspind is built to be very light. Each sample takes microseconds, and the data buffer is small. You should not notice any effect on speed.

Should you worry?

No. It is a normal macOS diagnostic process. It gives useful data when things go wrong, without slowing down everyday use.

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