Typical event rate · category

SIEM log rate: 10,000 events/s per device

A SIEM source typically produces 10,000 events per second per device, bursting to 50,000: a normalised feed from another platform. The rate is an informed estimate, a starting point for a sizing, not a measurement; the event sizes below are measured.

Measured sources in this category

Average bytes per event, measured, and one device's volume at the typical 10,000 events per second.

At the median size, a day from one device, 966 GB, is about the size of a PlayStation 5's drive.

Size a fleet

Raw bytes, before compression, indexing overhead and replication.

Measure a sample of your own

The figure above is an average; yours will differ, and for SIEM logs what moves it most is this: a normalised feed from another platform. The profiler reads a sample from SIEM logs in your browser, line by line, one event per line, and reports the bytes per line to set against it. Nothing is uploaded.