The Billable instance time metric can give you a sense of how many instances were running.For example, if a Revision with 2 container instances has been continuously serving traffic in the last minute, the value is 2s/s
Alternatively, you can export your logs to BigQuery. Each log entry has an instance ID as label (see docs) that you could group by and count.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…