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Live users: a user's logout takes their connections out of hardware, measured, 2026-10-23

Discovery 5 of the discoveries, from source to measured on both appliances. The coprocessor keeps a table of the users logged in - a bit for each of 65,536 - and every connection carries its user's number in its entry. Two commands set and clear a user's bit, and a third sets a connection's user in place (the vendor's luid_fpop.c, luid_rpc.c and conn_table.h; 680).

The whole page, with how it was taken and what it does not show: Live users: a user's logout takes their connections out of hardware, measured, 2026-10-23.

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