I ran then program with 1500 threads and in top it looked the this:

PID USERNAME    THR PRI NICE   SIZE    RES STATE   C   TIME    CPU COMMAND
20382 yuri 1500 99 0 641M 462M umtxn 0 0:00 19623.14% quicksort
<skipped further>

Where can I read how CPU column is calculated?

Some time ago I saw another weird fenomenon when CPU column: 5% CPU load for the pocess that just cycles in CPU.

Yuri

7.2-STABLE, i7-920 (4 CPUs)
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