Hello! I am using FreeBSD-9-STABLE on the following hardware:
FreeBSD/SMP: Multiprocessor System Detected: 24 CPUs FreeBSD/SMP: 2 package(s) x 6 core(s) x 2 SMT threads So I have 2 physical CPUs with 6 core each. # cpuset -g pid -1 mask: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 So each of 24 cores are numbered 0..23. 1) In what particular order are these cores numbered? Can I assume that 0..11 correspond to 1st physical CPU and 12..23 to second? How SMT threads are numbered within each core? 2) This machine has Intel network adapter (em driver). I want to pin network interrupt thread and proxy software to the same processor so they share at least L2 or L3 cache. How can I do this? From the one hand, I see the following processes: 11 root -92 - 0K 720K WAIT 19 146:38 0.00% intr{irq260: em1:rx 0} 11 root -92 - 0K 720K WAIT 19 15:11 0.00% intr{irq261: em1:tx 0} >From the other hand, the following processes seems to be unrelated to network >but they share same PID: 11 root -60 - 0K 720K WAIT 1 131:20 0.00% intr{swi4: clock} 11 root -88 - 0K 720K WAIT 17 40:03 0.00% intr{irq263: ahci0} 11 root -72 - 0K 720K WAIT 22 17:35 0.00% intr{swi1: netisr 0} 11 root -88 - 0K 720K WAIT 3 3:08 0.00% intr{irq256: mfi0} Should I use "-x" option of cpuset for that purpose (to bind irq 260 and 261 in my example)? Thanks in advance! _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"