Re: device polling takes more CPU hits??

From: James (haesu_at_towardex.com)
Date: 07/26/04

  • Next message: Charlie Schluting: "Re: spoofed MAC on a dhcp interface" 
    Date: Mon, 26 Jul 2004 11:01:03 -0400
To: Don Bowman <don@sandvine.com>

    Hi Don,

    > I would post the output of 'sysctl kern.polling', its likely
    > some of the tuning there is insufficient.
    > What do you have HZ set to (sysctl kern.clockrate)? I would
    > probably have it set to ~1000.
    > You will want 'machdep.cpu_idle_hlt=1'.

    Thanks for quick reply. Here is the sysctl output with polling turned on.

    -J

    root@r2.bos# sysctl kern.clockrate
    kern.clockrate: { hz = 4000, tick = 250, tickadj = 1, profhz = 1024, stathz = 128 }
            
    root@r2.bos# sysctl kern.polling
    kern.polling.burst: 150
    kern.polling.each_burst: 5
    kern.polling.burst_max: 150
    kern.polling.idle_poll: 1
    kern.polling.poll_in_trap: 1
    kern.polling.user_frac: 50
    kern.polling.reg_frac: 20
    kern.polling.short_ticks: 4909
    kern.polling.lost_polls: 11464
    kern.polling.pending_polls: 0
    kern.polling.residual_burst: 0
    kern.polling.handlers: 1
    kern.polling.enable: 1
    kern.polling.phase: 0
    kern.polling.suspect: 10249
    kern.polling.stalled: 3
                                                                                    root@r2.bos# sysctl machdep.cpu_idle_hlt
    machdep.cpu_idle_hlt: 1 

    -- 
James Jun                                            TowardEX Technologies, Inc.
Technical Lead                        Network Design, Consulting, IT Outsourcing
james@towardex.com                  Boston-based Colocation & Bandwidth Services
cell: 1(978)-394-2867           web: http://www.towardex.com , noc: www.twdx.net
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  • Next message: Charlie Schluting: "Re: spoofed MAC on a dhcp interface"

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