On Sun, May 02, 2010 at 09:40:13PM -0500, Bryce Edwards wrote:
> I've got a new Supermicro X58 system with an Intel Core i7 930 with 6
> GB ram that is not performing nearly as fast as it should in many ways
> (compiling, network transfers).  To give an example, it has been
> building the gcc44 port for about 10 hours now and at the same time
> rsync'ing from a Linux box on the same Gigabit network is only getting
> throughput of between 10-25 MB/sec.  When I did a buildkernel for
> 8-STABLE, it took 17 hours!  My investigations have shown inhibited
> performance on compute, network and storage activities.
> ...
> Thanks in advance for any ideas.  Here's some system info and stats:
> ...
> hint.p4tcc.0.disabled=1
> hint.acpi_throttle.0.disabled=1

Are you using powerd(8) on this machine?  Does the behaviour change if
you shut it off?

> FreeBSD tahiti.bryce.net 8.0-STABLE FreeBSD 8.0-STABLE #0: Wed Apr 28 
> 10:53:37 CDT 2010
> ...
> br...@tahiti[~]>cat /etc/sysctl.conf
> kern.timecounter.hardware=HPET

Can you explain why you're overriding the OSes choice here?  According
to other parts of your dmesg, ACPI-fast or ACPI-safe is a better choice.
The output from "sysctl -a kern.timecounter" would list off all your
timecounter choices.

Why I ask: I tend to leave HPET disabled on Supermicro systems since
ACPI-fast/safe have always been reliable for me on such.  On every
Supermicro system I've used, HPET has defaulted to disabled.

> Dmesg output:
> ...
> ACPI Warning: Incorrect checksum in table [OEMB] - 0x7B, should be 0x74 
> (20100331/tbutils-354)

I don't know if this could possibly explain the problem or not;
freebsd-acpi might have some ideas.

> pci0: <base peripheral, interrupt controller> at device 20.0 (no driver 
> attached)
> pci0: <base peripheral, interrupt controller> at device 20.1 (no driver 
> attached)
> pci0: <base peripheral, interrupt controller> at device 20.2 (no driver 
> attached)
> pci0: <base peripheral, interrupt controller> at device 20.3 (no driver 
> attached)
> pci0: <base peripheral> at device 22.0 (no driver attached)
> pci0: <base peripheral> at device 22.1 (no driver attached)
> pci0: <base peripheral> at device 22.2 (no driver attached)
> pci0: <base peripheral> at device 22.3 (no driver attached)
> pci0: <base peripheral> at device 22.4 (no driver attached)
> pci0: <base peripheral> at device 22.5 (no driver attached)
> pci0: <base peripheral> at device 22.6 (no driver attached)
> pci0: <base peripheral> at device 22.7 (no driver attached)

I have no idea what to make of this, but I see "interrupt controller"
and I get a bit concerned.  The reason is, ahci0 on your system ties in
to pci0:

> ahci0: <Intel ICH10 AHCI SATA controller> port 
> 0xa480-0xa487,0xb000-0xb003,0xac00-0xac07,0xa880-0xa883,0xa800-0xa81f mem 
> 0xf9fda000-0xf9fda7ff irq 19 at device 31.2 on pci0

-- 
| Jeremy Chadwick                                   j...@parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |

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