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Subject: Re: dev.cpu.0.freq disapeared
From: Dmitry Sivachenko <trtrmitya@gmail.com>
In-Reply-To: <550ECD9D.2030108@nimnet.asn.au>
Date: Sun, 22 Mar 2015 20:11:36 +0300
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References: <EE8D6553-4319-4CE1-8F73-3244C49F454C@gmail.com>
 <20150322055323.GA48710@server.rulingia.com>
 <77C8F6F7-2C25-4BC5-B373-11441AB58FAD@gmail.com>
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To: Ian Smith <smithi@nimnet.asn.au>
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Cc: FreeBSD Stable ML <stable@freebsd.org>, Peter Jeremy <peter@rulingia.com>,
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> On 22 =D0=BC=D0=B0=D1=80=D1=82=D0=B0 2015 =D0=B3., at 17:11, Ian Smith =
<smithi@nimnet.asn.au> wrote:
>=20
> Dmitry Sivachenko wrote:
>>> On 22 =D0=BC=D0=B0=D1=80=D1=82=D0=B0 2015 =D0=B3., at 8:53, Peter =
Jeremy <peter@rulingia.com> wrote:
>>> On 2015-Mar-22 00:58:55 +0300, Dmitry Sivachenko =
<trtrmitya@gmail.com> wrote:
>>>> I have a machine with the following processor:
>>>> CPU: Intel(R) Xeon(R) CPU           E5620  @ 2.40GHz (2400.14-MHz
>>>> K8-class CPU) Origin=3D"GenuineIntel"  Id=3D0x206c2  Family=3D0x6 =
Model=3D0x2c  Stepping=3D2
>>> ...
>>>> After I upgraded to 10.1-STABLE #0 r279956, this sysctl disapeared. =
% sysctl dev.cpu.0.freq sysctl: unknown oid 'dev.cpu.0.freq': No such =
file or directory %
>=20
>>> What OIDs do you have?  Does dev.cpu.0 exist?  How about dev.cpu?
>> dev.cpu.0 does exist.
>=20
> It could be helpful to show all of:
>=20
> % sysctl dev.cpu
> % sysctl dev.est	# if you have that?
> % sysctl -a | grep freq | grep -v time
>=20
> both before and after re-enabling p4tcc.

Hello,

With #hint.p4tcc.0.disabled=3D"1"  commented out:

% sysctl dev.cpu
dev.cpu.%parent:=20
dev.cpu.0.%desc: ACPI CPU
dev.cpu.0.%driver: cpu
dev.cpu.0.%location: handle=3D\_PR_.P001
dev.cpu.0.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.0.%parent: acpi0
dev.cpu.0.coretemp.delta: 67
dev.cpu.0.coretemp.resolution: 1
dev.cpu.0.coretemp.tjmax: 95.0C
dev.cpu.0.coretemp.throttle_log: 0
dev.cpu.0.temperature: 28.0C
dev.cpu.0.freq: 2400
dev.cpu.0.freq_levels: 2400/-1 2100/-1 1800/-1 1500/-1 1200/-1 900/-1 =
600/-1 300/-1
dev.cpu.0.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.0.cx_lowest: C1
dev.cpu.0.cx_usage: 100.00% 0.00% 0.00% last 261us
dev.cpu.1.%desc: ACPI CPU
dev.cpu.1.%driver: cpu
dev.cpu.1.%location: handle=3D\_PR_.P002
dev.cpu.1.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.1.%parent: acpi0
dev.cpu.1.coretemp.delta: 67
dev.cpu.1.coretemp.resolution: 1
dev.cpu.1.coretemp.tjmax: 95.0C
dev.cpu.1.coretemp.throttle_log: 0
dev.cpu.1.temperature: 28.0C
dev.cpu.1.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.1.cx_lowest: C1
dev.cpu.1.cx_usage: 100.00% 0.00% 0.00% last 71201us
dev.cpu.2.%desc: ACPI CPU
dev.cpu.2.%driver: cpu
dev.cpu.2.%location: handle=3D\_PR_.P003
dev.cpu.2.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.2.%parent: acpi0
dev.cpu.2.coretemp.delta: 62
dev.cpu.2.coretemp.resolution: 1
dev.cpu.2.coretemp.tjmax: 95.0C
dev.cpu.2.coretemp.throttle_log: 0
dev.cpu.2.temperature: 33.0C
dev.cpu.2.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.2.cx_lowest: C1
dev.cpu.2.cx_usage: 100.00% 0.00% 0.00% last 124614us
dev.cpu.3.%desc: ACPI CPU
dev.cpu.3.%driver: cpu
dev.cpu.3.%location: handle=3D\_PR_.P004
dev.cpu.3.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.3.%parent: acpi0
dev.cpu.3.coretemp.delta: 62
dev.cpu.3.coretemp.resolution: 1
dev.cpu.3.coretemp.tjmax: 95.0C
dev.cpu.3.coretemp.throttle_log: 0
dev.cpu.3.temperature: 33.0C
dev.cpu.3.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.3.cx_lowest: C1
dev.cpu.3.cx_usage: 100.00% 0.00% 0.00% last 101864us
dev.cpu.4.%desc: ACPI CPU
dev.cpu.4.%driver: cpu
dev.cpu.4.%location: handle=3D\_PR_.P005
dev.cpu.4.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.4.%parent: acpi0
dev.cpu.4.coretemp.delta: 62
dev.cpu.4.coretemp.resolution: 1
dev.cpu.4.coretemp.tjmax: 95.0C
dev.cpu.4.coretemp.throttle_log: 0
dev.cpu.4.temperature: 33.0C
dev.cpu.4.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.4.cx_lowest: C1
dev.cpu.4.cx_usage: 100.00% 0.00% 0.00% last 127376us
dev.cpu.5.%desc: ACPI CPU
dev.cpu.5.%driver: cpu
dev.cpu.5.%location: handle=3D\_PR_.P006
dev.cpu.5.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.5.%parent: acpi0
dev.cpu.5.coretemp.delta: 62
dev.cpu.5.coretemp.resolution: 1
dev.cpu.5.coretemp.tjmax: 95.0C
dev.cpu.5.coretemp.throttle_log: 0
dev.cpu.5.temperature: 33.0C
dev.cpu.5.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.5.cx_lowest: C1
dev.cpu.5.cx_usage: 100.00% 0.00% 0.00% last 107493us
dev.cpu.6.%desc: ACPI CPU
dev.cpu.6.%driver: cpu
dev.cpu.6.%location: handle=3D\_PR_.P007
dev.cpu.6.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.6.%parent: acpi0
dev.cpu.6.coretemp.delta: 63
dev.cpu.6.coretemp.resolution: 1
dev.cpu.6.coretemp.tjmax: 95.0C
dev.cpu.6.coretemp.throttle_log: 0
dev.cpu.6.temperature: 32.0C
dev.cpu.6.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.6.cx_lowest: C1
dev.cpu.6.cx_usage: 100.00% 0.00% 0.00% last 155573us
dev.cpu.7.%desc: ACPI CPU
dev.cpu.7.%driver: cpu
dev.cpu.7.%location: handle=3D\_PR_.P008
dev.cpu.7.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.7.%parent: acpi0
dev.cpu.7.coretemp.delta: 63
dev.cpu.7.coretemp.resolution: 1
dev.cpu.7.coretemp.tjmax: 95.0C
dev.cpu.7.coretemp.throttle_log: 0
dev.cpu.7.temperature: 32.0C
dev.cpu.7.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.7.cx_lowest: C1
dev.cpu.7.cx_usage: 100.00% 0.00% 0.00% last 32278us
dev.cpu.8.%desc: ACPI CPU
dev.cpu.8.%driver: cpu
dev.cpu.8.%location: handle=3D\_PR_.P009
dev.cpu.8.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.8.%parent: acpi0
dev.cpu.8.coretemp.delta: 72
dev.cpu.8.coretemp.resolution: 1
dev.cpu.8.coretemp.tjmax: 95.0C
dev.cpu.8.coretemp.throttle_log: 0
dev.cpu.8.temperature: 23.0C
dev.cpu.8.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.8.cx_lowest: C1
dev.cpu.8.cx_usage: 100.00% 0.00% 0.00% last 163115us
dev.cpu.9.%desc: ACPI CPU
dev.cpu.9.%driver: cpu
dev.cpu.9.%location: handle=3D\_PR_.P010
dev.cpu.9.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.9.%parent: acpi0
dev.cpu.9.coretemp.delta: 72
dev.cpu.9.coretemp.resolution: 1
dev.cpu.9.coretemp.tjmax: 95.0C
dev.cpu.9.coretemp.throttle_log: 0
dev.cpu.9.temperature: 23.0C
dev.cpu.9.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.9.cx_lowest: C1
dev.cpu.9.cx_usage: 100.00% 0.00% 0.00% last 168834us
dev.cpu.10.%desc: ACPI CPU
dev.cpu.10.%driver: cpu
dev.cpu.10.%location: handle=3D\_PR_.P011
dev.cpu.10.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.10.%parent: acpi0
dev.cpu.10.coretemp.delta: 64
dev.cpu.10.coretemp.resolution: 1
dev.cpu.10.coretemp.tjmax: 95.0C
dev.cpu.10.coretemp.throttle_log: 0
dev.cpu.10.temperature: 31.0C
dev.cpu.10.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.10.cx_lowest: C1
dev.cpu.10.cx_usage: 100.00% 0.00% 0.00% last 141245us
dev.cpu.11.%desc: ACPI CPU
dev.cpu.11.%driver: cpu
dev.cpu.11.%location: handle=3D\_PR_.P012
dev.cpu.11.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.11.%parent: acpi0
dev.cpu.11.coretemp.delta: 64
dev.cpu.11.coretemp.resolution: 1
dev.cpu.11.coretemp.tjmax: 95.0C
dev.cpu.11.coretemp.throttle_log: 0
dev.cpu.11.temperature: 31.0C
dev.cpu.11.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.11.cx_lowest: C1
dev.cpu.11.cx_usage: 100.00% 0.00% 0.00% last 133706us
dev.cpu.12.%desc: ACPI CPU
dev.cpu.12.%driver: cpu
dev.cpu.12.%location: handle=3D\_PR_.P013
dev.cpu.12.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.12.%parent: acpi0
dev.cpu.12.coretemp.delta: 69
dev.cpu.12.coretemp.resolution: 1
dev.cpu.12.coretemp.tjmax: 95.0C
dev.cpu.12.coretemp.throttle_log: 0
dev.cpu.12.temperature: 25.0C
dev.cpu.12.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.12.cx_lowest: C1
dev.cpu.12.cx_usage: 100.00% 0.00% 0.00% last 112608us
dev.cpu.13.%desc: ACPI CPU
dev.cpu.13.%driver: cpu
dev.cpu.13.%location: handle=3D\_PR_.P014
dev.cpu.13.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.13.%parent: acpi0
dev.cpu.13.coretemp.delta: 70
dev.cpu.13.coretemp.resolution: 1
dev.cpu.13.coretemp.tjmax: 95.0C
dev.cpu.13.coretemp.throttle_log: 0
dev.cpu.13.temperature: 25.0C
dev.cpu.13.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.13.cx_lowest: C1
dev.cpu.13.cx_usage: 100.00% 0.00% 0.00% last 58467us
dev.cpu.14.%desc: ACPI CPU
dev.cpu.14.%driver: cpu
dev.cpu.14.%location: handle=3D\_PR_.P015
dev.cpu.14.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.14.%parent: acpi0
dev.cpu.14.coretemp.delta: 67
dev.cpu.14.coretemp.resolution: 1
dev.cpu.14.coretemp.tjmax: 95.0C
dev.cpu.14.coretemp.throttle_log: 0
dev.cpu.14.temperature: 28.0C
dev.cpu.14.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.14.cx_lowest: C1
dev.cpu.14.cx_usage: 100.00% 0.00% 0.00% last 41275us
dev.cpu.15.%desc: ACPI CPU
dev.cpu.15.%driver: cpu
dev.cpu.15.%location: handle=3D\_PR_.P016
dev.cpu.15.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.15.%parent: acpi0
dev.cpu.15.coretemp.delta: 67
dev.cpu.15.coretemp.resolution: 1
dev.cpu.15.coretemp.tjmax: 95.0C
dev.cpu.15.coretemp.throttle_log: 0
dev.cpu.15.temperature: 28.0C
dev.cpu.15.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.15.cx_lowest: C1
dev.cpu.15.cx_usage: 100.00% 0.00% 0.00% last 249us

% sysctl dev.est
dev.est.%parent:=20

% sysctl -a | grep freq | grep -v time
kern.acct_chkfreq: 15
device  cpufreq
net.inet.sctp.sack_freq: 2
debug.cpufreq.lowest: 0
debug.cpufreq.verbose: 0
machdep.i8254_freq: 1193182
machdep.tsc_freq: 2400132656
dev.cpu.0.freq: 2400
dev.cpu.0.freq_levels: 2400/-1 2100/-1 1800/-1 1500/-1 1200/-1 900/-1 =
600/-1 300/-1
dev.p4tcc.0.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.1.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.2.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.3.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.4.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.5.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.6.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.7.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.8.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.9.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.10.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.11.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.12.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.13.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.14.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.p4tcc.15.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1 =
3750/-1 2500/-1 1250/-1
dev.cpufreq.%parent:=20
dev.cpufreq.0.%desc:=20
dev.cpufreq.0.%driver: cpufreq
dev.cpufreq.0.%location:=20
dev.cpufreq.0.%pnpinfo:=20
dev.cpufreq.0.%parent: cpu0
dev.cpufreq.1.%desc:=20
dev.cpufreq.1.%driver: cpufreq
dev.cpufreq.1.%location:=20
dev.cpufreq.1.%pnpinfo:=20
dev.cpufreq.1.%parent: cpu1
dev.cpufreq.2.%desc:=20
dev.cpufreq.2.%driver: cpufreq
dev.cpufreq.2.%location:=20
dev.cpufreq.2.%pnpinfo:=20
dev.cpufreq.2.%parent: cpu2
dev.cpufreq.3.%desc:=20
dev.cpufreq.3.%driver: cpufreq
dev.cpufreq.3.%location:=20
dev.cpufreq.3.%pnpinfo:=20
dev.cpufreq.3.%parent: cpu3
dev.cpufreq.4.%desc:=20
dev.cpufreq.4.%driver: cpufreq
dev.cpufreq.4.%location:=20
dev.cpufreq.4.%pnpinfo:=20
dev.cpufreq.4.%parent: cpu4
dev.cpufreq.5.%desc:=20
dev.cpufreq.5.%driver: cpufreq
dev.cpufreq.5.%location:=20
dev.cpufreq.5.%pnpinfo:=20
dev.cpufreq.5.%parent: cpu5
dev.cpufreq.6.%desc:=20
dev.cpufreq.6.%driver: cpufreq
dev.cpufreq.6.%location:=20
dev.cpufreq.6.%pnpinfo:=20
dev.cpufreq.6.%parent: cpu6
dev.cpufreq.7.%desc:=20
dev.cpufreq.7.%driver: cpufreq
dev.cpufreq.7.%location:=20
dev.cpufreq.7.%pnpinfo:=20
dev.cpufreq.7.%parent: cpu7
dev.cpufreq.8.%desc:=20
dev.cpufreq.8.%driver: cpufreq
dev.cpufreq.8.%location:=20
dev.cpufreq.8.%pnpinfo:=20
dev.cpufreq.8.%parent: cpu8
dev.cpufreq.9.%desc:=20
dev.cpufreq.9.%driver: cpufreq
dev.cpufreq.9.%location:=20
dev.cpufreq.9.%pnpinfo:=20
dev.cpufreq.9.%parent: cpu9
dev.cpufreq.10.%desc:=20
dev.cpufreq.10.%driver: cpufreq
dev.cpufreq.10.%location:=20
dev.cpufreq.10.%pnpinfo:=20
dev.cpufreq.10.%parent: cpu10
dev.cpufreq.11.%desc:=20
dev.cpufreq.11.%driver: cpufreq
dev.cpufreq.11.%location:=20
dev.cpufreq.11.%pnpinfo:=20
dev.cpufreq.11.%parent: cpu11
dev.cpufreq.12.%desc:=20
dev.cpufreq.12.%driver: cpufreq
dev.cpufreq.12.%location:=20
dev.cpufreq.12.%pnpinfo:=20
dev.cpufreq.12.%parent: cpu12
dev.cpufreq.13.%desc:=20
dev.cpufreq.13.%driver: cpufreq
dev.cpufreq.13.%location:=20
dev.cpufreq.13.%pnpinfo:=20
dev.cpufreq.13.%parent: cpu13
dev.cpufreq.14.%desc:=20
dev.cpufreq.14.%driver: cpufreq
dev.cpufreq.14.%location:=20
dev.cpufreq.14.%pnpinfo:=20
dev.cpufreq.14.%parent: cpu14
dev.cpufreq.15.%desc:=20
dev.cpufreq.15.%driver: cpufreq
dev.cpufreq.15.%location:=20
dev.cpufreq.15.%pnpinfo:=20
dev.cpufreq.15.%parent: cpu15


With hint.p4tcc.0.disabled=3D"1" active (default in 10=3DSTABLE now):

% sysctl dev.cpu
dev.cpu.%parent:=20
dev.cpu.0.%desc: ACPI CPU
dev.cpu.0.%driver: cpu
dev.cpu.0.%location: handle=3D\_PR_.P001
dev.cpu.0.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.0.%parent: acpi0
dev.cpu.0.coretemp.delta: 66
dev.cpu.0.coretemp.resolution: 1
dev.cpu.0.coretemp.tjmax: 95.0C
dev.cpu.0.coretemp.throttle_log: 0
dev.cpu.0.temperature: 29.0C
dev.cpu.0.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.0.cx_lowest: C1
dev.cpu.0.cx_usage: 100.00% 0.00% 0.00% last 428us
dev.cpu.1.%desc: ACPI CPU
dev.cpu.1.%driver: cpu
dev.cpu.1.%location: handle=3D\_PR_.P002
dev.cpu.1.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.1.%parent: acpi0
dev.cpu.1.coretemp.delta: 66
dev.cpu.1.coretemp.resolution: 1
dev.cpu.1.coretemp.tjmax: 95.0C
dev.cpu.1.coretemp.throttle_log: 0
dev.cpu.1.temperature: 29.0C
dev.cpu.1.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.1.cx_lowest: C1
dev.cpu.1.cx_usage: 100.00% 0.00% 0.00% last 223406us
dev.cpu.2.%desc: ACPI CPU
dev.cpu.2.%driver: cpu
dev.cpu.2.%location: handle=3D\_PR_.P003
dev.cpu.2.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.2.%parent: acpi0
dev.cpu.2.coretemp.delta: 63
dev.cpu.2.coretemp.resolution: 1
dev.cpu.2.coretemp.tjmax: 95.0C
dev.cpu.2.coretemp.throttle_log: 0
dev.cpu.2.temperature: 32.0C
dev.cpu.2.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.2.cx_lowest: C1
dev.cpu.2.cx_usage: 100.00% 0.00% 0.00% last 179299us
dev.cpu.3.%desc: ACPI CPU
dev.cpu.3.%driver: cpu
dev.cpu.3.%location: handle=3D\_PR_.P004
dev.cpu.3.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.3.%parent: acpi0
dev.cpu.3.coretemp.delta: 63
dev.cpu.3.coretemp.resolution: 1
dev.cpu.3.coretemp.tjmax: 95.0C
dev.cpu.3.coretemp.throttle_log: 0
dev.cpu.3.temperature: 33.0C
dev.cpu.3.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.3.cx_lowest: C1
dev.cpu.3.cx_usage: 100.00% 0.00% 0.00% last 108280us
dev.cpu.4.%desc: ACPI CPU
dev.cpu.4.%driver: cpu
dev.cpu.4.%location: handle=3D\_PR_.P005
dev.cpu.4.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.4.%parent: acpi0
dev.cpu.4.coretemp.delta: 62
dev.cpu.4.coretemp.resolution: 1
dev.cpu.4.coretemp.tjmax: 95.0C
dev.cpu.4.coretemp.throttle_log: 0
dev.cpu.4.temperature: 33.0C
dev.cpu.4.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.4.cx_lowest: C1
dev.cpu.4.cx_usage: 100.00% 0.00% 0.00% last 120264us
dev.cpu.5.%desc: ACPI CPU
dev.cpu.5.%driver: cpu
dev.cpu.5.%location: handle=3D\_PR_.P006
dev.cpu.5.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.5.%parent: acpi0
dev.cpu.5.coretemp.delta: 62
dev.cpu.5.coretemp.resolution: 1
dev.cpu.5.coretemp.tjmax: 95.0C
dev.cpu.5.coretemp.throttle_log: 0
dev.cpu.5.temperature: 33.0C
dev.cpu.5.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.5.cx_lowest: C1
dev.cpu.5.cx_usage: 100.00% 0.00% 0.00% last 53853us
dev.cpu.6.%desc: ACPI CPU
dev.cpu.6.%driver: cpu
dev.cpu.6.%location: handle=3D\_PR_.P007
dev.cpu.6.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.6.%parent: acpi0
dev.cpu.6.coretemp.delta: 64
dev.cpu.6.coretemp.resolution: 1
dev.cpu.6.coretemp.tjmax: 95.0C
dev.cpu.6.coretemp.throttle_log: 0
dev.cpu.6.temperature: 31.0C
dev.cpu.6.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.6.cx_lowest: C1
dev.cpu.6.cx_usage: 100.00% 0.00% 0.00% last 126291us
dev.cpu.7.%desc: ACPI CPU
dev.cpu.7.%driver: cpu
dev.cpu.7.%location: handle=3D\_PR_.P008
dev.cpu.7.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.7.%parent: acpi0
dev.cpu.7.coretemp.delta: 64
dev.cpu.7.coretemp.resolution: 1
dev.cpu.7.coretemp.tjmax: 95.0C
dev.cpu.7.coretemp.throttle_log: 0
dev.cpu.7.temperature: 31.0C
dev.cpu.7.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.7.cx_lowest: C1
dev.cpu.7.cx_usage: 100.00% 0.00% 0.00% last 39246us
dev.cpu.8.%desc: ACPI CPU
dev.cpu.8.%driver: cpu
dev.cpu.8.%location: handle=3D\_PR_.P009
dev.cpu.8.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.8.%parent: acpi0
dev.cpu.8.coretemp.delta: 73
dev.cpu.8.coretemp.resolution: 1
dev.cpu.8.coretemp.tjmax: 95.0C
dev.cpu.8.coretemp.throttle_log: 0
dev.cpu.8.temperature: 22.0C
dev.cpu.8.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.8.cx_lowest: C1
dev.cpu.8.cx_usage: 100.00% 0.00% 0.00% last 237500us
dev.cpu.9.%desc: ACPI CPU
dev.cpu.9.%driver: cpu
dev.cpu.9.%location: handle=3D\_PR_.P010
dev.cpu.9.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.9.%parent: acpi0
dev.cpu.9.coretemp.delta: 73
dev.cpu.9.coretemp.resolution: 1
dev.cpu.9.coretemp.tjmax: 95.0C
dev.cpu.9.coretemp.throttle_log: 0
dev.cpu.9.temperature: 22.0C
dev.cpu.9.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.9.cx_lowest: C1
dev.cpu.9.cx_usage: 100.00% 0.00% 0.00% last 48599us
dev.cpu.10.%desc: ACPI CPU
dev.cpu.10.%driver: cpu
dev.cpu.10.%location: handle=3D\_PR_.P011
dev.cpu.10.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.10.%parent: acpi0
dev.cpu.10.coretemp.delta: 64
dev.cpu.10.coretemp.resolution: 1
dev.cpu.10.coretemp.tjmax: 95.0C
dev.cpu.10.coretemp.throttle_log: 0
dev.cpu.10.temperature: 31.0C
dev.cpu.10.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.10.cx_lowest: C1
dev.cpu.10.cx_usage: 100.00% 0.00% 0.00% last 276265us
dev.cpu.11.%desc: ACPI CPU
dev.cpu.11.%driver: cpu
dev.cpu.11.%location: handle=3D\_PR_.P012
dev.cpu.11.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.11.%parent: acpi0
dev.cpu.11.coretemp.delta: 64
dev.cpu.11.coretemp.resolution: 1
dev.cpu.11.coretemp.tjmax: 95.0C
dev.cpu.11.coretemp.throttle_log: 0
dev.cpu.11.temperature: 31.0C
dev.cpu.11.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.11.cx_lowest: C1
dev.cpu.11.cx_usage: 100.00% 0.00% 0.00% last 45235us
dev.cpu.12.%desc: ACPI CPU
dev.cpu.12.%driver: cpu
dev.cpu.12.%location: handle=3D\_PR_.P013
dev.cpu.12.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.12.%parent: acpi0
dev.cpu.12.coretemp.delta: 70
dev.cpu.12.coretemp.resolution: 1
dev.cpu.12.coretemp.tjmax: 95.0C
dev.cpu.12.coretemp.throttle_log: 0
dev.cpu.12.temperature: 25.0C
dev.cpu.12.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.12.cx_lowest: C1
dev.cpu.12.cx_usage: 100.00% 0.00% 0.00% last 176635us
dev.cpu.13.%desc: ACPI CPU
dev.cpu.13.%driver: cpu
dev.cpu.13.%location: handle=3D\_PR_.P014
dev.cpu.13.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.13.%parent: acpi0
dev.cpu.13.coretemp.delta: 70
dev.cpu.13.coretemp.resolution: 1
dev.cpu.13.coretemp.tjmax: 95.0C
dev.cpu.13.coretemp.throttle_log: 0
dev.cpu.13.temperature: 25.0C
dev.cpu.13.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.13.cx_lowest: C1
dev.cpu.13.cx_usage: 100.00% 0.00% 0.00% last 86467us
dev.cpu.14.%desc: ACPI CPU
dev.cpu.14.%driver: cpu
dev.cpu.14.%location: handle=3D\_PR_.P015
dev.cpu.14.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.14.%parent: acpi0
dev.cpu.14.coretemp.delta: 68
dev.cpu.14.coretemp.resolution: 1
dev.cpu.14.coretemp.tjmax: 95.0C
dev.cpu.14.coretemp.throttle_log: 0
dev.cpu.14.temperature: 27.0C
dev.cpu.14.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.14.cx_lowest: C1
dev.cpu.14.cx_usage: 100.00% 0.00% 0.00% last 151541us
dev.cpu.15.%desc: ACPI CPU
dev.cpu.15.%driver: cpu
dev.cpu.15.%location: handle=3D\_PR_.P016
dev.cpu.15.%pnpinfo: _HID=3Dnone _UID=3D0
dev.cpu.15.%parent: acpi0
dev.cpu.15.coretemp.delta: 68
dev.cpu.15.coretemp.resolution: 1
dev.cpu.15.coretemp.tjmax: 95.0C
dev.cpu.15.coretemp.throttle_log: 0
dev.cpu.15.temperature: 27.0C
dev.cpu.15.cx_supported: C1/1/32 C2/3/96 C3/3/128
dev.cpu.15.cx_lowest: C1
dev.cpu.15.cx_usage: 100.00% 0.00% 0.00% last 7904us

% sysctl dev.est
dev.est.%parent:=20

% sysctl -a | grep freq | grep -v time
kern.acct_chkfreq: 15
device  cpufreq
net.inet.sctp.sack_freq: 2
debug.cpufreq.lowest: 0
debug.cpufreq.verbose: 0
machdep.i8254_freq: 1193182
machdep.tsc_freq: 2400136744


Also I have this in dmesg which may be relevant:

p4tcc0: <CPU Frequency Thermal Control> on cpu0
 coretemp1: <CPU On-Die Thermal Sensors> on cpu1
 est1: <Enhanced SpeedStep Frequency Control> on cpu1
 est: CPU supports Enhanced Speedstep, but is not recognized.
 est: cpu_vendor GenuineIntel, msr 12
 device_attach: est1 attach returned 6

for each CPU.  The line starting with p4tcc apears only when I remove =
hint.p4tcc.0.disabled=3D"1"=20


>=20
> Are you not running powerd?  Of course powerd won't start if it can't
> get dev.cpu.0.freq but you can ordinarily use it to set lowest and/or
> highest freqs.  Once FreeBSD starts, BIOS settings should have little
> do with it, AFAIK, except how they might set freq before powerd =
starts.

No, I don't use powerd. I want my processor to always run at max speed.
But I encountered situations when sometime system is running at 1200GHz =
instead of 2400 and it is fixed with BIOS updates.
That is why I check dev.cpu.0.freq each time system reboot.


My processor is Intel E5620 :
=
http://ark.intel.com/products/47925/Intel-Xeon-Processor-E5620-12M-Cache-2=
_40-GHz-5_86-GTs-Intel-QPI

It is not so ancient thing.=