On 2021-04-27 11:28, Ian Lepore wrote:
On Tue, 2021-04-27 at 19:22 +0100, tech-lists wrote:
Hi,
Not sure where to put this. system is amd64/stable/13. It's running
powerd but with no additional flags.
CPU is Intel(R) Core(TM) i7-4770K CPU. Has 32GB RAM
The system is clocked in the bios at 4.251 GHz. I never see this
value
in sysctl dev.cpu.[0-7].freq though. Here's the output:
[...]
sysctl dev.cpu.0
dev.cpu.0.cx_method: C1/hlt
dev.cpu.0.cx_usage_counters: 100878534
dev.cpu.0.cx_usage: 100.00% last 185us
dev.cpu.0.cx_lowest: C1
dev.cpu.0.cx_supported: C1/1/0
dev.cpu.0.freq_levels: 3400/84000 3200/77169 3100/73848 2900/67388
2700/61182 2500/55201 2400/52298 2200/46677 2000/41272 1800/36091
1700/34277 1500/29407 1300/24752 1100/20312 1000/18167 800/14031
dev.cpu.0.freq: 3400
dev.cpu.0.temperature: 68.0C
dev.cpu.0.coretemp.throttle_log: 0
dev.cpu.0.coretemp.tjmax: 100.0C
dev.cpu.0.coretemp.resolution: 1
dev.cpu.0.coretemp.delta: 32
dev.cpu.0.%parent: acpi0
dev.cpu.0.%pnpinfo: _HID=none _UID=0 _CID=none
dev.cpu.0.%location: handle=\_PR_.CPU0
dev.cpu.0.%driver: cpu
dev.cpu.0.%desc: ACPI CPU
Here's the cpu string on boot:
CPU: Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4251.32-MHz K8-class
CPU)
So, is it really clocked? or does the sysctl show what is right?
thanks,
The same is true on my system:
CPU: Intel(R) Xeon(R) CPU W3680 @ 3.33GHz (4250.09-MHz K8-class CPU)
dev.cpu.0.freq_levels: 3334/143000 3333/130000 3200/117000 3067/105000
2933/94000 2800/85000 2667/76000 2533/68000 2400/61000 2267/54000
2133/48000 2000/43000 1867/39000 1733/35000 1600/32000
I've clocked this cpu at various speeds between 4.25 - 5.0 ghz over the
years (faster when it was younger, more conservative now that it's
old). The value in parens (4250.09) changes accordingly, but the
values in the sysctl never do. I'm sure this is running at the
overclocked speed (various benchmark values change as they should when
changing the OC values in the bios).
FWIW on all my AMD CPUs that top out @4.25-4.50Ghz FreeBSD reports
3.8Ghz. I get the idea the FreeBSD returns the average (running) top
speed on CPU0
--Chris
-- Ian
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