cstate pstate 相关的工具
pcm
turbostat
Package Core CPU Bzy_MHz
man turbostat
Bzy_MHz average clock rate while the CPU was not idle (ie. in “c0” state).
似乎只是通过 mperf 寄存器获取的而已
例如如果想要仅仅展示 Bzy_MHz 和 TSC_MHz ，可以这么观察
sudo turbostat --show CPU,Bzy_MHz,TSC_MHz
在 13900K 中观察，Bzy_MHz 就是实际频率（无负载的时候很低，有负载的时候达到 5500 MHz），TSC_MHz 就是稳定的。
sudo acpi -t
这个命令可以看温度
acpitool
i7z
比想象的好用，类似 pcm 了
Socket [0] - [physical cores=24, logical cores=32, max online cores ever=24]
TURBO ENABLED on 24 Cores, Hyper Threading ON
Max Frequency without considering Turbo 3094.83 MHz (99.83 x [31])
Max TURBO Multiplier (if Enabled) with 1/2/3/4/5/6 Cores is 58x/58x/55x/55x/55x/55x
Real Current Frequency 2098.69 MHz [99.83 x 21.02] (Max of below)
Core [core-id] :Actual Freq (Mult.) C0% Halt(C1)% C3 % C6 % Temp VCore
Core 1 [0]: 1097.91 (11.00x) 1.52 98.1 0 1.37 22 0.7667
Core 2 [2]: 1097.05 (10.99x) 2.16 92.1 0 7.09 22 0.7667
Core 3 [4]: 1097.66 (10.99x) 1.18 98.6 0 1 24 0.7667
Core 4 [6]: 1098.50 (11.00x) 1.34 97.6 0 1.88 20 0.7667
Core 5 [8]: 1097.40 (10.99x) 1.56 97.2 0 2.25 23 0.7672
Core 6 [10]: 1097.82 (11.00x) 2.5 89.8 0 9.31 24 0.7672
Core 7 [12]: 1096.51 (10.98x) 1.81 95.4 0 3.93 24 0.7672
Core 8 [14]: 1098.05 (11.00x) 1.05 96.9 0 2.75 20 0.7722
Core 9 [16]: 798.54 (8.00x) 1 0.261 0 99.7 27 0.7722
Core 10 [17]: 801.90 (8.03x) 1 0.0683 0 99.9 27 0.7722
Core 11 [18]: 799.80 (8.01x) 1 0.0683 0 99.9 27 0.7722
Core 12 [19]: 782.84 (7.84x) 1 0.0837 0 99.9 27 0.7722
Core 13 [20]: 802.24 (8.04x) 1 0.0899 0 99.9 27 0.7722
Core 14 [21]: 790.34 (7.92x) 1 0.112 0 99.9 27 0.7722
Core 15 [22]: 787.87 (7.89x) 1 0.0848 0 99.9 27 0.7717
Core 16 [23]: 801.55 (8.03x) 1 0.162 0 99.8 27 0.7667
Core 17 [24]: 1538.17 (15.41x) 1 5.07 0 94.6 24 0.7717
Core 18 [25]: 1557.41 (15.60x) 1 4.16 0 95.7 24 0.7717
Core 19 [26]: 1313.84 (13.16x) 1 3.25 0 96.6 24 0.7717
Core 20 [27]: 2098.69 (21.02x) 1 3.46 0 96.4 24 0.7717
Core 21 [28]: 1303.24 (13.05x) 1 4.71 0 95 25 0.7717
Core 22 [29]: 1840.79 (18.44x) 1 3 0 96.7 25 0.7717
Core 23 [30]: 1502.66 (15.05x) 1 3.39 0 96.5 25 0.7717
Core 24 [31]: 1239.85 (12.42x) 1 3.56 0 96.2 25 0.7720
powertop
观察到底那个程序用的功耗高
不知道是如何实现的:
Summary: 553.4 wakeups/second, 0.0 GPU ops/seconds, 0.0 VFS ops/sec and 8.4% CPU use
Usage Events/s Category Description
3.9 ms/s 252.7 Timer tick_nohz_handler
3.1 ms/s 92.1 Interrupt [3] net_rx(softirq)
0.8 ms/s 50.9 kWork flush_to_ldisc
2.8 ms/s 39.2 Interrupt [7] sched(softirq)
5.6 ms/s 36.2 Process [PID 80729] viddy cat /proc/cpuinfo | grep MHz
198.3 s/s 13.7 kWork console_callback
492.2 s/s 9.8 Process [PID 459] [xfsaild/nvme0n1]
46.5 s/s 9.8 kWork toggle_allocation_gate
23.1 ms/s 0.00 Process [PID 80726] viddy cat /proc/cpuinfo | grep MHz
54.7 s/s 6.9 Timer inactive_task_timer
4.5 ms/s 4.9 Process [PID 41771] tmux
319.4 s/s 5.9 Process [PID 18] [rcu_preempt]
317.8 s/s 5.9 kWork handle_update
50.9 s/s 4.9 kWork psi_avgs_work
90.9 s/s 3.9 Process [PID 629] [irq/143-iwlwifi]
6.2 ms/s 1.0 Process [PID 524508] tokio-runtime-w
4.4 ms/s 1.0 Process [PID 524481] powertop
4.2 ms/s 1.0 Process [PID 524510] sh
cpupower
cpupower idle-info
sudo cpupower frequency-info -g governor
sudo cpupower frequency-set -g performance
实际上就是去设置:
- /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
- /sys/devices/system/cpu/cpu0/acpi_cppc/
msr ?
这个输出的含义还是需要理解的，这些数据都是从什么地方获取的?
是通过读取 msr 空间的吗?
sudo cpupower frequency-info
modprobe: FATAL: Module msr not found in directory /lib/modules/6.13.2
analyzing CPU 2:
driver: intel_pstate
CPUs which run at the same hardware frequency: 2
CPUs which need to have their fr
cpupower monitor
🧀 sudo cpupower monitor
[sudo] password for martins3:
| Nehalem || Mperf || Idle_Stats
CPU| C3 | C6 | PC3 | PC6 || C0 | Cx | Freq || POLL | C1_A | C2_A | C3_A
0| 0.00| 2.65| 0.00| 0.00|| 1.06| 98.94| 5483|| 0.00| 0.86| 2.98| 95.15
1| 0.00| 2.65| 0.00| 0.00|| 0.07| 99.93| 5475|| 0.00| 0.02| 0.66| 99.25
2| 0.00| 1.88| 0.00| 0.00|| 0.72| 99.28| 5488|| 0.01| 1.06| 2.84| 95.39
3| 0.00| 1.88| 0.00| 0.00|| 0.00|100.00| 5229|| 0.00| 0.00| 0.00| 99.99
4| 0.00| 1.01| 0.00| 0.00|| 0.57| 99.43| 5484|| 0.00| 0.93| 1.30| 97.15
5| 0.00| 1.01| 0.00| 0.00|| 0.00|100.00| 5275|| 0.00| 0.00| 0.00| 99.99
6| 0.00| 2.49| 0.00| 0.00|| 0.32| 99.68| 5490|| 0.00| 0.46| 3.47| 95.77
7| 0.00| 2.49| 0.00| 0.00|| 0.02| 99.98| 5475|| 0.00| 0.03| 0.00| 99.95
8| 0.00| 0.00| 0.00| 0.00|| 1.40| 98.60| 5504|| 0.01| 2.59| 0.22| 95.83
9| 0.00| 0.00| 0.00| 0.00|| 0.00|100.00| 5659|| 0.00| 0.00| 0.00| 99.99
10| 0.00| 5.22| 0.00| 0.00|| 0.79| 99.21| 5532|| 0.00| 1.04| 5.79| 92.41
11| 0.00| 5.22| 0.00| 0.00|| 0.02| 99.98| 5493|| 0.00| 0.00| 0.00| 99.99
12| 0.00| 2.56| 0.00| 0.00|| 2.02| 97.98| 5483|| 0.00| 0.65| 2.97| 94.38
13| 0.00| 2.56| 0.00| 0.00|| 0.00|100.00| 5270|| 0.00| 0.00| 0.00| 100.0
14| 0.00| 0.38| 0.00| 0.00|| 0.86| 99.14| 5465|| 0.00| 0.89| 1.36| 96.83
15| 0.00| 0.38| 0.00| 0.00|| 0.00|100.00| 5271|| 0.00| 0.00| 0.00| 100.0
16| 0.00| 96.64| 0.00| 0.00|| 0.46| 99.54| 4291|| 0.00| 0.21| 1.25| 98.10
17| 0.00| 96.26| 0.00| 0.00|| 0.35| 99.65| 4293|| 0.00| 0.63| 1.48| 97.57
18| 0.00| 97.14| 0.00| 0.00|| 0.58| 99.42| 4291|| 0.00| 0.28| 0.59| 98.57
19| 0.00| 95.97| 0.00| 0.00|| 0.68| 99.32| 4292|| 0.00| 1.02| 2.44| 95.89
20| 0.00| 96.45| 0.00| 0.00|| 1.10| 98.90| 4292|| 0.00| 0.35| 0.10| 98.47
21| 0.00| 96.63| 0.00| 0.00|| 0.72| 99.28| 4292|| 0.00| 0.28| 0.00| 99.01
22| 0.00| 96.61| 0.00| 0.00|| 0.34| 99.66| 4292|| 0.00| 0.56| 0.18| 98.94
23| 0.00| 96.66| 0.00| 0.00|| 0.40| 99.60| 4294|| 0.01| 0.74| 0.24| 98.64
24| 0.00| 97.44| 0.00| 0.00|| 0.08| 99.92| 4293|| 0.00| 0.08| 0.00| 99.86
25| 0.00| 99.30| 0.00| 0.00|| 0.67| 99.33| 4292|| 0.00| 0.00| 0.00| 99.34
26| 0.00| 96.53| 0.00| 0.00|| 0.10| 99.90| 4293|| 0.00| 0.86| 0.06| 98.99
27| 0.00| 99.98| 0.00| 0.00|| 0.01| 99.99| 4214|| 0.00| 0.00| 0.07| 99.93
28| 0.00| 99.98| 0.00| 0.00|| 0.01| 99.99| 4433|| 0.00| 0.00| 0.00|100.00
29| 0.00| 99.57| 0.00| 0.00|| 0.37| 99.63| 4293|| 0.00| 0.00| 0.00| 99.63
30| 0.00| 99.98| 0.00| 0.00|| 0.00|100.00| 4370|| 0.00| 0.00| 0.00| 100.0
31| 0.00| 99.74| 0.00| 0.00|| 0.22| 99.78| 4295|| 0.00| 0.00| 0.00| 99.78
本站所有文章转发 CSDN 将按侵权追究法律责任，其它情况随意。