Tails 6.9 does not see hyper thread cores?

[TechNot]

My laptop (Thinkpad t440p) is running Mint 21.3. With hyper threading activated in the bios the system monitor shows 4 cores.
When i plug in the USB with Tails 6.9 on it the system monitor on Tails only shows 2 cores.
Is this something that can be turned on in the Tails OS or boot option or am i looking for an unnecessary performance feature.

 

[The Duck]

Open the terminal and copy and paste

inxi -Fxz

and press enter and copy and paste the output in a post.

 

[TechNot]

you want that from the terminal in Mint on the laptop or Tails on the USB ?

 

[Aristarchus]

Hyperthreading is not secure so Tails OS as secure OS may be disabling ht.
There are ways to disabe HT. One very simple and popular method is to append to the kernel line in grub
noht
Just inspect grub and remove
noht
from append line
Unfortunately there are other ways to disable hyperthreading so you may need to consult Tail OS if this is in fact the case (purposely disabling HT)

 

[The Duck]

you want that from the terminal in Mint on the laptop or Tails on the USB ?

Open the terminal and copy and paste

inxi -Fxz

and press enter and copy and paste the output in a post.

From inside of the terminal.

Need to know what processor you are running to find out if Hyper threading is even supported.

And I also 2nd @Aristarchus about disabling Hyper threading and that may be why it's not enabled if supported.

You should be able to disable Hyper threading within the system bios.

 

[GatorsFan]

Tails OS and Qubes both disable hyperthreading which does impact performance by about 20% or so on a hyperthreaded CPU, if you do not have hyperthreading then this is not a factor; but is implemented to minimize vulnerabilities and disabling hyperthreading is the only way to mitigate Zombie-Load on current hardware
Tails main goal is to allow users to do computation on a machine in a way that doesn’t leave in trace on that system. This requires that the hardware in the system is trusted, which unfortunately is not the case for many user

 

[TechNot]

Thank you @GatorsFan for that explanation.


As for you @The Duck ... here is your requested output from Mint Linux on the Laptop:

System:
Kernel: 5.15.0-124-generic x86_64 bits: 64 compiler: gcc v: 11.4.0
Desktop: Cinnamon 6.0.4 Distro: Linux Mint 21.3 Virginia
base: Ubuntu 22.04 jammy
Machine:
Type: Laptop System: LENOVO product: 20AN00DEUS v: ThinkPad T440p
serial: <superuser required>
Mobo: LENOVO model: 20AN00DEUS v: SDK0E50510 WIN
serial: <superuser required> UEFI: LENOVO v: GLETA2WW (2.56 )
date: 07/16/2021
Battery:
ID-1: BAT0 charge: 45.7 Wh (97.0%) condition: 47.1/56.2 Wh (83.9%)
volts: 12.2 min: 10.8 model: LGC 45N1147 status: Not charging
Device-1: hidpp_battery_0 model: Logitech ERGO M575 Trackball charge: 50%
status: Discharging
CPU:
Info: dual core model: Intel Core i5-4210M bits: 64 type: MT MCP
arch: Haswell rev: 3 cache: L1: 128 KiB L2: 512 KiB L3: 3 MiB
Speed (MHz): avg: 998 high: 1597 min/max: 800/3200 cores: 1: 1597 2: 800
3: 798 4: 799 bogomips: 20754
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Graphics:
Device-1: Intel 4th Gen Core Processor Integrated Graphics
vendor: Lenovo ThinkPad T440p driver: i915 v: kernel bus-ID: 00:02.0
Device-2: Chicony Integrated Camera type: USB driver: uvcvideo
bus-ID: 3-12:4
Display: x11 server: X.Org v: 1.21.1.4 driver: X: loaded: modesetting
unloaded: fbdev,vesa gpu: i915 resolution: 1280x720~60Hz
OpenGL: renderer: Mesa Intel HD Graphics 4600 (HSW GT2)
v: 4.6 Mesa 23.2.1-1ubuntu3.1~22.04.2 direct render: Yes
Audio:
Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio
vendor: Lenovo ThinkPad T440p driver: snd_hda_intel v: kernel
bus-ID: 00:03.0
Device-2: Intel 8 Series/C220 Series High Definition Audio
vendor: Lenovo ThinkPad T440p driver: snd_hda_intel v: kernel
bus-ID: 00:1b.0
Sound Server-1: ALSA v: k5.15.0-124-generic running: yes
Sound Server-2: PulseAudio v: 15.99.1 running: yes
Sound Server-3: PipeWire v: 0.3.48 running: yes
Network:
Device-1: Intel Ethernet I217-LM vendor: Lenovo ThinkPad T440p
driver: e1000e v: kernel port: 3080 bus-ID: 00:19.0
IF: enp0s25 state: down mac: <filter>
Device-2: Intel Wireless 7260 driver: iwlwifi v: kernel bus-ID: 03:00.0
IF: wlp3s0 state: up mac: <filter>
Drives:
Local Storage: total: 223.57 GiB used: 148.01 GiB (66.2%)
ID-1: /dev/sda vendor: Lexar model: 240GB SSD size: 223.57 GiB
Partition:
ID-1: / size: 108.95 GiB used: 86.02 GiB (78.9%) fs: ext4 dev: /dev/sda5
ID-2: /boot/efi size: 96 MiB used: 31.1 MiB (32.4%) fs: vfat
dev: /dev/sda1
Swap:
ID-1: swap-1 type: file size: 2 GiB used: 77.2 MiB (3.8%) file: /swapfile
Sensors:
System Temperatures: cpu: 51.0 C mobo: N/A
Fan Speeds (RPM): fan-1: 0
Info:
Processes: 236 Uptime: 22h 17m Memory: 7.64 GiB used: 2.38 GiB (31.2%)
Init: systemd runlevel: 5 Compilers: gcc: 11.4.0 Packages: 2263 Shell: Bash
v: 5.1.16 inxi: 3.3.13
doubbleshot@FireStarter:~$

 

[TechNot]

for the record the output thru Tails on the USB:

mnesia@amnesia:~$ inxi -Fxz
bash: inxi: command not found
amnesia@amnesia:~$