cpu

  1. J

    Downfall: Another Intel CPU Hardware Vulnerability

    Seems like we got blessed with another CPU vulnerability, this time on Intel's side: https://downfall.page Better update your microcodes!
  2. D

    Determine if AVX2/AVX512 acceleration is used

    Valued forum members, I have hired a professional software engineer to program an image processing program whose processing algorithms could benefit from AVX CPU instructions. The software works exceptionally, and there is reason to believe that acceleration is taking place. I am curious if...
  3. T

    C++ Clang C++ CPU profiling on FreeBSD 12.3?

    Background I have experience developing primarily on Windows, and have used Microsoft Visual Studio's Performance Profiler to track down issues. Documentation includes step-by-step instructions and screenshots of example results. I have very little experience with either Linux or FreeBSD. Our...
  4. chrislg

    High temperature and fan speed

    I have a Dell Inspiron 15 5510 Laptop and everytime I try a live USB with FreeBSD 13.1 or 14-CURRENT or after a bare metal installation I notice increased fan speed and overheating of my laptop. The cpu temperature rises to 55-65 Celcius at rest. The same thing happens in Arch linux. Only in...
  5. G

    Boot hang with AMD Phenom II

    I have a Gigabyte GA-M68MT-S2P motherboard with an AMD Athlon II x4 640 cpu running FreeBSD 13.1-RELEASE-p3. I upgraded the cpu to a Phenom II x4 960T black edition and de system hang on boot showing this lines: acpi0: <GBT NVDAACPI> ACPI: Actual Package lenght (1) is larger than NumElements...
  6. sidetone

    Practical way to prevent runaway process from taking over?

    There's nice, and renice but any instructions I saw applied after a program is identified as being a runaway process. Is there a way to make a program or group be pre-determinately set to have a lower priority nice option? Adding the nice command to the menu item that launches an application...
  7. bstolk

    Alder Lake CPU

    When I upgraded my system from a 4th gen Intel CPU to a 12th gen Intel CPU, FreeBSD no longer booted. FreeBSD 13 stopped after printing EFI fb information. I tried integrated graphics, and Radeon graphics. Same halting point when booting from installation media, as well. So I tried FreeBSD...
  8. grahamperrin

    Code - OSS making excessive use of the CPU before and after quit

    Code - OSS a.k.a. Visual Studio Code a.k.a. VS Code a.k.a. VSCode – editors/vscode Before quit (Control-Q): After quit, excessive use persists. I can use htop to kill the process, however I'd prefer to diagnose the bug, if not too difficult. Any suggestions? TIA Postscript Difficult to...
  9. A

    jails Automatic rebalancing cpuset for jails

    Hi, I have searched on this forum and on internet without success so here is my question. I love jails and his flexibility but for a "hosting" service with clients on jails like vps I would like to limit the max number of cpu cores each jail can utilize on the server. I know about cpuset and I...
  10. sidetone

    Status of supported architectures

    32bit architectures were lowered to tier-2 support or removed. RISC-V and ARM architecture support was improved upstream. Sparc64 support was dropped, because it was the only architecture left not well supported by Clang. (From the latest issue of FreeBSD Journal.)...
  11. I

    "make buildworld" command to use multiple CPUs - possible?

    I notice that whenever I run make buildworld, it is using only a single CPU. Is it possible to make it use all the CPUs?
  12. A

    Solved Thermal information, reported by Intel processors

    There's a comment in the BUGS section of the OpenBSD cpu(4) man page: I'm wondering, whether * It's an Intel-specific bug, and both FreeBSD and OpenBSD have the same problem. OR * It's an OpenBSD specific problem, thus it doesn't apply to FreeBSD.
  13. Mjölnir

    Solved How can I see the real CPU frequency in Turbo mode (max freq + 1)?

    TIA
  14. M

    Get current CPU power consumption as a single reading

    On a 12.1-RELEASE system, I can use sysutils/powermon to display the current power use of the chosen CPU package. As per the powermon man page, "The powermon utility reads the CPU internal power counters, calculates the current power consumption and displays it on a nice curses interface." Is...
  15. F

    Single Thread Rating vs Multi Thread Rating

    Hello, guys! I'm totally noob about topic title, and I have one situation to get understood and solved. My hardware configuration: 2x E5-2450L 1.80 Ghz (2.30 Boosted) 96 GB RAM DDR3 ECC Samsung 860 EVO SSD My processes: Problem: There are between processes also auto-responders and they're...
  16. Leo L.

    Solved Intel NUC10 : Hardware support ?

    Hello, I'm planning to get an Intel NUC10i5FNK (https://www.intel.com/content/www/us/en/products/boards-kits/nuc/kits/nuc10i5fnk.html). But I was worried about this new hardware (especially CPU / GPU) supported by FreeBSD 12.1-RELEASE ? CPU : Intel® Core™ i5-10210U Processor. Intel® UHD...
  17. Sergei_Shablovsky

    How FreeBSD utilize multicore processors and multi-CPU systems?

    Hi, FreeBSD guru! How FreeBSD utilize multicore processors in ONE CPU systems ? How FreeBSD utilize multicore processors in multi-CPU systems ?
  18. goshanecr

    What is the right approach to build ports with i386 CPU features on a 64bit machine?

    Good day! I have a far placed (in a village), old PC based on a Pentium-III. And I want to generate a simple FreeBSD based system on it. How I do that: 1. On my home PC (Ryzen based), I'm start Virtualbox instance with FreeBSD 12-RELEASE i386. 2. I add CPUTYPE?=pentium3 on /etc/make.conf 3. I...
  19. Nicola Mingotti

    Solved How to get CPU(s) load as in "top", in C

    Hi, I am porting a C program from Linux To FreeBSD (wmmon FYI) and I would like to know how i can get cpu(s) load as I can read them from "top" command. I found in other posts here sysctl dev.cpu but that me gives always 100%. I would need to get what "top" calls { "user", "system"...
  20. IPTRACE

    bhyve - CPU, vCPU, cores nad threads

    Hello! Can someone explain how it works? I mean the following kernel options with optimal configuration. hw.vmm.topology.cores_per_package hw.vmm.topology.threads_per_core I've got 2 physical CPU with 10 cores with HT. So the FreeBSD shows 40 - CPU0-CPU39. Actually I use FreeBSD OS as VM but...
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