A document describes techniques that are useful for debugging suspend and resume issues with modern #AMD processors was merged for #Linux 6.16: https://git.kernel.org/torvalds/c/cafb22242bfb7fad10fde6f9b99853fc924e691a

Rendered version: https://origin.kernel.org/doc/html/next/arch/x86/amd-debugging.html

So I guess I am building a super computer… Raspberry Pi for scale.

Thanks Wendell!

4am AMD Xorg/Kernel Debugging

Ongoing fun ongoes, so much so. This iteration receives triple output: tty video (Display Port), COM1 redirect via DB9 to laptop running minicom, COM2 to the usual BMC SoL terminal watched from ipmitool on adjacent laptop.

Coming up, rebooting into GENERIC-DEBUG kernel rebuilt with remote GDM (kgdb) access via the COM1 link to laptop.

The Compelling #AVX512 Performance Advantage On #AMD #EPYC 9005 "Turin"
Workloads tested on this #EPYC9655 Supermicro server, with AVX-512 yielded 1.57x the performance of the same hardware/software but with AVX-512 forced off.
https://www.phoronix.com/review/amd-epyc-turin-avx512

Snipesearch toot is part way through an #EPYC upgrade doubling memory storage and CPU cores available while updating our instance,

How to Run DeepSeek R1 671B Locally on a $2000 EPYC Server: https://digitalspaceport.com/how-to-run-deepseek-r1-671b-fully-locally-on-2000-epyc-rig/ #linux #llm #deepseek #r1 #epyc #server #selfhosted

SiH²O, TECs, AMD, PPC

Have you ever used a 'thermo-electric cooler' (aka Peltier device)? Have you used one on an AMD Socket AM5, and not burned down the system or frozen cooling lines? If so, I'd love to hear experiences!

I'm considering the above on a hypothesis/PoC sorta basic, insofar as exploring the options for a potential application during restoration of my watercooled PowerMac G5 (4C PPC-970MP).

The last time I looked into TECs was at the start of the water-cooling wars in 1999... assumptions assume that the landscape is more efficient and less slap-together.

AMD вперше обійшла Intel на ринку ЦОД — але NVIDIA заробила у рази більше https://itc.ua/ua/novini/amd-vpershe-obijshla-intel-na-rynku-tsod-ale-nvidia-zarobyla-u-razy-bilshe/ #Технології #IT-бізнес #Процесори #Пристрої #Новини #NVIDIA #Intel #EPYC #Xeon #AMD

#AMD #EPYC 9755 Performance On The #Linux 6.11 & 6.12 Kernel
In many of the larger, real-world workloads there were minimal to small changes while in more of the micro-benchmarks and other focused areas there were some nice gains observed with Linux 6.11/6.12. With Linux 6.12 expected to be this year's LTS kernel version, it will find use by hyperscalers and other large organizations that tend to jump between the #LTS kernel versions.
https://www.phoronix.com/news/AMD-EPYC-9755-Linux-6.11-6.12

The time when #INTEL dominated CPU performance are LONG gone.

First, raw data.

AMD EPYC 9755
128C/256T
12984 USD
https://amd.com/en/products/processors/server/epyc/9005-series/amd-epyc-9755.html

INTEL XEON 6980p
128C/256T
17800 USD
https://ark.intel.com/content/www/us/en/ark/products/240777/-processor-504m-cache-2-00-ghz.html

Now ...

Recent comparison between 128C/256T offerings from both #AMD and #INTEL shows that #AMD CPU is 40% faster then #INTEL CPU.

Average power usage of both CPUs were VERY similar with 322W for #INTEL and 324W for #AMD.

Peak pwoer value is different and #AMD tops at 500W while #INTEL tops at 547W power.

But that is not end of #INTEL misery ... while #INTEL #XEON 6980p CPU costs $17800 - #AMD #EPYC 9755 CPU costs $12984.

That means that its price/performance ratio is multiplied by another 0.7 factor.

So TOTAL/REAL #AMD CPU price/performance ratio compared to the same #INTEL CPU is 70% better for #AMD.

Когда узнал от друга про некий AMD EPYC 4004 под сокет AM5 и пошёл посмотреть на Ozon.

The NEW #Synology #DP7400 will soon arrive for testing! Let's see what this #AMD #EPYC appliance can do with its #ActiveProtectManager OS.

#AMD #EPYC 4004 series is mighty impressive. Faster, cheaper *and* more efficient than Intel Xeon. There's even unofficial support for running it on consumer #AM5 boards. https://www.phoronix.com/review/amd-epyc-4004

#AMD Confirms #Zen5 #CPU Now Sampling: Turin "EPYC" & Strix "Ryzen" Launching In 2H 2024
AMD seems to be betting it all on #Datacenter in #2024 by accelerating their #EPYC CPU and Instinct #GPU roadmaps. On CPU side, AMD Zen 5 core architecture will play a big role which will be powering two major product families, the EPYC "Turin" and Ryzen "Strix". These two chips are said to be sampling to partners now and launch is expected sometime in the second half of this year.
https://wccftech.com/amd-confirms-zen-5-cpus-now-sampling-turin-epyc-strix-ryzen-launch-2h-2024/

#AMD discloses slew of high severity #security #vulnerabilities for #Zen systems, from the original Zen chips to the latest #Zen4 #CPU, that attacks #BIOS chips, we finally have a #Zenbleed fix. AMD is patching the vulnerabilities through new versions of #AGESA, for #Zen2-based chips, in particular, many of these new AGESAs also patch Zenbleed, including #Epyc #Server chips https://bit.ly/3I1JKds https://www.tomshardware.com/pc-components/cpus/amd-discloses-slew-of-high-severity-security-vulnerabilities-for-zen-chips-that-attack-bios-chips-updates-aim-to-patch-bugs-finally-fix-zenbleed

This “laptop” has a 64-core AMD EPYC processor #Amd, #AmdEpyc, #Crowdfunding, #Epyc, #Laptops, #REV9Series

https://liliputing.com/this-laptop-has-a-64-core-amd-epyc-processor/