Intel Performance Limit Reasons For Linux To Report Why Your CPU Is Downclocking

[phoronix]

Phoronix: Intel Performance Limit Reasons For Linux To Report Why Your CPU Is Downclocking

Intel Performance Limit Reasons (PLR) can indicate why your CPU is downclocking / limited to a lower performance limit for a given core or die. With some Windows utilities this information this Intel CPU feature has been available there while now Intel is bringing PLR support to Linux too...

https://www.phoronix.com/news/Intel-Perf-Limit-Reasons-Linux

[mxan]

Torvalds freakout about yet another Intel three-letter acronym in 3, 2, 1...

[avis]

Torvalds freakout about yet another Intel three-letter acronym in 3, 2, 1...

I'm 100% against new acronyms/abbreviations for /sys or anywhere else in Linux for that matter.

We are in 2024 for Christ's sake. The worst embedded devices now come with at least 128MB of RAM - there's enough memory to use complete English words.

[pWe00Iri3e7Z9lHOX2Qx]

1. Too hot
2. Much too hot
3. Roasting

[coder]

Wow, I sure hope this gets added to turbostat!

[coder]

I'm 100% against new acronyms/abbreviations for /sys or anywhere else in Linux for that matter.

I pretty much agree. Names should be clear, unambiguous, and the shortest names/abbreviations/initialisms should generally be reserved for the most frequent and fundamental concepts (similar idea to Huffman coding). Along these lines, I also tend to make type names longer than variable names, as type name have less locality and variable names are referenced more frequently.

https://www.amazon.com/gp/product/B0BTLYZWRL/

We are in 2024 for Christ's sake. The worst embedded devices now come with at least 128MB of RAM - there's enough memory to use complete English words.

It's not about memory, but typing and screen space. Especially if you're using some antiquated 80 column line length limit, long names become rather problematic. I'd approach these issues from both sides. First, a modest increase in maximum line length, accepting that many of us like to view files & diffs side-by-side, so maybe still don't go too much above 100 columns. Then, an accepted dictionary of abbreviations, so we aren't typing out entire words like "performance", when literally nobody would mistake "perf" for anything other than that.

[NotMine999]

1. Too hot
2. Much too hot
3. Roasting

Those sound like the performance level names that Intel Marketing decided not to use.

[EphemeralEft]

1. Too hot
2. Much too hot
3. Roasting

• Too hot
• Too cheap
• Too old
• Too new

[ddriver]

Brought to you by the brilliant tech corporation, which believes the solution to its inability to design good chips is adopting next gen lytho equipment before it is economically viable, and its most competitive strategy has been to outbid amd for production capacity and waste it producing junk nobody wants...

[coder]

Brought to you by the brilliant tech corporation, which believes the solution to its inability to design good chips is adopting next gen lytho equipment before it is economically viable,

Huh? Intel's 10 nm node (AKA "Intel 7") is DUV, while TSMC and Samsung had already moved on to EUV. Intel didn't reach EUV until "Intel 4", first seen in the underwhelming Meteor Lake.