News: 0001599678

  ARM Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life (Terry Pratchett, Jingo)

Intel's Cache Aware Scheduling Presentation At LPC 2025

([Intel] 4 Hours Ago Cache Aware Scheduling)


One of the exciting Intel innovations to the Linux kernel this year has been around the [1]Cache Aware Scheduling for helping to deliver better performance on modern CPUs with multiple last level caches. The kernel patches have yet to be upstreamed but testing has shown to be quite promising for grouping tasks sharing data to the same LLC domain to help reduce cache misses and cache bouncing. Those wishing to learn more about Cache Aware Scheduling, there was a presentation on it last week by Intel engineers Tim Chen and Chen Yu at the Linux Plumbers Conference 2025 in Tokyo.

We've covered the progressing Cache Aware Scheduling series throughout the year and recently conducted new tests of [2]Cache Aware Scheduling on Intel Xeon 6 as well as [3]CAS also benefiting AMD EPYC performance .

For those wishing to learn more about Cache Aware Scheduling straight from the Intel engineers, below is the LPC 2025 video recording and there are also the [4]PDF slides .

Hopefully we see Cache Aware Scheduling make it to the mainline Linux kernel in 2026.



[1] https://www.phoronix.com/search/Cache%20Aware%20Scheduling

[2] https://www.phoronix.com/review/intel-xeon-6-cache-sched

[3] https://www.phoronix.com/review/cache-aware-scheduling-amd-turin

[4] https://lpc.events/event/19/contributions/2208/attachments/1755/3928/cache-aware-scheduling.pdf



Security Holes Found In Microsoft Easter Eggs

REDMOND, WA -- It's damage control time for the Microsoft Marketing
Machine. Not only have exploits been found in IE, Outlook, and even the
Dancing Paper Clip, but now holes have been uncovered in Excel's Flight
Simulator and Word's pinball game.

"If you enter Excel 97's flight simulator and then hit the F1, X, and
SysRq keys while reading a file from Drive A:, you automatically gain
Administrator rights on Windows NT," explained the security expert who
first discovered the problem. "And that's just the tip of the iceberg."

Office 97 and 2000 both contain two hidden DLLs, billrulez.dll and
eastereggs.dll, that are marked as "Safe for scripting" but are not.
Arbitrary Visual BASIC code can be executed using these files. More
disturbing, however, are the undocumented API calls
"ChangeAllPasswordsToDefault", "OpenBackDoor", "InitiateBlueScreenNow",
and "UploadRegistryToMicrosoft" within easter~1.dll.

Microsoft spokesdroids have already hailed the problem as "an
insignificant byproduct of Microsoft innovation."