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Phoronix

Patch Posted To Enable Intel FRED By Default On Linux

Following today's article exploring the performance benefits of Intel Flexible Return and Event Delivery "FRED" with Panther Lake and also pointing out the rather obscure nature of FRED being disabled-by-default, an Intel Linux kernel engineer posted a patch to now enable FRED by default for better performance...

LWN.net

[$] Tracking when BPF programs may sleep

BPF programs can run in both sleepable and non-sleepable (atomic) contexts. Currently, sleepable BPF programs are not allowed to enter an atomic context. Puranjay Mohan has a new patch set that changes that. The patch set would let BPF programs called in sleepable contexts temporarily acquire locks that cause the programs to transition to an atomic context. BPF maintainer Alexei Starovoitov objected to parts of the implementation, however, so acceptance of the patch depends on whether Mohan is willing and able to straighten it out.

Phoronix

Cloudflare Details Their Upgrade To EPYC Turin For 2x Throughput, 50% Better Perf/Watt

Cloudflare's technical blog posts about their hardware and software efforts are always a treat to read. Their latest fascinating technical content is on their newest "Gen 13" server platform based around AMD EPYC Turin where they are now achieving 2x throughput and 50% better performance-per-Watt thanks to these latest-generation AMD EPYC server processors paired with software improvements too...

LWN.net

Kernel prepatch 7.0-rc5

Linus has released 7.0-rc5 for testing. "It looks like things are starting to calm down - rc5 is smaller than the previous rc's this merge window, although it still tracks a bit larger than rc5s historically do."