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Linux 7.3 Network Changes Merged But Developers "Completely Overwhelmed" Due To AI/LLMs

All of the networking subsystem feature updates were merged today for the Linux 7.3 kernel's merge window. There are a lot of wired and wireless networking improvements this cycle but also a ton of bug fixes -- including many not so important fixes spun up by AI/LLM agents. The networking subsystem maintainers admit now they are "completely overwhelmed" due to this code churn from the output of AI large language models...
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Intel Hyper Threading Performance On The Xeon 678X "Granite Rapids-WS"

With the Intel Xeon 678X "Granite Rapids WS" processor that I have been recently testing within the HP Z4 G6i workstation, there are 48 cores plus with Hyper Threading is a total of 96 threads for this high-end workstation processor with a 300 Watt TDP. For those curious about the performance impact of HT/SMT on this Intel Xeon 600 series workstation processor, here are some comparison benchmarks.
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FSCRYPT Sees Cleanup With Linux 7.3 To Open Door For More Features Like Btrfs Encryption

FSCRYPT is the Linux file-system encryption framework for supporting per-directory, transparent encryption. FSCRYPT so far is used by the likes of EXT4, F2FS, and CephFS. For Linux 7.3 there is an important clean-up to the FSCRYPT code to simplify it while also opening the door for new features moving forward into future kernel versions...
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Linux 7.3 Cleans Up The Code For Disabling Of Legacy 32-bit Time Support

The Linux kernel has supported the CONFIG_COMPAT_32BIT_TIME Kconfig build time option for optionally disabling of legacy 32-bit time system call support. This is intended to disable the code that uses a 32-bit integer for time that is thus not Year 2038 safe, but at the cost of breaking compatibility for legacy 32-bit applications. Even if building without Linux 32-bit time support, it turns out some 32-bit time code persisted but that is now being fixed with Linux 7.3...
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Two Very Exciting Memory Management Optimizations Going Into Linux 7.3

Andrew Morton on Tuesday sent out all of the memory management "MM" updates for the Linux 7.3 merge window. The MM pull was particularly heavy as he noted 1,250 "added-to-MM" emails were sent out this cycle compared to 920 the prior cycle. With a lot of patch churn, he also turned to Google's Gemini AI for writing his patch summaries. In going through the very verbose AI-generated summary, there are two patch series that get me excited on the performance front with Linux 7.3...
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AMD EPYC 9005 Series Memory Scaling Performance From 4 To 24 DDR5 RDIMMs

With today's memory prices, a frequent question at Phoronix and throughout many organizations is about reducing cost by not necessarily populating all memory channels. Especially with modern servers going up to 12 memory channels per socket or even 16 memory channels with upcoming EPYC Venice, you may be curious about the performance impact of populating less memory channels to see if the trade-off is worthwhile given today's DDR5 RDIMM pricing. In this article are benchmarks from a Dell PowerEdge server looking at a dual AMD EPYC 9655 2P configuration when testing between four and the full twenty-four DDR5-6400 RDIMM configuration and the resulting performance impact in more than 250 benchmarks.
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PHP 7.4 To PHP 8.6 Benchmarks, PHP 8.6 JIT Performance

A Phoronix Premium supporter recently relayed a request to see some fresh PHP performance benchmarks. So here are some fresh numbers of PHP 7.4 through the latest PHP 8.5 code plus the current Git state of PHP 8.6 ahead of the official PHP 8.6.0 release later in the year. With PHP 8.6 is also a fresh look at the JIT performance enabled too...
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