Linux kernel 7.2 has been released, adding cache-aware scheduling, ext4 filesystem performance boosts and a slew of new and improved hardware drivers for laptops and peripherals. A merge widow record was also set during the 9-week development cycle, with more than 2,100 individual contributors involved. AI, obviously, has helped. Commit-crunching by LWN found roughly 5% of commits in 7.2 have an βassisted-byβ tag, indicating AI usage. Not that the latest kernel update was all additions. More than 13,000 lines of code for legacy i486 CPU emulation were removed from Linux 7.2, as was a 40-year-old Hercules graphics card driver, AppleTalk [β¦]
Linux kernel 7.2 has been released, adding cache-aware scheduling, ext4 filesystem performance boosts and a slew of new and improved hardware drivers for laptops and peripherals. A merge widow record was also set during the 9-week development cycle, with more than 2,100 individual contributors involved. AI, obviously, has helped. Commit-crunching by LWN found roughly 5% of commits in 7.2 have an βassisted-byβ tag, indicating AI usage. Not that the latest kernel update was all additions. More than 13,000 lines of code for legacy i486 CPU emulation were removed from Linux 7.2, as was a 40-year-old Hercules graphics card driver, AppleTalk [β¦]
As the Steam Deck slowly marches toward its fifth birthday next February, owners are likely eager for a way to extend its life rather than investing in expensive high-end competition. A new patch for AMD's Linux drivers could substantially reduce low-end frame hitches when the Steam Deck or other AMD-based gaming hardware is running in Energy Performance Preference (EPP) mode.
Writing on the Linux kernel mailing list (thanks, Phoronix), kernel coder David Vernet lays out the basic problem that games often face in EPP mode. When a busy thread frequently goes to sleep for short periods, the current AMD driver can misinterpret that behavior as a signal to lower its average performance target. When those threads wake up, they start at a lower-than-desired frequency, leading to increased frame latency, stale frames, and longer frame generation times at the low end of the distribution.
Shifting the processor to "performance" mode fixes this problem but eliminates the energy savings that EPP mode is supposed to provide. And simply boosting the affected thread's minimum performance target permanently actually makes low-end performance worse, thanks to the complexities of CPU/GPU boost management.
Linux 7.1 arrives with a rewritten NTFS driver, Apple Silicon battery reporting, and Steam Deck OLED audio fixes alongside massive legacy code removals.
Linux 7.1 arrives with a rewritten NTFS driver, Apple Silicon battery reporting, and Steam Deck OLED audio fixes alongside massive legacy code removals.