The trade-off is performance. Every syscall goes through user-space interception, which adds overhead. I/O-heavy workloads feel this the most. For short-lived code execution like scripts and tests, it is usually fine, but for sustained high-throughput I/O, it can matter.
tee() splits a stream into two branches. It seems straightforward, but the implementation requires buffering: if one branch is read faster than the other, the data must be held somewhere until the slower branch catches up.
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Beyond the new streaming option, Microsoft is also making improvements to the Xbox PC app and the Xbox experience on ROG Xbox Ally handhelds. On PC, the Xbox PC app now includes "navigation sounds" that play when you use the app's interface with a controller. These new sounds are supposed to make controller input feel more responsive and intuitive. On the ASUS ROG Xbox Ally and Xbox Ally X, meanwhile, Microsoft is making it even easier to format removable storage like microSD cards, and updating drivers to improve compatibility on select games.
The US has been accused of “shameless exploitation” over a health financing agreement with Zambia worth more than $1bn (£740m), amid warnings that the country is getting a raw deal from the Trump administration.
People are being encouraged to open up about their mental health at events as part of Time to Talk Day 2026.