USB4STREAM Adding Busy Poll Option For Lower Latency At The Cost Of Increased CPU Cycles
USB4STREAM Adding Busy Poll Option For Lower Latency At The Cost Of Increased CPU Cycles Written by Michael Larabel in Intel on 5 August 2026 at 05:27 PM EDT. Add A Comment One of the nifty new features of Linux 7.2 is USB4STREAM as an Intel-developed solution for quickly sending data between USB4 connected systems. Now for the upcoming Linux 7.3 cycle, a busy poll mode is being added to provide lower-latency data transfers at the expense of increased CPU activity.
- ▪USB4STREAM Adding Busy Poll Option For Lower Latency At The Cost Of Increased CPU Cycles Written by Michael Larabel in Intel on 5 August 2026 at 05:27 PM EDT.
- ▪Add A Comment One of the nifty new features of Linux 7.2 is USB4STREAM as an Intel-developed solution for quickly sending data between USB4 connected systems.
- ▪Now for the upcoming Linux 7.3 cycle, a busy poll mode is being added to provide lower-latency data transfers at the expense of increased CPU activity.
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| Original publisher | Phoronix |
| Canonical URL | https://www.phoronix.com/news/USB4STREAM-Lower-Latency |
| Publication time | Wed, 05 Aug 2026 17:27:47 -0400 |
| Retrieval time | 2026-08-05T21:35:47.486Z |
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USB4STREAM Adding Busy Poll Option For Lower Latency At The Cost Of Increased CPU Cycles Written by Michael Larabel in Intel on 5 August 2026 at 05:27 PM EDT. Add A Comment One of the nifty new features of Linux 7.2 is USB4STREAM as an Intel-developed solution for quickly sending data between USB4 connected systems. Now for the upcoming Linux 7.3 cycle, a busy poll mode is being added to provide lower-latency data transfers at the expense of increased CPU activity. Intel engineers developed the USB4STREAM protocol as a super simple way for transferring raw packets between hosts using USB4/Thunderbolt. Intel Thunderbolt expert Mika Westerberg with the assistance of Claude Opus 4.8 has devised a means of busy polling for USB4STREAM to provide lower latency transfers.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Phoronix.