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Title: Ubuntu To Disable Intel Graphics Security Mitigations To Boost GPU
Performance By Up To 20%

Link: https://news.slashdot.org/story/25/06/23/2046...

Disabling Intel graphics security mitigations in GPU compute stacks for
OpenCL and Level Zero can yield a performance boost of up to 20%, prompting
Ubuntu's Canonical and Intel to disable these mitigations in future Ubuntu
packages. Phoronix's Michael Larabel reports: Intel does allow building their
GPU compute stack without these mitigations by using the
"NEO_DISABLE_MITIGATIONS" build option and that is what Canonical is looking
to set now for Ubuntu packages to avoid the significant performance impact.
This work will likely all be addressed in time for Ubuntu 25.10. This
NEO_DISABLE_MITIGATIONS option is just for compiling the Intel Compute
Runtime stack and doesn't impact the Linux kernel security mitigations or
else outside of Intel's "NEO" GPU compute stack. Both Intel and Canonical are
in agreement with this move and it turns out that even Intel's GitHub binary
packages for their Compute Runtime for OpenCL and Level Zero ship with the
mitigations disabled due to the performance impact. This Ubuntu Launchpad bug
report for the Intel Compute Runtime notes some of the key takeaways. There
is also this PPA where Ubuntu developers are currently testing their Compute
Runtime builds with NEO_DISABLE_MITIGATIONS enabled for disabling the
mitigations.

Read more of this story at Slashdot.

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