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One would expect Intel to do periodic regression tests on Linux kernel releases on their hardware. A lot of Intel customers use Linux, and they may switch to ot

by andix 4y ago

One would expect Intel to do periodic regression tests on Linux kernel releases on their hardware. A lot of Intel customers use Linux, and they may switch to other vendors if Intel hardware has bad Linux support.

arghwhat 4y ago
They do, and they provide some of the most extensive regression testing capabilities provides to kernel development. But to be fair, this is an old NIC with a hardware bug that requires an odd workaround disabling an otherwise very useful performance feature. Missing that edge case is understandable.
- justinclift 4y ago
  Hmmm, that doesn't really seem to gel though, unless their extensive regression testing is a recent development? Saying that because at some point, that NIC was a new thing, not an old one. So extensive regression testing should have picked it up then, yeah?
  - arghwhat 4y ago
    https://www.intel.com/content/www/us/en/developer/topic-technology/open/linux-kernel-performance/overview.html https://www.intel.com/content/www/us/en/developer/topic-tech... It is not a new thing, but no test is exhaustive and they must prioritize hardware tested for practical reasons. This particular test would need to check if the working NIC could reach full gigabit speeds in TX, as everything else checked out. Regardless, it cannot be said that they do not have regression testing or are irresponsible in that sense, as they provide important services to the community in exactly this area.
    - justinclift 4y ago
      > This particular test would need to check if the working NIC could reach full gigabit speeds in TX, as everything else checked out. To me, that sounds weird. My expectation is that every non-dodgy manufacturer of a network device would test the features they're developing. So, when (say) offloading support of some variety is newly added to a chip set, whoever is adding that support would be testing it at the full speed of the device. If the developers aren't verifying the things they're adding work (somehow), there's something wrong. :(
asddgsgsaxg 4y ago
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by andix 4y ago

arghwhat 4y ago

They do, and they provide some of the most extensive regression testing capabilities provides to kernel development. But to be fair, this is an old NIC with a hardware bug that requires an odd workaround disabling an otherwise very useful performance feature. Missing that edge case is understandable.

justinclift 4y ago
Hmmm, that doesn't really seem to gel though, unless their extensive regression testing is a recent development? Saying that because at some point, that NIC was a new thing, not an old one. So extensive regression testing should have picked it up then, yeah?
- arghwhat 4y ago
  https://www.intel.com/content/www/us/en/developer/topic-technology/open/linux-kernel-performance/overview.html https://www.intel.com/content/www/us/en/developer/topic-tech... It is not a new thing, but no test is exhaustive and they must prioritize hardware tested for practical reasons. This particular test would need to check if the working NIC could reach full gigabit speeds in TX, as everything else checked out. Regardless, it cannot be said that they do not have regression testing or are irresponsible in that sense, as they provide important services to the community in exactly this area.
  - justinclift 4y ago
    > This particular test would need to check if the working NIC could reach full gigabit speeds in TX, as everything else checked out. To me, that sounds weird. My expectation is that every non-dodgy manufacturer of a network device would test the features they're developing. So, when (say) offloading support of some variety is newly added to a chip set, whoever is adding that support would be testing it at the full speed of the device. If the developers aren't verifying the things they're adding work (somehow), there's something wrong. :(

asddgsgsaxg 4y ago

[dead]