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Lustre Arm64 CI: Switch to the 4K Page size Arm64 CI Environment

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Description

More and more operation system now are changing its pagesize to 4K on Arm64. The Centos 9 now by default pagesize is 4K, while the default page size on Centos 8 is 64K previously. For 64K pagesize, even at some time it can achieve some performance benefits, the most challenges for the software developers and users are all the upper level software should adopt the new page size, which induce a heavy software modification.

Starting from Centos 9 stream, the default page size is 4K. Besides, the default page size for Debian/Ubuntu and OpenEuler are also 4K.

For Lustre, it is a kernel mode file system and it has been already done several code change to suitable for the page size compatibility, and the 64K page size is usually induces some bugs when we play with Lustre. From the development and production perceptive, now we can see that bind with 4K should be enough, and it will reduce more effort for page size compatibility and doing more work for performance optimization on Arm64.

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Created April 10, 2023 at 1:43 PM
Updated July 5, 2023 at 3:28 AM
Resolved July 5, 2023 at 3:28 AM

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Kevin Zhao May 22, 2023 at 8:21 AM

TODO: Add to openstack cluster

Kevin Zhao May 22, 2023 at 8:20 AM

tx215/rack3-thx2-03

j13-switch-01 24

1T 400G nvme 480G ssd

10.101.100.42

 

10.41.24.155

tx214/rack3-thx2-04

j13-switch-01 23

1T 480G

10.40.88.183

 

10.41.24.154

tx213/rack3-thx2-05

j13-switch-01 22

480G ssd

10.40.88.184

 

10.41.24.153

Xinliang Liu May 22, 2023 at 4:35 AM

Maybe switch to test openEuler 22.03 LTS which is 4K page size.

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