Re: [PATCH 2/2] ai: add multi-filesystem testing support for Milvus benchmarks

[Luis Chamberlain <mcgrof@kernel.org>]

On Wed, Aug 27, 2025 at 10:47:51AM -0400, Chuck Lever wrote:
> On 8/27/25 5:32 AM, Luis Chamberlain wrote:
> > Extend the AI workflow to support testing Milvus across multiple
> > filesystem configurations simultaneously. This enables comprehensive
> > performance comparisons between different filesystems and their
> > configuration options.
> > 
> > Key features:
> > - Dynamic node generation based on enabled filesystem configurations
> > - Support for XFS, EXT4, and BTRFS with various mount options
> > - Per-filesystem result collection and analysis
> > - A/B testing across all filesystem configurations
> > - Automated comparison graphs between filesystems
> > 
> > Filesystem configurations:
> > - XFS: default, nocrc, bigtime with various block sizes (512, 1k, 2k, 4k)
> > - EXT4: default, nojournal, bigalloc configurations
> > - BTRFS: default, zlib, lzo, zstd compression options
> > 
> > Defconfigs:
> > - ai-milvus-multifs: Test 7 filesystem configs with A/B testing
> > - ai-milvus-multifs-distro: Test with distribution kernels
> > - ai-milvus-multifs-extended: Extended configs (14 filesystems total)
> > 
> > Node generation:
> > The system dynamically generates nodes based on enabled filesystem
> > configurations. With A/B testing enabled, this creates baseline and
> > dev nodes for each filesystem (e.g., debian13-ai-xfs-4k and
> > debian13-ai-xfs-4k-dev).
> > 
> > Usage:
> >   make defconfig-ai-milvus-multifs
> >   make bringup    # Creates nodes for each filesystem
> >   make ai         # Setup infrastructure on all nodes
> >   make ai-tests   # Run benchmarks on all filesystems
> >   make ai-results # Collect and compare results
> > 
> > This enables systematic evaluation of how different filesystems and
> > their configurations affect vector database performance.
> > 
> > Generated-by: Claude AI
> > Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
> 
> Hey Luis -
> 
> I'm looking at adding "AI optimized" and "GPU optimized" machine size
> choices in the cloud provider Kconfigs. I assume this set can take
> advantage of those. Any suggestions, or let me know if I'm way off base.

That would be next to add variability support, so patches welcomed
on top! Some docs:

https://milvus.io/docs/v2.3.x/install_standalone-helm-gpu.md
https://milvus.io/docs/gpu_index.md
https://milvus.io/docs/gpu-cagra.md

  Luis