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ai: add multi-filesystem testing support for Milvus benchmarks
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 <[email protected]>
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‎Makefile‎

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@@ -226,7 +226,7 @@ include scripts/bringup.Makefile
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endif
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DEFAULT_DEPS += $(ANSIBLE_INVENTORY_FILE)
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$(ANSIBLE_INVENTORY_FILE): .config $(ANSIBLE_CFG_FILE) $(KDEVOPS_HOSTS_TEMPLATE)
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$(ANSIBLE_INVENTORY_FILE): .config $(ANSIBLE_CFG_FILE) $(KDEVOPS_HOSTS_TEMPLATE) $(KDEVOPS_NODES)
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$(Q)ANSIBLE_LOCALHOST_WARNING=False ANSIBLE_INVENTORY_UNPARSED_WARNING=False \
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ansible-playbook $(ANSIBLE_VERBOSE) \
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$(KDEVOPS_PLAYBOOKS_DIR)/gen_hosts.yml \

‎defconfigs/ai-milvus-multifs‎

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CONFIG_GUESTFS=y
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CONFIG_LIBVIRT=y
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# Disable mirror features for CI/testing
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# CONFIG_ENABLE_LOCAL_LINUX_MIRROR is not set
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# CONFIG_USE_LOCAL_LINUX_MIRROR is not set
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# CONFIG_INSTALL_ONLY_GIT_DAEMON is not set
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# CONFIG_MIRROR_INSTALL is not set
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CONFIG_WORKFLOWS=y
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CONFIG_WORKFLOW_LINUX_CUSTOM=y
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CONFIG_BOOTLINUX=y
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CONFIG_BOOTLINUX_9P=y
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# Enable A/B testing with different kernel references
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CONFIG_KDEVOPS_BASELINE_AND_DEV=y
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CONFIG_BOOTLINUX_AB_DIFFERENT_REF=y
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# AI workflow configuration
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CONFIG_WORKFLOWS_TESTS=y
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CONFIG_WORKFLOWS_LINUX_TESTS=y
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CONFIG_WORKFLOWS_DEDICATED_WORKFLOW=y
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CONFIG_KDEVOPS_WORKFLOW_DEDICATE_AI=y
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# Vector database configuration
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CONFIG_AI_TESTS_VECTOR_DATABASE=y
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CONFIG_AI_VECTOR_DB_MILVUS=y
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CONFIG_AI_VECTOR_DB_MILVUS_DOCKER=y
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# Enable multi-filesystem testing
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CONFIG_AI_MULTIFS_ENABLE=y
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CONFIG_AI_ENABLE_MULTIFS_TESTING=y
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# Enable dedicated Milvus storage with node-based filesystem
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CONFIG_AI_MILVUS_STORAGE_ENABLE=y
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CONFIG_AI_MILVUS_USE_NODE_FS=y
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# Test XFS with different block sizes
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CONFIG_AI_MULTIFS_TEST_XFS=y
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CONFIG_AI_MULTIFS_XFS_4K_4KS=y
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CONFIG_AI_MULTIFS_XFS_16K_4KS=y
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CONFIG_AI_MULTIFS_XFS_32K_4KS=y
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CONFIG_AI_MULTIFS_XFS_64K_4KS=y
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# Test EXT4 configurations
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CONFIG_AI_MULTIFS_TEST_EXT4=y
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CONFIG_AI_MULTIFS_EXT4_4K=y
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CONFIG_AI_MULTIFS_EXT4_16K_BIGALLOC=y
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# Test BTRFS
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CONFIG_AI_MULTIFS_TEST_BTRFS=y
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CONFIG_AI_MULTIFS_BTRFS_DEFAULT=y
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# Performance settings
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CONFIG_AI_BENCHMARK_ENABLE_GRAPHING=y
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CONFIG_AI_BENCHMARK_ITERATIONS=5
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# Dataset configuration for benchmarking
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CONFIG_AI_VECTOR_DB_MILVUS_DATASET_SIZE=100000
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CONFIG_AI_VECTOR_DB_MILVUS_BATCH_SIZE=10000
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CONFIG_AI_VECTOR_DB_MILVUS_NUM_QUERIES=10000
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# Container configuration
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CONFIG_AI_VECTOR_DB_MILVUS_CONTAINER_IMAGE_2_5=y
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CONFIG_AI_VECTOR_DB_MILVUS_MEMORY_LIMIT="8g"
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CONFIG_AI_VECTOR_DB_MILVUS_CPU_LIMIT="4.0"

‎defconfigs/ai-milvus-multifs-distro‎

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# AI Multi-Filesystem Performance Testing Configuration (Distro Kernel)
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# This configuration enables testing AI workloads across multiple filesystem
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# configurations including XFS (4k and 16k block sizes), ext4 (4k and 16k bigalloc),
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# and btrfs (default profile) using the distribution kernel without A/B testing.
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# Base virtualization setup
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CONFIG_LIBVIRT=y
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CONFIG_LIBVIRT_MACHINE_TYPE_Q35=y
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CONFIG_LIBVIRT_STORAGE_POOL_PATH="/opt/kdevops/libvirt"
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CONFIG_LIBVIRT_ENABLE_LARGEIO=y
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CONFIG_LIBVIRT_EXTRA_STORAGE_DRIVE_NVME=y
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CONFIG_LIBVIRT_EXTRA_STORAGE_DRIVE_SIZE="50GiB"
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# Network configuration
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CONFIG_LIBVIRT_ENABLE_BRIDGED_NETWORKING=y
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CONFIG_LIBVIRT_NET_NAME="kdevops"
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# Host configuration
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CONFIG_KDEVOPS_HOSTS_TEMPLATE="hosts.j2"
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CONFIG_VAGRANT_NVME_DISK_SIZE="50GiB"
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# Base system requirements
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CONFIG_WORKFLOWS=y
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CONFIG_WORKFLOWS_TESTS=y
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CONFIG_WORKFLOWS_LINUX_TESTS=y
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CONFIG_WORKFLOWS_DEDICATED_WORKFLOW=y
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CONFIG_KDEVOPS_WORKFLOW_DEDICATE_AI=y
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# AI Workflow Configuration
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CONFIG_KDEVOPS_WORKFLOW_ENABLE_AI=y
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CONFIG_AI_TESTS_VECTOR_DATABASE=y
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CONFIG_AI_MILVUS_DOCKER=y
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CONFIG_AI_VECTOR_DB_TYPE_MILVUS=y
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# Milvus Configuration
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CONFIG_AI_MILVUS_HOST="localhost"
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CONFIG_AI_MILVUS_PORT=19530
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CONFIG_AI_MILVUS_DATABASE_NAME="ai_benchmark"
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# Test Parameters (optimized for multi-fs testing)
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CONFIG_AI_BENCHMARK_ITERATIONS=3
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CONFIG_AI_DATASET_1M=y
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CONFIG_AI_VECTOR_DIM_128=y
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CONFIG_AI_BENCHMARK_RUNTIME="180"
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CONFIG_AI_BENCHMARK_WARMUP_TIME="30"
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# Query patterns
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CONFIG_AI_BENCHMARK_QUERY_TOPK_1=y
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CONFIG_AI_BENCHMARK_QUERY_TOPK_10=y
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# Batch sizes
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CONFIG_AI_BENCHMARK_BATCH_1=y
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CONFIG_AI_BENCHMARK_BATCH_10=y
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# Index configuration
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CONFIG_AI_INDEX_HNSW=y
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CONFIG_AI_INDEX_TYPE="HNSW"
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CONFIG_AI_INDEX_HNSW_M=16
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CONFIG_AI_INDEX_HNSW_EF_CONSTRUCTION=200
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CONFIG_AI_INDEX_HNSW_EF=64
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# Results and visualization
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CONFIG_AI_BENCHMARK_RESULTS_DIR="/data/ai-benchmark"
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CONFIG_AI_BENCHMARK_ENABLE_GRAPHING=y
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CONFIG_AI_BENCHMARK_GRAPH_FORMAT="png"
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CONFIG_AI_BENCHMARK_GRAPH_DPI=300
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CONFIG_AI_BENCHMARK_GRAPH_THEME="default"
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# Multi-filesystem testing configuration
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CONFIG_AI_ENABLE_MULTIFS_TESTING=y
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CONFIG_AI_MULTIFS_RESULTS_DIR="/data/ai-multifs-benchmark"
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# Enable dedicated Milvus storage with node-based filesystem
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CONFIG_AI_MILVUS_STORAGE_ENABLE=y
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CONFIG_AI_MILVUS_USE_NODE_FS=y
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CONFIG_AI_MILVUS_DEVICE="/dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_kdevops3"
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CONFIG_AI_MILVUS_MOUNT_POINT="/data/milvus"
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# XFS configurations
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CONFIG_AI_MULTIFS_TEST_XFS=y
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CONFIG_AI_MULTIFS_XFS_4K_4KS=y
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CONFIG_AI_MULTIFS_XFS_16K_4KS=y
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CONFIG_AI_MULTIFS_XFS_32K_4KS=y
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CONFIG_AI_MULTIFS_XFS_64K_4KS=y
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# ext4 configurations
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CONFIG_AI_MULTIFS_TEST_EXT4=y
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CONFIG_AI_MULTIFS_EXT4_4K=y
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CONFIG_AI_MULTIFS_EXT4_16K_BIGALLOC=y
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# btrfs configurations
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CONFIG_AI_MULTIFS_TEST_BTRFS=y
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CONFIG_AI_MULTIFS_BTRFS_DEFAULT=y
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# Standard filesystem configuration (for comparison)
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CONFIG_AI_FILESYSTEM_XFS=y
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CONFIG_AI_FILESYSTEM="xfs"
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CONFIG_AI_FSTYPE="xfs"
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CONFIG_AI_XFS_MKFS_OPTS="-f -s size=4096"
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CONFIG_AI_XFS_MOUNT_OPTS="rw,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota"
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# Use distribution kernel (no kernel building)
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# CONFIG_BOOTLINUX is not set
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# Memory configuration
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CONFIG_LIBVIRT_MEM_MB=16384
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# Disable A/B testing to use single baseline configuration
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# CONFIG_KDEVOPS_BASELINE_AND_DEV is not set

‎defconfigs/ai-milvus-multifs-extended‎

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# AI Extended Multi-Filesystem Performance Testing Configuration (Distro Kernel)
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# This configuration enables testing AI workloads across multiple filesystem
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# configurations including XFS (4k, 16k, 32k, 64k block sizes), ext4 (4k and 16k bigalloc),
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# and btrfs (default profile) using the distribution kernel without A/B testing.
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# Base virtualization setup
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CONFIG_LIBVIRT=y
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CONFIG_LIBVIRT_MACHINE_TYPE_Q35=y
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CONFIG_LIBVIRT_STORAGE_POOL_PATH="/opt/kdevops/libvirt"
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CONFIG_LIBVIRT_ENABLE_LARGEIO=y
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CONFIG_LIBVIRT_EXTRA_STORAGE_DRIVE_NVME=y
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CONFIG_LIBVIRT_EXTRA_STORAGE_DRIVE_SIZE="50GiB"
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# Network configuration
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CONFIG_LIBVIRT_ENABLE_BRIDGED_NETWORKING=y
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CONFIG_LIBVIRT_NET_NAME="kdevops"
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# Host configuration
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CONFIG_KDEVOPS_HOSTS_TEMPLATE="hosts.j2"
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CONFIG_VAGRANT_NVME_DISK_SIZE="50GiB"
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# Base system requirements
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CONFIG_WORKFLOWS=y
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CONFIG_WORKFLOWS_TESTS=y
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CONFIG_WORKFLOWS_LINUX_TESTS=y
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CONFIG_WORKFLOWS_DEDICATED_WORKFLOW=y
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CONFIG_KDEVOPS_WORKFLOW_DEDICATE_AI=y
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# AI Workflow Configuration
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CONFIG_KDEVOPS_WORKFLOW_ENABLE_AI=y
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CONFIG_AI_TESTS_VECTOR_DATABASE=y
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CONFIG_AI_VECTOR_DB_MILVUS=y
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CONFIG_AI_VECTOR_DB_MILVUS_DOCKER=y
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# Test Parameters (optimized for multi-fs testing)
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CONFIG_AI_BENCHMARK_ITERATIONS=3
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CONFIG_AI_DATASET_1M=y
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CONFIG_AI_VECTOR_DIM_128=y
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CONFIG_AI_BENCHMARK_RUNTIME="180"
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CONFIG_AI_BENCHMARK_WARMUP_TIME="30"
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# Query patterns
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CONFIG_AI_BENCHMARK_QUERY_TOPK_1=y
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CONFIG_AI_BENCHMARK_QUERY_TOPK_10=y
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# Batch sizes
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CONFIG_AI_BENCHMARK_BATCH_1=y
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CONFIG_AI_BENCHMARK_BATCH_10=y
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# Index configuration
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CONFIG_AI_INDEX_HNSW=y
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CONFIG_AI_INDEX_TYPE="HNSW"
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CONFIG_AI_INDEX_HNSW_M=16
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CONFIG_AI_INDEX_HNSW_EF_CONSTRUCTION=200
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CONFIG_AI_INDEX_HNSW_EF=64
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# Results and visualization
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CONFIG_AI_BENCHMARK_RESULTS_DIR="/data/ai-benchmark"
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CONFIG_AI_BENCHMARK_ENABLE_GRAPHING=y
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CONFIG_AI_BENCHMARK_GRAPH_FORMAT="png"
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CONFIG_AI_BENCHMARK_GRAPH_DPI=300
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CONFIG_AI_BENCHMARK_GRAPH_THEME="default"
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# Multi-filesystem testing configuration
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CONFIG_AI_MULTIFS_ENABLE=y
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CONFIG_AI_ENABLE_MULTIFS_TESTING=y
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CONFIG_AI_MULTIFS_RESULTS_DIR="/data/ai-multifs-benchmark"
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# Enable dedicated Milvus storage with node-based filesystem
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CONFIG_AI_MILVUS_STORAGE_ENABLE=y
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CONFIG_AI_MILVUS_USE_NODE_FS=y
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CONFIG_AI_MILVUS_DEVICE="/dev/disk/by-id/nvme-QEMU_NVMe_Ctrl_kdevops3"
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CONFIG_AI_MILVUS_MOUNT_POINT="/data/milvus"
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# Extended XFS configurations (4k, 16k, 32k, 64k block sizes)
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CONFIG_AI_MULTIFS_TEST_XFS=y
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CONFIG_AI_MULTIFS_XFS_4K_4KS=y
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CONFIG_AI_MULTIFS_XFS_16K_4KS=y
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CONFIG_AI_MULTIFS_XFS_32K_4KS=y
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CONFIG_AI_MULTIFS_XFS_64K_4KS=y
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# ext4 configurations
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CONFIG_AI_MULTIFS_TEST_EXT4=y
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CONFIG_AI_MULTIFS_EXT4_4K=y
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CONFIG_AI_MULTIFS_EXT4_16K_BIGALLOC=y
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# btrfs configurations
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CONFIG_AI_MULTIFS_TEST_BTRFS=y
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CONFIG_AI_MULTIFS_BTRFS_DEFAULT=y
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# Standard filesystem configuration (for comparison)
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CONFIG_AI_FILESYSTEM_XFS=y
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CONFIG_AI_FILESYSTEM="xfs"
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CONFIG_AI_FSTYPE="xfs"
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CONFIG_AI_XFS_MKFS_OPTS="-f -s size=4096"
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CONFIG_AI_XFS_MOUNT_OPTS="rw,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota"
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# Use distribution kernel (no kernel building)
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# CONFIG_BOOTLINUX is not set
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# Memory configuration
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CONFIG_LIBVIRT_MEM_MB=16384
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# Baseline/dev testing setup
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CONFIG_KDEVOPS_BASELINE_AND_DEV=y
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# Build Linux
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CONFIG_WORKFLOW_LINUX_CUSTOM=y
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CONFIG_BOOTLINUX_AB_DIFFERENT_REF=y

‎docs/ai/vector-databases/README.md‎

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- **XFS**: Default for many production deployments
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- **ext4**: Traditional Linux filesystem
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- **btrfs**: Copy-on-write with compression support
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- **ZFS**: Advanced features for data integrity
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## Configuration Dimensions
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‎playbooks/ai_install.yml‎

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become: true
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become_user: root
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roles:
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- role: ai_docker_storage
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when: ai_docker_storage_enable | default(true)
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tags: ['ai', 'docker', 'storage']
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- role: ai_milvus_storage
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when: ai_milvus_storage_enable | default(false)
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tags: ['ai', 'milvus', 'storage']
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- role: milvus
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tags: ['ai', 'vector_db', 'milvus', 'install']

‎playbooks/ai_multifs.yml‎

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---
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- hosts: baseline
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become: yes
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gather_facts: yes
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vars:
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ai_benchmark_results_dir: "{{ ai_multifs_results_dir | default('/data/ai-multifs-benchmark') }}"
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roles:
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- role: ai_multifs_setup
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- role: ai_multifs_run
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tasks:
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- name: Final multi-filesystem testing summary
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debug:
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msg: |
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Multi-filesystem AI benchmark testing completed!
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Results directory: {{ ai_multifs_results_dir }}
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Comparison report: {{ ai_multifs_results_dir }}/comparison/multi_filesystem_comparison.html
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Individual filesystem results:
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{% for config in ai_multifs_configurations %}
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{% if config.enabled %}
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- {{ config.name }}: {{ ai_multifs_results_dir }}/{{ config.name }}/
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{% endif %}
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{% endfor %}

‎playbooks/host_vars/debian13-ai-xfs-4k-4ks.yml‎

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