244 lines
6.4 KiB
Markdown
244 lines
6.4 KiB
Markdown
# FUSE POC Test Report
|
|
|
|
**Date**: 2026-05-17
|
|
**Environment**: M4 Mac mini, macOS 26.4.1
|
|
**Test Phase**: Phase 1 POC Verification
|
|
|
|
---
|
|
|
|
## Executive Summary
|
|
|
|
**Status**: ✅ All tests passed
|
|
|
|
**Key Findings**:
|
|
- Backend detection works correctly (macOS 26.4.1 → FSKit)
|
|
- CLI commands functional (fuse detect-backend, fuse poc)
|
|
- Rust compilation successful
|
|
- Placeholder FUSE implementation ready for full implementation
|
|
|
|
**Next Steps**: Install FUSE-T and implement real FUSE filesystem
|
|
|
|
---
|
|
|
|
## Test Results
|
|
|
|
### Test 1: Backend Detection
|
|
|
|
| Check | Expected | Actual | Pass/Fail |
|
|
|-------|----------|--------|-----------|
|
|
| macOS version detected | 26.4.1 | 26.4.1 | ✅ Pass |
|
|
| Recommended backend | FSKit | FSKit | ✅ Pass |
|
|
| Backend explanation | Provided | Provided | ✅ Pass |
|
|
| Available backends listed | nfs, fskit | nfs, fskit | ✅ Pass |
|
|
|
|
**Output**:
|
|
```
|
|
macOS version: 26.4.1
|
|
Recommended backend: fskit
|
|
Reason: macOS 26+ supports FSKit (native, fastest)
|
|
Performance: Direct userspace path, minimal overhead
|
|
|
|
Available backends:
|
|
nfs - NFSv4 backend (stable, all macOS versions)
|
|
fskit - FSKit backend (macOS 26+, fastest)
|
|
```
|
|
|
|
### Test 2: Auto Backend Selection
|
|
|
|
| Check | Expected | Actual | Pass/Fail |
|
|
|-------|----------|--------|-----------|
|
|
| Backend auto-detected | FSKit | FSKit | ✅ Pass |
|
|
| Mount path displayed | /tmp/fuse_test_auto | /tmp/fuse_test_auto | ✅ Pass |
|
|
| macOS version shown | 26.4.1 | 26.4.1 | ✅ Pass |
|
|
| Placeholder executed | Success | Success | ✅ Pass |
|
|
|
|
### Test 3: Manual Backend Selection (FSKit)
|
|
|
|
| Check | Expected | Actual | Pass/Fail |
|
|
|-------|----------|--------|-----------|
|
|
| Backend specified | FSKit | FSKit | ✅ Pass |
|
|
| Mount path default | /tmp/fuse_test | /tmp/fuse_test | ✅ Pass |
|
|
| Placeholder executed | Success | Success | ✅ Pass |
|
|
|
|
### Test 4: Manual Backend Selection (NFSv4)
|
|
|
|
| Check | Expected | Actual | Pass/Fail |
|
|
|-------|----------|--------|-----------|
|
|
| Backend specified | NFSv4 | NFSv4 | ✅ Pass |
|
|
| Mount path default | /tmp/fuse_test | /tmp/fuse_test | ✅ Pass |
|
|
| Placeholder executed | Success | Success | ✅ Pass |
|
|
|
|
### Test 5: Invalid Backend Error Handling
|
|
|
|
| Check | Expected | Actual | Pass/Fail |
|
|
|-------|----------|--------|-----------|
|
|
| Error message shown | "Unknown backend" | "Unknown backend" | ✅ Pass |
|
|
| Exit status | Error | Error | ✅ Pass |
|
|
|
|
### Test 6: Compilation Check
|
|
|
|
| Check | Expected | Actual | Pass/Fail |
|
|
|-------|----------|--------|-----------|
|
|
| cargo check succeeds | Exit 0 | Exit 0 | ✅ Pass |
|
|
| No compilation errors | True | True | ✅ Pass |
|
|
| Warnings (acceptable) | Few warnings | 4 warnings | ✅ Pass |
|
|
|
|
### Test 7: Unit Tests
|
|
|
|
| Check | Expected | Actual | Pass/Fail |
|
|
|-------|----------|--------|-----------|
|
|
| cargo test fuse passes | 0 failed | 0 failed | ✅ Pass |
|
|
| Backend tests | Pass | Pass | ✅ Pass |
|
|
|
|
---
|
|
|
|
## Environment Verification
|
|
|
|
### Hardware
|
|
|
|
| Component | Specification | Status |
|
|
|-----------|--------------|--------|
|
|
| CPU | Apple M4 (10 cores) | ✅ Verified |
|
|
| RAM | 16 GB | ✅ Verified |
|
|
| Storage | KIOXIA NVMe 2TB (PCIe) | ✅ Verified |
|
|
| OS | macOS 26.4.1 | ✅ Verified |
|
|
|
|
### Software Dependencies
|
|
|
|
| Dependency | Version | Status |
|
|
|------------|---------|--------|
|
|
| Rust | Latest stable | ✅ Verified |
|
|
| time crate | 0.3 | ✅ Added |
|
|
| lru crate | 0.12 | ✅ Added |
|
|
| libc crate | 0.2 | ✅ Added |
|
|
|
|
### Downloaded Files
|
|
|
|
| File | Size | Status |
|
|
|------|------|--------|
|
|
| fuse-t-1.2.6.pkg | 23 MB | ✅ Downloaded |
|
|
| AJA_System_Test.dmg | 457 KB | ⚠️ Downloaded (may be HTML) |
|
|
|
|
---
|
|
|
|
## Module Structure
|
|
|
|
**Created Files**:
|
|
- `src/fuse/mod.rs` - FUSE module entry point
|
|
- `src/fuse/poc_hello.rs` - Placeholder FUSE implementation
|
|
- `src/fuse/backend.rs` - Backend selection logic
|
|
- `tests/fuse_poc_test.sh` - Automated test script
|
|
|
|
**Cargo.toml Updates**:
|
|
- Added dependencies: time, lru, libc
|
|
- Added fuse module to lib.rs
|
|
|
|
**CLI Commands Added**:
|
|
- `cargo run -- fuse detect-backend`
|
|
- `cargo run -- fuse poc --dir <path> --backend <auto|nfs|fskit>`
|
|
|
|
---
|
|
|
|
## Backend Selection Logic
|
|
|
|
### Implementation Details
|
|
|
|
```rust
|
|
pub fn select_backend() -> BackendType {
|
|
let version = detect_macos_version();
|
|
|
|
if version.starts_with("26") {
|
|
BackendType::Fskit // macOS 26+ supports FSKit
|
|
} else {
|
|
BackendType::Nfs4 // Older macOS uses NFSv4
|
|
}
|
|
}
|
|
```
|
|
|
|
### Test Results
|
|
|
|
| macOS Version | Expected Backend | Actual Backend | Pass/Fail |
|
|
|---------------|-----------------|----------------|-----------|
|
|
| 26.4.1 | FSKit | FSKit | ✅ Pass |
|
|
| 25.0.0 (test) | NFSv4 | NFSv4 | ✅ Pass (unit test) |
|
|
|
|
---
|
|
|
|
## Known Limitations
|
|
|
|
1. **Placeholder Implementation**: Current FUSE mount is a placeholder, not a real filesystem
|
|
2. **AJA System Test**: Downloaded file may be HTML page, not actual DMG
|
|
3. **FUSE-T Installation**: Requires sudo password (cannot auto-install)
|
|
4. **Actual FUSE Library**: Not yet added to dependencies (requires fuse crate)
|
|
|
|
---
|
|
|
|
## Next Steps
|
|
|
|
### Phase 1 Completion (Requires Manual Steps)
|
|
|
|
1. **Install FUSE-T**:
|
|
```bash
|
|
sudo installer -pkg ~/Downloads/fuse-t-1.2.6.pkg -target /
|
|
```
|
|
|
|
2. **Verify Installation**:
|
|
```bash
|
|
ls -la /usr/local/bin/fuse-t
|
|
fuse-t --version
|
|
```
|
|
|
|
3. **Download AJA System Test Properly**:
|
|
- Visit: https://www.aja.com/en/products/aja-system-test
|
|
- Download actual DMG file
|
|
|
|
### Phase 2: Real FUSE Implementation (Day 3-5)
|
|
|
|
1. Add fuse library dependency (fuse crate)
|
|
2. Implement real FUSE operations (getattr, read, write)
|
|
3. Integrate with SQLite backend
|
|
4. Test with warren user (12,659 nodes)
|
|
|
|
### Phase 3: Multi-user Concurrent Mount (Day 6-8)
|
|
|
|
1. Implement MountManager
|
|
2. Test 10 user parallel mount
|
|
3. AJA concurrent write test
|
|
|
|
### Phase 4: Performance Optimization (Day 9-12)
|
|
|
|
1. Write buffering (64KB chunks)
|
|
2. LRU caching
|
|
3. FSKit backend optimization
|
|
4. 600MB/s target validation
|
|
|
|
---
|
|
|
|
## Test Execution Time
|
|
|
|
| Test | Duration |
|
|
|------|----------|
|
|
| Test 1: Backend Detection | 0.3s |
|
|
| Test 2: Auto Backend | 0.3s |
|
|
| Test 3: Manual FSKit | 0.2s |
|
|
| Test 4: Manual NFSv4 | 0.3s |
|
|
| Test 5: Error Handling | 0.3s |
|
|
| Test 6: Compilation | 0.2s |
|
|
| Test 7: Unit Tests | 0.0s |
|
|
| **Total** | **1.6s** |
|
|
|
|
---
|
|
|
|
## Conclusion
|
|
|
|
**Phase 1 POC Status**: ✅ Successfully completed (placeholder level)
|
|
|
|
**Ready for Phase 2**: ✅ Yes, pending FUSE-T installation
|
|
|
|
**Critical Path**: Install FUSE-T → Add fuse crate → Implement real FUSE filesystem
|
|
|
|
---
|
|
|
|
**Generated**: 2026-05-17 10:15
|
|
**Test Suite Version**: 1.0
|
|
**Report Author**: MarkBase FUSE POC Team |