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Update README with recent improvements and features

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- Added CPU Workload Profiles section with auto-adjustment details
- Documented parallel cluster operations and worker pools
- Added CLUSTER_PARALLELISM environment variable documentation
- Documented backup management features (delete archives)
- Added Recent Improvements section highlighting performance optimizations
- Updated memory usage details (constant ~1GB regardless of size)
- Enhanced interactive features list with CPU workload and backup management
- Added bug fixes section documenting OOM and confirmation dialog fixes
This commit is contained in:
Renz
2025-11-12 15:47:02 +00:00
parent 093470ee66
commit 472c7955fe
1 changed files with 37 additions and 4 deletions
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README.md
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@@ -80,7 +80,9 @@ Menu-driven interface for all operations. Press arrow keys to navigate, Enter to
- **Backup Selection**: Choose backup type (single, cluster, sample)
- **Database Selection**: Browse and select database
- **Configuration**: Set compression, parallelism, performance options
- **Configuration Settings**: Set compression, parallelism, CPU workload, performance options
- **CPU Workload Profiles**: Balanced, CPU-Intensive, or I/O-Intensive (auto-adjusts Jobs/DumpJobs)
- **Backup Management**: List, restore, verify, and delete backup archives
- **Safety Checks**: Archive validation, disk space verification
- **Progress Tracking**: Real-time progress with ETA estimation
- **Restore Options**: Smart database cleanup detection, safety confirmations
@@ -195,8 +197,9 @@ Backup all databases in PostgreSQL cluster including roles and tablespaces:
- `--max-cores INT` - Maximum CPU cores (default: auto-detect)
- `--cpu-workload STRING` - Workload type: cpu-intensive, io-intensive, balanced (default: balanced)
- `--jobs INT` - Parallel jobs (default: auto-detect)
- `--dump-jobs INT` - Parallel dump jobs (default: auto-detect)
- `--jobs INT` - Parallel jobs (default: auto-detect based on workload)
- `--dump-jobs INT` - Parallel dump jobs (default: auto-detect based on workload)
- `--cluster-parallelism INT` - Concurrent database operations (default: 2, configurable via CLUSTER_PARALLELISM env var)
**Examples:**
@@ -531,6 +534,8 @@ Manual override:
- `--jobs` - Compression/decompression parallel jobs
- `--dump-jobs` - Database dump parallel jobs
- `--max-cores` - Limit CPU cores (default: 16)
- Cluster operations use worker pools with configurable parallelism (default: 2 concurrent databases)
- Set `CLUSTER_PARALLELISM` environment variable to adjust concurrent database operations
### CPU Workload
@@ -540,6 +545,13 @@ Manual override:
Options: `cpu-intensive`, `io-intensive`, `balanced` (default)
Workload types automatically adjust Jobs and DumpJobs:
- **Balanced**: Jobs = PhysicalCores, DumpJobs = PhysicalCores/2 (min 2)
- **CPU-Intensive**: Jobs = PhysicalCores×2, DumpJobs = PhysicalCores (more parallelism)
- **I/O-Intensive**: Jobs = PhysicalCores/2 (min 1), DumpJobs = 2 (less parallelism to avoid I/O contention)
Configure in interactive mode via Configuration Settings menu.
### Compression
```bash
@@ -716,14 +728,35 @@ dbbackup/
MIT License
## Recent Improvements
### Performance Optimizations
- **Parallel Cluster Operations**: Worker pool pattern for concurrent database backup/restore (3-5x speedup)
- **Memory Efficiency**: Streaming command output eliminates OOM errors on large restores
- **Optimized Goroutines**: Ticker-based progress indicators reduce CPU overhead
- **Configurable Concurrency**: Control parallel database operations via CLUSTER_PARALLELISM
### Interactive UI Enhancements
- **CPU Workload Profiles**: Configure workload type in settings (auto-adjusts parallelism)
- **Backup Management**: Delete archives directly from TUI with confirmation
- **Better Callbacks**: Fixed confirmation dialogs to execute correct actions
- **Cleaner Interface**: Configuration consolidated in Settings menu
### Bug Fixes
- Fixed OOM error during large cluster restores
- Fixed delete backup incorrectly triggering cluster backup
- Fixed signal handler cleanup preventing goroutine leaks
- Improved error handling and user feedback
## Why dbbackup?
- **Reliable** - Comprehensive safety checks, validation, and error handling
- **Simple** - Intuitive menu-driven interface or straightforward CLI
- **Fast** - Automatic CPU detection, parallel processing, streaming compression
- **Efficient** - Minimal memory footprint, even for huge databases
- **Efficient** - Minimal memory footprint, even for huge databases (constant ~1GB regardless of size)
- **Flexible** - Multiple backup modes, compression levels, performance options
- **Safe** - Dry-run by default, archive verification, smart database cleanup
- **Complete** - Full cluster backup/restore, multiple formats
- **Scalable** - Handles databases from megabytes to terabytes
dbbackup is production-ready for backup and disaster recovery operations on PostgreSQL, MySQL, and MariaDB databases of any size.