ZRam-Manager-R36S

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ZRam-Manager-R36S

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Zram enabler for ArkOS installed R36S devices

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# ZRam Manager for R36S / ArkOS

A streamlined ZRam compression manager designed specifically for R36S handheld consoles running ArkOS. This tool optimizes system performance by utilizing compressed RAM, resulting in smoother gameplay and better multitasking.

## 🎮 What is ZRam?

ZRam creates a compressed block device in RAM, allowing your system to store more data in memory by compressing it on-the-fly. This is especially beneficial for handheld gaming devices with limited RAM, providing:

- **Improved game performance** - Reduced stuttering and frame drops
- **Better multitasking** - Run more background processes smoothly
- **Extended effective memory** - Up to 2-3x more usable RAM through compression
- **Zero storage wear** - No writes to SD card unlike traditional swap

## 📦 Installation

1. Download `ZRam Manager.sh` from this repository
2. Copy the file to your **easyroms** drive at: `easyroms/ports/`
3. That's it! The script is ready to use.

## 🚀 Usage

### On Your R36S Console:

1. Navigate to **Ports** section in your menu
2. Launch **ZRam Manager.sh**
3. Use D-pad to navigate the menu:
   - **Enable ZRam** - Activate compression with optimal settings
   - **Disable ZRam** - Turn off ZRam
   - **Custom ZRam** - Configure size and algorithm manually
   - **View Status** - Check current ZRam usage and statistics
   - **Exit** - Close the manager

### First-Time Setup (Recommended):

1. Launch the script
2. Select **"Enable ZRam (Auto)"**
3. The script will automatically:
   - Detect your system RAM
   - Set ZRam to 50% of your RAM (optimal default)
   - Choose the fastest available compression algorithm (usually LZ4)
   - Configure autostart on system boot

That's it! ZRam will now automatically activate every time you power on your device.

## ⚙️ Features

- **Automatic RAM Detection** - Detects and displays your system's total RAM
- **Smart Defaults** - Automatically selects 50% of RAM and fastest algorithm
- **Dynamic Menus** - Only shows valid options based on your hardware
- **Auto-start Support** - Persist settings across reboots via systemd
- **Compression Algorithms**:
  - **LZ4** - Fastest, best for gaming (recommended)
  - **LZO** - Fast compression, good balance
  - **ZSTD** - Better compression ratio, slightly slower
  - **Deflate** - High compression, slower
- **Metro-Futuristic UI** - Clean, compact interface optimized for small screens
- **D-pad Navigation** - Full gamepad control, no keyboard needed

## 🎯 Performance Impact

Users typically experience:

- **10-30% better performance** in demanding games
- **Reduced loading stutters** when switching between menus
- **Smoother emulation** for high-end systems (PSP, N64, Dreamcast)
- **Better stability** during extended gaming sessions

### Compression Efficiency:

With LZ4 algorithm, you can typically achieve 2.5x - 3x compression ratio, effectively turning:
- 1GB RAM → 2.5-3GB usable memory
- 512MB RAM → 1.2-1.5GB usable memory

## 📊 Custom Configuration

### Size Options:
- 256 MB (Minimum)
- 512 MB (Light usage)
- 768 MB (Balanced)
- 1024 MB (Recommended for 2GB+ RAM)
- 1536 MB (Heavy multitasking)
- 2048 MB (Maximum)

*Note: The script only shows sizes up to your available RAM*

### Algorithm Selection:
Choose based on your priority:
- **LZ4** → Speed priority (gaming)
- **LZO** → Balanced
- **ZSTD** → Compression priority (multitasking)

## 🔧 Technical Details

- **Platform**: ArkOS AeUX (R36S)
- **Requirements**: Linux kernel with ZRam support, systemd, dialog
- **Configuration**: `/etc/zram.conf`
- **Autostart Service**: `/etc/systemd/system/zram-swap.service`
- **Startup Script**: `/usr/local/bin/zram-autostart.sh`

## 📚 Resources

- **[R36S Wiki - Performance Guide](https://r36swiki.com/wiki-performance.html)** - Detailed visual guide with screenshots and step-by-step instructions

## ❓ FAQ

**Q: Will this wear out my SD card?**  
A: No! ZRam uses RAM only, not storage. There are zero writes to your SD card.

**Q: Does this drain battery faster?**  
A: Minimal impact. The slight CPU usage for compression is offset by reduced memory pressure.

**Q: Can I disable it anytime?**  
A: Yes! Just launch the script and select "Disable ZRam". It will also remove autostart.

**Q: Will it work on other devices?**  
A: This script is optimized for R36S/ArkOS but should work on any Linux system with ZRam support and dialog installed.

**Q: Is it safe?**  
A: Absolutely! ZRam is a standard Linux kernel feature used by millions of devices including Android phones and Chromebooks.

**Q: What if I run out of compressed RAM?**  
A: The system will simply use regular RAM management. ZRam gracefully handles memory pressure.

## 🐛 Troubleshooting

**Script doesn't launch:**
- Ensure the file is executable: `chmod +x "ZRam Manager.sh"`
- Check file location: Must be in `easyroms/ports/`

**ZRam won't activate:**
- Verify kernel support: `lsmod | grep zram`
- Try manual module load: `sudo modprobe zram`

**Autostart not working:**
- Check service status: `sudo systemctl status zram-swap.service`
- View logs: `sudo journalctl -u zram-swap.service`

## 📝 License

This project is free and open source. Feel free to modify and distribute.

## 🤝 Contributing

Contributions, issues, and feature requests are welcome! Feel free to check the issues page.

## 💬 Support

If you encounter any problems or have questions:
1. Check the FAQ above
2. Review the troubleshooting section
3. Visit [R36S Wiki](https://r36swiki.com) for more guides
4. Open an issue on this repository

## ⭐ Acknowledgments

- Built for the R36S community
- Documentation available at [R36S Wiki](https://r36swiki.com/wiki-performance.html)
- Optimized for ArkOS AeUX
- Inspired by the need for better performance on handheld devices

---

**Enjoy smoother gaming with ZRam Manager! 🎮✨**

*If this tool improved your gaming experience, consider giving it a ⭐ on GitHub!*

ZRam-Manager-R36S

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