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foxhui
135 lines
2.8 KiB
Markdown
135 lines
2.8 KiB
Markdown
::: info
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This English version is translated by **Gemini 3 Flash**.
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:::
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# Linux Low Memory Optimization
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## Enable SWAP
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1. Check current SWAP status
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```bash
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sudo swapon --show
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```
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2. Create SWAP file
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```bash
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fallocate -l 4G /swapfile
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```
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3. Set permissions
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```bash
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chmod 600 /swapfile
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```
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4. Format and enable SWAP
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```bash
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mkswap /swapfile
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swapon /swapfile
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```
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5. Set auto-mount on boot
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```bash
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echo '/swapfile none swap sw 0 0' | tee -a /etc/fstab
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```
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## Enable ZRAM
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### Debian / Ubuntu
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1. Install
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```bash
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apt update
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apt install zram-tools -y
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```
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2. Modify configuration file
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```bash
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nano /etc/default/zramswap
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```
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Add or modify the following:
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```bash
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# Use lz4 compression algorithm for the best balance of speed and ratio
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ALGO=lz4
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# Use 60% of total memory as ZRAM size
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PERCENT=60
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# [Crucial] Set priority to 100.
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# As long as this is higher than disk Swap (usually -2), the system will prioritize ZRAM.
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PRIORITY=100
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```
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Press `Ctrl+O` Enter to save, `Ctrl+X` to exit.
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3. Restart service
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```bash
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systemctl daemon-reload
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systemctl restart zramswap
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```
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### CentOS / Arch Linux
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Recommended to use `zram-generator` for these systems.
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1. Install
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```bash
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# CentOS 8/9, Fedora, AlmaLinux, Rocky Linux
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dnf install zram-generator -y
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# Arch Linux
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pacman -S zram-generator
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```
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2. Modify configuration file
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Create or edit `/etc/systemd/zram-generator.conf`:
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```ini
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[zram0]
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# Use 60% of total memory
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zram-size = ram * 0.6
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# Use lz4 compression algorithm
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compression-algorithm = lz4
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# Higher priority than disk Swap
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swap-priority = 100
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```
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3. Start service
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```bash
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systemctl daemon-reload
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systemctl start systemd-zram-setup@zram0
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```
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### General Optimization
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Regardless of the system, it is recommended to adjust `swappiness` to use ZRAM more aggressively.
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```bash
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grep -q "vm.swappiness" /etc/sysctl.conf || echo "vm.swappiness=20" | tee -a /etc/sysctl.conf
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sysctl -p
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```
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## Disable Site Isolation (fission.autostart)
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For servers with extremely tight memory (e.g., 1GB RAM), if the system still crashes frequently after enabling SWAP and ZRAM, you can try disabling Firefox's Site Isolation as a **last resort**.
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::: warning Risk Disclosure
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Disabling Site Isolation reduces the uniqueness of the browser fingerprint, potentially making it easier for high-level anti-bot systems to identify (e.g., by detecting single-process model or inter-process communication delays). Use only when necessary.
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:::
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1. Modify `config.yaml`:
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```yaml
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browser:
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# ...
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# Disable site isolation to significantly reduce memory footprint
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fission: false
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```
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2. Restart WebAI2API service.
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::: tip Tip
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After completing the configuration, it is recommended to restart the server to ensure all settings take effect.
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:::
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