Performance Issues

Optimizing claude-code-Go performance.

Slow Startup

Symptoms

• Takes > 5 seconds to start
• Shows spinner for long time

Solutions

Check binary location:

# Should be native binary, not 'go run'
file $(which go-code)
# Expected: ELF 64-bit executable

Clear old sessions:

rm ~/.go-code/sessions/*.jsonl

Disable unused features:

{
  "enableMCP": false,
  "enableLSP": false
}

High Memory Usage

Symptoms

• Memory usage > 500MB
• System slowing down
• OOM kills

Solutions

Check memory usage:

ps aux | grep go-code

Compact context:

> /compact

Start fresh:

> /clear

Reduce history size:

{
  "maxHistoryMessages": 20
}

Slow Responses

Symptoms

• Long delays between messages
• Timeouts

Solutions

Check network:

ping api.anthropic.com

Increase timeout:

{
  "timeout": "60s"
}

Switch model:

> /model claude-haiku-4-6-20251001  # Faster model

Simplify requests:

• Break complex tasks into smaller ones
• Clear context with /clear
• Use specific file paths

Token Usage

Monitor usage

> /tokens

Context: 45,234 / 100,000 tokens (45%)

Reduce usage

1. Compact regularly: /compact
2. Start fresh: /clear
3. Be specific: "Read main.go" not "Read all files"

Auto-compact

{
  "autoCompactThreshold": 0.7  // Compact at 70%
}

Benchmarking

Measure performance:

# Startup time
time go-code -p "Hello"

# Memory usage
/usr/bin/time -v go-code -p "Hello"