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"""
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Tachyon Demo - Self-contained profiling example.
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Pure Python with no external imports for clean heatmap output.
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"""
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def fibonacci(n):
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"""Recursive fibonacci - creates deep call stacks."""
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if n <= 1:
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return n
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return fibonacci(n - 1) + fibonacci(n - 2)
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def bubble_sort(arr):
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"""Classic bubble sort - O(n^2) comparison sorting."""
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n = len(arr)
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for i in range(n):
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for j in range(0, n - i - 1):
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if arr[j] > arr[j + 1]:
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arr[j], arr[j + 1] = arr[j + 1], arr[j]
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return arr
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def matrix_multiply(a, b):
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"""Matrix multiplication using nested loops."""
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rows_a, cols_a = len(a), len(a[0])
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rows_b, cols_b = len(b), len(b[0])
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result = [[0] * cols_b for _ in range(rows_a)]
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for i in range(rows_a):
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for j in range(cols_b):
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for k in range(cols_a):
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result[i][j] += a[i][k] * b[k][j]
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return result
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def prime_sieve(limit):
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"""Sieve of Eratosthenes - find all primes up to limit."""
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is_prime = [True] * (limit + 1)
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is_prime[0] = is_prime[1] = False
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for num in range(2, int(limit ** 0.5) + 1):
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if is_prime[num]:
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for multiple in range(num * num, limit + 1, num):
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is_prime[multiple] = False
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return [num for num, prime in enumerate(is_prime) if prime]
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def string_processing(iterations):
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"""String operations - concatenation and formatting."""
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for _ in range(iterations):
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result = ""
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for i in range(50):
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result += f"item_{i}_"
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parts = result.split("_")
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joined = "-".join(parts)
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def list_operations(iterations):
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"""List comprehensions and operations."""
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for _ in range(iterations):
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squares = [x ** 2 for x in range(500)]
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evens = [x for x in squares if x % 2 == 0]
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total = sum(evens)
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def dict_operations(iterations):
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"""Dictionary creation and lookups."""
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for _ in range(iterations):
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data = {f"key_{i}": i ** 2 for i in range(200)}
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values = [data[f"key_{i}"] for i in range(200)]
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total = sum(values)
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def compute_heavy():
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"""CPU-intensive computation section."""
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fibonacci(30)
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size = 60
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a = [[i + j for j in range(size)] for i in range(size)]
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b = [[i * j for j in range(size)] for i in range(size)]
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matrix_multiply(a, b)
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prime_sieve(10000)
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def data_processing():
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"""Data structure operations."""
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string_processing(2000)
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list_operations(1500)
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dict_operations(1000)
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data = list(range(800))
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for _ in range(3):
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data = data[::-1]
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bubble_sort(data[:200])
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def main():
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"""Main entry point."""
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compute_heavy()
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data_processing()
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if __name__ == "__main__":
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main()