update script to have a gap between benchmarks

wasm/test/script.py

@@ -21,15 +21,16 @@
             data[benchmark_name] = (commands, means)
 
 # Prepare the plot
-fig, ax = plt.subplots(figsize=(10, 6))
+fig, ax = plt.subplots(figsize=(12, 6))
 benchmarks = list(data.keys())
 commands = data[benchmarks[0]][0]  # Get the list of tools from the first benchmark
 num_benchmarks = len(benchmarks)
 num_commands = len(commands)
 
-# Set bar width and positions
-bar_width = 0.2
-x = np.arange(num_benchmarks)
+# Set bar width and positions with additional space between groups
+bar_width = 0.15
+group_gap = 0.4  # Gap between benchmark groups
+x = np.arange(num_benchmarks) * (num_commands * bar_width + group_gap)
 
 # Plot bars for each command
 for i, command in enumerate(commands):
@@ -42,7 +43,7 @@
 ax.set_xticklabels(benchmarks, rotation=45, ha='right')
 ax.set_ylabel('Execution Time (s)')
 ax.legend(title="Tool")
-plt.title("Benchmark Execution Times for Various Tools")
+plt.title("Benchmark Execution Times for Various OCaml compilers")
 plt.tight_layout()
 
 # Save as SVG