examples : add new sweep-bench benchmark

examples/sweep-bench/sweep-bench-plot.py

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+import pandas as pd
+import matplotlib.pyplot as plt
+import numpy as np
+import argparse
+
+parser = argparse.ArgumentParser()
+parser.add_argument('file', nargs='+')
+args = parser.parse_args()
+
+df = None
+
+for jsonl_file in args.file:
+    # Read JSONL file into DataFrame
+    df_part = pd.read_json(jsonl_file, lines=True)
+    df_part['label'] = jsonl_file
+    if df is None:
+        df = df_part
+    else:
+        df = pd.concat([df, df_part])
+
+# Group by model and n_kv, calculate mean and std for both speed metrics
+df_grouped = df.groupby(['label', 'n_kv']).agg({
+    'speed_pp': ['mean', 'std'],
+    'speed_tg': ['mean', 'std']
+}).reset_index()
+
+# Flatten multi-index columns
+df_grouped.columns = ['label', 'n_kv', 'speed_pp_mean', 'speed_pp_std', 
+                      'speed_tg_mean', 'speed_tg_std']
+
+# Replace NaN with 0 (std for a single sample is NaN)
+
+df_grouped['speed_pp_std'] = df_grouped['speed_pp_std'].fillna(0)
+df_grouped['speed_tg_std'] = df_grouped['speed_tg_std'].fillna(0)
+
+# Prepare ticks values for X axis (prune for readability)
+x_ticks = df['n_kv'].unique()
+while len(x_ticks) > 16:
+    x_ticks = x_ticks[::2]
+
+# Get unique labels and color map
+labels = df_grouped['label'].unique()
+colors = plt.cm.rainbow(np.linspace(0, 1, len(labels)))
+
+# Create prompt processing plot
+plt.figure(figsize=(10, 6))
+ax1 = plt.gca()
+
+plt.grid()
+
+ax1.set_xticks(x_ticks)
+
+# Plot each label's data
+for label, color in zip(labels, colors):
+    label_data = df_grouped[df_grouped['label'] == label].sort_values('n_kv')
+    
+    # Plot prompt processing
+    pp = ax1.errorbar(label_data['n_kv'], label_data['speed_pp_mean'], 
+                     yerr=label_data['speed_pp_std'], color=color, 
+                     marker='o', linestyle='-', label=label)
+    
+# Add labels and title
+ax1.set_xlabel('Context Length (tokens)')
+ax1.set_ylabel('Prompt Processing Rate (t/s)')
+plt.title('Prompt Processing Performance Comparison')
+
+ax1.legend(loc='upper right')
+
+# Adjust layout and save
+plt.tight_layout()
+plt.savefig('performance_comparison_pp.png', bbox_inches='tight')
+plt.close()
+
+# Create token generation plot
+plt.figure(figsize=(10, 6))
+ax1 = plt.gca()
+
+plt.grid()
+ax1.set_xticks(x_ticks)
+
+# Plot each model's data
+for label, color in zip(labels, colors):
+    label_data = df_grouped[df_grouped['label'] == label].sort_values('n_kv')
+    
+    # Plot token generation
+    tg = ax1.errorbar(label_data['n_kv'], label_data['speed_tg_mean'],
+                     yerr=label_data['speed_tg_std'], color=color, 
+                     marker='s', linestyle='-', label=label)
+
+# Add labels and title
+ax1.set_xlabel('Context Length (n_kv)')
+ax1.set_ylabel('Token Generation Rate (t/s)')
+plt.title('Token Generation Performance Comparison')
+
+ax1.legend(loc='upper right')
+
+# Adjust layout and save
+plt.tight_layout()
+plt.savefig('performance_comparison_tg.png', bbox_inches='tight')
+plt.close()