Updated docs with fastuaparser and new benchmarks, cleaner structure.

scripts/speedplot.py

@@ -23,13 +23,14 @@ matplotlib.rcParams["svg.fonttype"] = "path"  # text as paths: renders anywhere
 import matplotlib.pyplot as plt  # noqa: E402
 
 # µs per cold parse, from scripts/bench.py.
+# fastuaparser (~1 µs, 1M parses/s) and cached results are too far off
+# this scale to draw meaningfully and are only mentioned in the README.
 US = {
-    "user-agent-parser": 8.2,
-    "uarite": 17.7,
-    "ua-parser (Rust)": 46.6,
-    "ua-parser (RE2)": 77.1,
-    "ua-parser": 321.5,
-    "user-agents": 334.4,
+    "uarite": 18.0,
+    "ua-parser (Rust)": 38.1,
+    "ua-parser (RE2)": 71.7,
+    "ua-parser": 304.7,
+    "user-agents": 324.6,
 }
 
 #: Readable on both white and dark backgrounds.
@@ -41,29 +42,26 @@ values = [v for _, v in data][::-1]
 colors = ["#6e6e6e"] * len(data)
 colors[names.index("uarite")] = "#2b6cb0"
 
-fig, ax = plt.subplots(figsize=(12, 1.7), dpi=100)
+fig, ax = plt.subplots(figsize=(12, 1.5), dpi=100)
 bars = ax.barh(names, values, color=colors, height=0.82)
-ax.set_xlim(0, max(values))
+xmax = max(values)
+ax.set_xlim(0, xmax)
 ax.axis("off")
 
 for bar, name, v in zip(bars, names, values):
     # Round to two significant digits: 121951 -> "120 000".
     rounded = round(v, 1 - int(f"{v:.0e}".split("e")[1]))
-    label = f"{name}  {rounded:,.0f}".replace(",", " ")
+    label = f"{rounded:,.0f}  {name}".replace(",", " ")
     # va="center" centers the font bbox incl. descender space, which leaves
     # the glyphs slightly high; nudge down to optically center on the bar.
     y = bar.get_y() + bar.get_height() / 2 - 0.09
-    if bar.get_width() > max(values) * 0.28:
-        # Long bar: white text inside, right-aligned at the bar end.
-        ax.text(bar.get_width() - max(values) * 0.012, y, label,
-                va="center", ha="right", color="white", fontsize=11)
-    else:
-        # Short bar: theme-neutral gray text just past the bar end.
-        ax.text(bar.get_width() + max(values) * 0.012, y, label,
-                va="center", color=OUTSIDE, fontsize=11)
+    # All labels after the bar: theme-neutral gray, number before name.
+    # The longest bar's label overflows the axes; bbox_inches="tight"
+    # below expands the canvas to include it, so no dead space remains.
+    ax.text(bar.get_width() + xmax * 0.012, y, label,
+            va="center", color=OUTSIDE, fontsize=11)
 
-fig.tight_layout(pad=0.2)
 out = Path("docs/bench-speed.svg")
 out.parent.mkdir(exist_ok=True)
-fig.savefig(out, transparent=True)
+fig.savefig(out, transparent=True, bbox_inches="tight", pad_inches=0.02)
 print("wrote", out)