Add script for plots

scripts/plot-compression-report.py

@@ -0,0 +1,63 @@
+#!/usr/bin/env -S python3 -u
+
+import argparse
+import json
+import os
+from pprint import pprint
+
+import matplotlib.pyplot as plt
+
+parser = argparse.ArgumentParser(prog="compression-report")
+parser.add_argument("dir")
+args = parser.parse_args()
+
+files = []
+for file_name in os.listdir(args.dir):
+    if not file_name.endswith(".json"):
+        continue
+    file_path = os.path.join(args.dir, file_name)
+    with open(file_path) as json_str:
+        json_data = json.load(json_str)
+    files.append((file_name, json_data))
+#pprint(files)
+
+extra_zstd_lines = True
+dc = 2 # data column to use (1 for sizes, 2 for time)
+sort_by = "ZstdHigh"
+files.sort(key=lambda file_data: [x for x in file_data[1] if x[0] == sort_by][0][dc])
+
+
+x_axis = []
+data_baseline = []
+data_lz4 = []
+data_zstd = []
+data_zstd_low = []
+data_zstd_high = []
+
+for idx, f in enumerate(files):
+    file_data = f[1]
+    #pprint(file_data)
+
+    x_axis.append(idx)
+    data_baseline.append([x for x in file_data if x[0] is None][0][dc])
+    data_lz4.append([x for x in file_data if x[0] == "LZ4"][0][dc])
+    data_zstd.append([x for x in file_data if x[0] == "Zstd"][0][dc])
+    if extra_zstd_lines:
+        data_zstd_low.append([x for x in file_data if x[0] == "ZstdLow"][0][dc])
+        data_zstd_high.append([x for x in file_data if x[0] == "ZstdHigh"][0][dc])
+
+plt.plot(x_axis, data_baseline, "x", markeredgewidth=2, label="baseline")
+plt.plot(x_axis, data_lz4, "x", markeredgewidth=2, label="lz4")
+plt.plot(x_axis, data_zstd, "x", markeredgewidth=2, label="Zstd")
+if extra_zstd_lines:
+    plt.plot(x_axis, data_zstd_low, "x", markeredgewidth=2, label="ZstdLow")
+    plt.plot(x_axis, data_zstd_high, "x", markeredgewidth=2, label="ZstdHigh")
+
+# plt.style.use('_mpl-gallery')
+plt.ylim(bottom=0)
+plt.legend(loc="upper left")
+
+figure_path = os.path.join(args.dir, "figure.png")
+print(f"saving figure to {figure_path}")
+plt.savefig(figure_path)
+plt.show()