Add picosoc performance.{py,png}
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					#!/usr/bin/env python3
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					import matplotlib.pyplot as plt
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					import numpy as np
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					text = """
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					default        : 010f52ef
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					dspi-8         : 008dc82f
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					dspi-7         : 008d6d63
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					dspi-6         : 008d1297
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					dspi-5         : 008cb7cb
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					dspi-4         : 008c5cff
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					dspi-3         : 008c0233
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					dspi-2         : 008ba767
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					dspi-1         : 008b4c9b
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					dspi-crm-8     : 008af1cf
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					dspi-crm-7     : 008a9703
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					dspi-crm-6     : 008a3c37
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					dspi-crm-5     : 0089e16b
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					dspi-crm-4     : 0089869f
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					dspi-crm-3     : 00892bd3
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					dspi-crm-2     : 0088d107
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					dspi-crm-1     : 0088763b
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					qspi-8         : 004a2c6f
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					qspi-7         : 0049d1a3
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					qspi-6         : 004976d7
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					qspi-5         : 00491c0b
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					qspi-4         : 0048c13f
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					qspi-3         : 00486673
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					qspi-2         : 00480ba7
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					qspi-1         : 0047b0db
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					qspi-crm-8     : 0047560f
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					qspi-crm-7     : 0046fb43
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					qspi-crm-6     : 0046a077
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					qspi-crm-5     : 004645ab
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					qspi-crm-4     : 0045eadf
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					qspi-crm-3     : 00459013
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					qspi-crm-2     : 00453547
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					qspi-crm-1     : 0044da7b
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					qspi-ddr-8     : 00288bf5
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					qspi-ddr-7     : 00283129
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					qspi-ddr-6     : 0027d65d
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					qspi-ddr-5     : 00277b91
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					qspi-ddr-4     : 002720c5
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					qspi-ddr-3     : 0026c5f9
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					qspi-ddr-2     : 00266b2d
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					qspi-ddr-1     : 00261061
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					qspi-ddr-crm-8 : 0025b595
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					qspi-ddr-crm-7 : 00255ac9
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					qspi-ddr-crm-6 : 0024fffd
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					qspi-ddr-crm-5 : 0024a531
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					qspi-ddr-crm-4 : 00244a65
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					qspi-ddr-crm-3 : 0023ef99
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					qspi-ddr-crm-2 : 002394cd
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					qspi-ddr-crm-1 : 00233a01
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					"""
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					labels = list()
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					values = list()
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					for line in text.split("\n"):
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					    if line != "":
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					        line = line.split()
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					        labels.append(line[0])
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					        values.append(int(line[2], 16))
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					plt.figure(figsize=(10, 3))
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					plt.title("Performance comparison for different PicoSoC SPI flash configurations")
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					plt.plot(range(len(labels)), values[0] / np.array(values))
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					plt.xticks(range(len(labels)), labels, rotation=90)
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					for color, x1, x2 in [["black", 0, 0], ["red", 1, 8], ["green", 9, 16],
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					        ["red", 17, 24], ["green", 25, 32], ["red", 33, 40], ["green", 41, 48]]:
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					    for t in plt.axes().xaxis.get_ticklabels()[x1:x2+1]:
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					        t.set_color(color)
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					    plt.plot([x1, x1], [0, values[0] / values[x1] - 0.2], color=color)
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					    plt.plot([x2, x2], [0, values[0] / values[x2] - 0.2], color=color)  
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					    plt.plot([x1], [values[0] / values[x1]], "k.")
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					    plt.plot([x2], [values[0] / values[x2]], "k.")
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					plt.xlim(-1, len(values))
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					plt.ylim(0, 9)
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					plt.grid()
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					plt.savefig("performance.png")
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					# plt.show()
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