def plot(records, bytes, function):
records = [
x for x in records if x.bytes == bytes and x.function == function
]
variants = libplot.unique(records, 'variant', prefer='this')
alignments = libplot.unique(records, ('src_alignment', 'dst_alignment'))
X = pylab.arange(len(alignments))
width = 1.0 / (len(variants) + 1)
colours = libplot.make_colours()
pylab.figure(1).set_size_inches((16, 12))
pylab.clf()
for i, variant in enumerate(variants):
heights = []
for alignment in alignments:
matches = [
x for x in records
if x.variant == variant and x.src_alignment == alignment[0]
and x.dst_alignment == alignment[1]
]
if matches:
vals = [
match.bytes * match.loops / match.elapsed / (1024 * 1024)
for match in matches
]
mean = sum(vals) / len(vals)
heights.append(mean)
else:
heights.append(0)
pylab.bar(X + i * width,
heights,
width,
color=colours.next(),
label=variant)
axes = pylab.axes()
if libplot.alignments_equal(alignments):
alignment_labels = ["%s" % x[0] for x in alignments]
else:
alignment_labels = ["%s:%s" % (x[0], x[1]) for x in alignments]
axes.set_xticklabels(alignment_labels)
axes.set_xticks(X + 0.5)
pylab.title(
'Performance of different variants of %(function)s for %(bytes)d byte blocks'
% locals())
pylab.xlabel('Alignment')
pylab.ylabel('Rate (MB/s)')
pylab.legend(loc='lower right', ncol=3)
pylab.grid()
pylab.savefig('alignment-%(function)s-%(bytes)d.png' % locals(), dpi=72)
def plot(records, bytes, function):
records = [x for x in records if x.bytes==bytes and x.function==function]
variants = libplot.unique(records, 'variant', prefer='this')
alignments = libplot.unique(records, ('src_alignment', 'dst_alignment'))
X = pylab.arange(len(alignments))
width = 1.0/(len(variants)+1)
colours = libplot.make_colours()
pylab.figure(1).set_size_inches((16, 12))
pylab.clf()
for i, variant in enumerate(variants):
heights = []
for alignment in alignments:
matches = [x for x in records if x.variant==variant and x.src_alignment==alignment[0] and x.dst_alignment==alignment[1]]
if matches:
vals = [match.bytes*match.loops/match.elapsed/(1024*1024) for
match in matches]
mean = sum(vals)/len(vals)
heights.append(mean)
else:
heights.append(0)
pylab.bar(X+i*width, heights, width, color=colours.next(), label=variant)
axes = pylab.axes()
if libplot.alignments_equal(alignments):
alignment_labels = ["%s" % x[0] for x in alignments]
else:
alignment_labels = ["%s:%s" % (x[0], x[1]) for x in alignments]
axes.set_xticklabels(alignment_labels)
axes.set_xticks(X + 0.5)
pylab.title('Performance of different variants of %(function)s for %(bytes)d byte blocks' % locals())
pylab.xlabel('Alignment')
pylab.ylabel('Rate (MB/s)')
pylab.legend(loc='lower right', ncol=3)
pylab.grid()
pylab.savefig('alignment-%(function)s-%(bytes)d.png' % locals(), dpi=72)
def plot(records, function, alignment=None, scale=1):
variants = libplot.unique(records, 'variant', prefer='this')
records = [x for x in records if x.function==function]
if alignment != None:
records = [x for x in records if x.src_alignment==alignment[0] and
x.dst_alignment==alignment[1]]
alignments = libplot.unique(records, ('src_alignment', 'dst_alignment'))
if len(alignments) != 1:
return False
if libplot.alignments_equal(alignments):
aalignment = alignments[0][0]
else:
aalignment = "%s:%s" % (alignments[0][0], alignments[0][1])
bytes = libplot.unique(records, 'bytes')[0]
colours = libplot.make_colours()
all_x = []
pylab.figure(1).set_size_inches((6.4*scale, 4.8*scale))
pylab.clf()
if 'str' in function:
# The harness fills out to 16k. Anything past that is an
# early match
top = 16384
else:
top = 2**31
for variant in variants:
matches = [x for x in records if x.variant==variant and x.bytes <= top]
matches.sort(key=lambda x: x.bytes)
X = sorted(list(set([x.bytes for x in matches])))
Y = []
Yerr = []
for xbytes in X:
vals = [x.bytes*x.loops/x.elapsed/(1024*1024) for x in matches if x.bytes == xbytes]
if len(vals) > 1:
mean = sum(vals)/len(vals)
Y.append(mean)
if len(Yerr) == 0:
Yerr = [[], []]
err1 = max(vals) - mean
assert err1 >= 0
err2 = min(vals) - mean
assert err2 <= 0
Yerr[0].append(abs(err2))
Yerr[1].append(err1)
else:
Y.append(vals[0])
all_x.extend(X)
colour = colours.next()
if X:
pylab.plot(X, Y, c=colour)
if len(Yerr) > 0:
pylab.errorbar(X, Y, yerr=Yerr, c=colour, label=variant, fmt='o')
else:
pylab.scatter(X, Y, c=colour, label=variant, edgecolors='none')
pylab.legend(loc='upper left', ncol=3, prop={'size': 'small'})
pylab.grid()
pylab.title('%(function)s of %(aalignment)s byte aligned blocks' % locals())
pylab.xlabel('Size (B)')
pylab.ylabel('Rate (MB/s)')
# Figure out how high the range goes
top = max(all_x)
power = int(round(math.log(max(all_x)) / math.log(2)))
pylab.semilogx()
pylab.axes().set_xticks([2**x for x in range(0, power+1)])
pylab.axes().set_xticklabels([pretty_kb(2**x) for x in range(0, power+1)])
pylab.xlim(0, top)
pylab.ylim(0, pylab.ylim()[1])
return True
def plot(records, function, alignment=None, scale=1):
variants = libplot.unique(records, 'variant', prefer='this')
records = [x for x in records if x.function == function]
if alignment != None:
records = [
x for x in records if x.src_alignment == alignment[0]
and x.dst_alignment == alignment[1]
]
alignments = libplot.unique(records, ('src_alignment', 'dst_alignment'))
if len(alignments) != 1:
return False
if libplot.alignments_equal(alignments):
aalignment = alignments[0][0]
else:
aalignment = "%s:%s" % (alignments[0][0], alignments[0][1])
bytes = libplot.unique(records, 'bytes')[0]
colours = libplot.make_colours()
all_x = []
pylab.figure(1).set_size_inches((6.4 * scale, 4.8 * scale))
pylab.clf()
if 'str' in function:
# The harness fills out to 16k. Anything past that is an
# early match
top = 16384
else:
top = 2**31
for variant in variants:
matches = [
x for x in records if x.variant == variant and x.bytes <= top
]
matches.sort(key=lambda x: x.bytes)
X = sorted(list(set([x.bytes for x in matches])))
Y = []
Yerr = []
for xbytes in X:
vals = [
x.bytes * x.loops / x.elapsed / (1024 * 1024) for x in matches
if x.bytes == xbytes
]
if len(vals) > 1:
mean = sum(vals) / len(vals)
Y.append(mean)
if len(Yerr) == 0:
Yerr = [[], []]
err1 = max(vals) - mean
assert err1 >= 0
err2 = min(vals) - mean
assert err2 <= 0
Yerr[0].append(abs(err2))
Yerr[1].append(err1)
else:
Y.append(vals[0])
all_x.extend(X)
colour = colours.next()
if X:
pylab.plot(X, Y, c=colour)
if len(Yerr) > 0:
pylab.errorbar(X,
Y,
yerr=Yerr,
c=colour,
label=variant,
fmt='o')
else:
pylab.scatter(X, Y, c=colour, label=variant, edgecolors='none')
pylab.legend(loc='upper left', ncol=3, prop={'size': 'small'})
pylab.grid()
pylab.title('%(function)s of %(aalignment)s byte aligned blocks' %
locals())
pylab.xlabel('Size (B)')
pylab.ylabel('Rate (MB/s)')
# Figure out how high the range goes
top = max(all_x)
power = int(round(math.log(max(all_x)) / math.log(2)))
pylab.semilogx()
pylab.axes().set_xticks([2**x for x in range(0, power + 1)])
pylab.axes().set_xticklabels(
[pretty_kb(2**x) for x in range(0, power + 1)])
pylab.xlim(0, top)
pylab.ylim(0, pylab.ylim()[1])
return True