def calculate_miss_ratio_for_all_sets(self,
set_access_histogram,
unscaled_set_reuse_histogram,
prescaled=False):
set_miss_rates = {}
(set_scaling_factors, scaled_set_reuse_histograms) = \
self.scale_and_resample_all_set_histograms(set_access_histogram, unscaled_set_reuse_histogram, prescaled)
for set in range(0, self.number_of_sets):
# Skip if we don't have any set data for this set
#if not set in set_scaling_factors:
# continue
# lrumodel shoudl take a histogram okay, but apparently not
scaled_set_reuse_histogram = scaled_set_reuse_histograms[set]
#print scaled_set_reuse_histogram
if (len(scaled_set_reuse_histogram) == 0):
self.debug(
"Set " + str(set) +
" miss ratio: 0.0 (no accesses to set)", 4)
continue
# FIXME: we should not have to do this, but lrumodel does not work with Histograms for some reason
blah = {}
for k, v in scaled_set_reuse_histogram:
blah[k] = v
set_miss_rates[set] = lrumodel.miss_ratio(
blah) #scaled_set_reuse_histogram)
# FIXME: Is the missrate for byte size or number of lines? self.line_size_bytes*
self.debug(
"Set " + str(set) + " miss ratio: " +
str(set_miss_rates[set][self.associativity]), 4)
return (set_miss_rates, set_scaling_factors)
def calculate_miss_ratio_for_all_sets(self, set_access_histogram, unscaled_set_reuse_histogram, prescaled=False):
set_miss_rates = {}
(set_scaling_factors, scaled_set_reuse_histograms) = \
self.scale_and_resample_all_set_histograms(set_access_histogram, unscaled_set_reuse_histogram, prescaled)
for set in range(0, self.number_of_sets):
# Skip if we don't have any set data for this set
#if not set in set_scaling_factors:
# continue
# lrumodel shoudl take a histogram okay, but apparently not
scaled_set_reuse_histogram = scaled_set_reuse_histograms[set]
#print scaled_set_reuse_histogram
if (len(scaled_set_reuse_histogram) == 0):
self.debug("Set " + str(set) + " miss ratio: 0.0 (no accesses to set)", 4)
continue
# FIXME: we should not have to do this, but lrumodel does not work with Histograms for some reason
blah = {}
for k,v in scaled_set_reuse_histogram:
blah[k]=v
set_miss_rates[set] = lrumodel.miss_ratio(blah)#scaled_set_reuse_histogram)
# FIXME: Is the missrate for byte size or number of lines? self.line_size_bytes*
self.debug("Set " + str(set) + " miss ratio: " + str(set_miss_rates[set][self.associativity]), 4)
return (set_miss_rates, set_scaling_factors)
def mratio2(self, cpi1, cpi2, cache_size):
hist1_hat = hist_est(self.hist1, self.mix1, self.mix2, cpi1, cpi2)
hist2_hat = hist_est(self.hist2, self.mix2, self.mix1, cpi2, cpi1)
hist_hat = hist_add(hist1_hat, hist2_hat)
return lrumodel.miss_ratio([hist_hat], [hist2_hat], True)[cache_size]
def mratio2(self, cpi1, cpi2, cache_size):
hist1_hat = hist_est(self.hist1, self.mix1, self.mix2, cpi1, cpi2)
hist2_hat = hist_est(self.hist2, self.mix2, self.mix1, cpi2, cpi1)
hist_hat = hist_add(hist1_hat, hist2_hat)
return lrumodel.miss_ratio([hist_hat], [hist2_hat], True)[cache_size]
