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Copy pathhitmiss.py
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188 lines (157 loc) · 6.72 KB
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import tagarray
import dataarray
tagarrayObj = tagarray.TagArray
dataarrayObj = dataarray.DataArray
class HitMiss:
@staticmethod
def lru(tagAddrarr, readwritearr, indexarr, offsetarr, ways, sets, n_block, fileaddr):
# n_block size is 2**n
conflict_miss = 0
compulsory_miss = 0
capacity_miss = 0
read_miss = 0
write_miss = 0
dirty_blocks_evicted = 0
unique_tags=[]
uniqueaddr = []
tagStore = tagarrayObj.tagArray(sets)
dataStore = dataarrayObj.dataarray(sets, ways, n_block)
# iterate over tagStore
i = 0
for checkIndex in indexarr:
tagllist = tagStore[checkIndex]
datalist = dataStore[checkIndex]
searchArr = tagllist.search(tagAddrarr[i])
offset = offsetarr[i]
flag = 0
if fileaddr[i] not in uniqueaddr:
compulsory_miss += 1
if(readwritearr[i] == 0):
read_miss += 1
else:
write_miss += 1
flag = 1
uniqueaddr.append(fileaddr[i])
# not found the tagAddr
if(searchArr[1] == -1):
# capacity not full
if(tagllist.maxCapacity() < ways):
tagllist.push(tagAddrarr[i])
datalist.head.data[offset] = 1
if(readwritearr[i]==1 and tagAddrarr[i] not in unique_tags):
dirty_blocks_evicted+=1
unique_tags.append(tagAddrarr[i])
# reach to specific tag in datalist
# capacity is full
else:
if(flag == 0):
# not a compulsory miss
capacity_miss += 1
if(readwritearr[i] == 0):
read_miss += 1
else:
write_miss += 1
tagllist.pop()
tagllist.push(tagAddrarr[i])
pusharr = [0]*n_block
pusharr[offset] = 1
datalist.pop()
datalist.push(pusharr)
if(readwritearr[i]==1 and tagAddrarr[i] not in unique_tags):
dirty_blocks_evicted+=1
unique_tags.append(tagAddrarr[i])
else:
# found the tagAddr
# print("tagadd not present : ", searchArr[1])
tagllist.replaceNode(searchArr)
datalist.replaceNode(searchArr)
#
if(datalist.head.data[offset] == 0):
if(flag == 0):
# not a compulsory miss)
conflict_miss += 1
if(readwritearr[i] == 0):
read_miss += 1
else:
write_miss += 1
datalist.head.data[offset] = 1
if(readwritearr[i]==1 and tagAddrarr[i] not in unique_tags):
dirty_blocks_evicted+=1
unique_tags.append(tagAddrarr[i])
i = i + 1
cache_miss = compulsory_miss + capacity_miss + conflict_miss
return [cache_miss, compulsory_miss, capacity_miss, conflict_miss, read_miss, write_miss, dirty_blocks_evicted]
# tagaddr checkindex i
@staticmethod
def fifo(tagAddrarr, readwritearr, indexarr, offsetarr, ways, sets, n_block, fileaddr):
# n_block size is 2**n
conflict_miss = 0
compulsory_miss = 0
capacity_miss = 0
read_miss = 0
write_miss = 0
dirty_blocks_evicted = 0
unique_tags=[]
uniqueaddr = []
tagStore = tagarrayObj.tagArray(sets)
dataStore = dataarrayObj.dataarray(sets, ways, n_block)
# iterate over tagStore
i = 0
for checkIndex in indexarr:
tagllist = tagStore[checkIndex]
datalist = dataStore[checkIndex]
searchArr = tagllist.search(tagAddrarr[i])
offset = offsetarr[i]
flag = 0
if fileaddr[i] not in uniqueaddr:
compulsory_miss += 1
if(readwritearr[i] == 0):
read_miss += 1
else:
write_miss += 1
flag = 1
uniqueaddr.append(fileaddr[i])
# not found the tagAddr
if(searchArr[1] == -1):
# capacity not full
if(tagllist.maxCapacity() < ways):
tagllist.push(tagAddrarr[i])
datalist.head.data[offset] = 1
if(readwritearr[i]==1 and tagAddrarr[i] not in unique_tags):
dirty_blocks_evicted+=1
unique_tags.append(tagAddrarr[i])
# reach to specific tag in datalist
# capacity is full
else:
if(flag == 0):
# not a compulsory miss
capacity_miss += 1
if(readwritearr[i] == 0):
read_miss += 1
else:
write_miss += 1
tagllist.pop()
tagllist.push(tagAddrarr[i])
pusharr = [0]*n_block
pusharr[offset] = 1
datalist.pop()
datalist.push(pusharr)
if(readwritearr[i]==1 and tagAddrarr[i] not in unique_tags):
dirty_blocks_evicted+=1
unique_tags.append(tagAddrarr[i])
else:
if(datalist.head.data[offset] == 0):
if(flag == 0):
# not a compulsory miss)
conflict_miss += 1
if(readwritearr[i] == 0):
read_miss += 1
else:
write_miss += 1
datalist.head.data[offset] = 1
if(readwritearr[i]==1 and tagAddrarr[i] not in unique_tags):
dirty_blocks_evicted+=1
unique_tags.append(tagAddrarr[i])
i = i + 1
cache_miss = compulsory_miss + capacity_miss + conflict_miss
return [cache_miss, compulsory_miss, capacity_miss, conflict_miss, read_miss, write_miss, dirty_blocks_evicted]