MD-Bench/util/cache.py
Rafael Ravedutti 0bb7e3c61f Add cache simulator script and first results
Signed-off-by: Rafael Ravedutti <rafaelravedutti@gmail.com>
2021-06-17 03:07:34 +02:00

34 lines
1.0 KiB
Python

import sys
from cachesim import CacheSimulator, Cache, MainMemory
filename = sys.argv[1]
mem = MainMemory()
#l3 = Cache("L3", 20480, 16, 64, "LRU") # 20MB: 20480 sets, 16-ways with cacheline size of 64 bytes
#l2 = Cache("L2", 256, 4, 64, "LRU", store_to=l3, load_from=l3) # 256KB
#l1 = Cache("L1", 64, 8, 64, "LRU", store_to=l2, load_from=l2) # 32KB
# Cascade Lake
l3 = Cache("L3", 28672, 11, 64, "LRU") # 28MB: 11-ways with cacheline size of 64 bytes
l2 = Cache("L2", 1024, 16, 64, "LRU", store_to=l3, load_from=l3) # 1MB
l1 = Cache("L1", 32, 8, 64, "LRU", store_to=l2, load_from=l2) # 32KB
mem.load_to(l3)
mem.store_from(l3)
cs = CacheSimulator(l1, mem)
with open(filename, 'r') as fp:
for line in fp.readlines():
op, addr = line.split(": ")
op = op[0]
addr = int(addr, 16)
if op == 'W':
cs.store(addr, length=8)
elif op == 'R':
cs.load(addr, length=8)
else:
sys.exit("Invalid operation: {}".format(op))
cs.force_write_back()
cs.print_stats()