| 摘要 |
<p>It is possible to reduce power consumption accompanying a cache hit miss judgment. For this, when accessing a cache memory having means for setting whether cache refill to each of ways in the cache memory is enabled for each CPU or each sled, firstly, a first cache hit miss judgment (steps 2-1, 2-2) is performed only for the way for which refill is enabled. If the first cache hit miss judgment results in a cache hit, the access end occurs (step 2-6). If the judgment results in a cache miss, only a way for which refill is disabled is accessed (step 2-3) or a second hit mist judgment is performed by accessing all the ways (step 2-4).</p> |
