5.6 Understanding the Statistics of Simple Cache

The following statistics are available in a simple_cache:

Here is an example of the statistics using the print-statistics command:

simics> board.mb.cpu0.cache[0].l1d.print-statistics
Using the 'board.mb.cpu0.core[0][0]' processor for the Steps/Count column
┌─────┬───────────────────────────────────┬─────────┬─────┐
│Row #│              Counter              │  Value  │  %  │
├─────┼───────────────────────────────────┼─────────┼─────┤
│    1│read accesses                      │724945650│     │
│    2│read misses                        │  2678946│ 0.37│
│    3│write accesses                     │555916819│     │
│    4│write misses                       │ 12439648│ 2.24│
│    5│prefetch accesses                  │  8120411│     │
│    6│prefetch misses                    │  5158065│63.52│
│    7│prefetched lines used              │  3533041│43.51│
│    8│prefetch instructions              │   298374│     │
│    9│evicted modified lines             │ 13465148│66.41│
│   10│evicted total lines                │ 20275891│     │
│   11│uncachable read accesses           │ 56576127│     │
│   12│uncachable write accesses          │ 39916459│     │
└─────┴───────────────────────────────────┴─────────┴─────┘

Counts with a value of zero are not printed.