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authorRekai Gonzalez Alberquilla <Rekai.GonzalezAlberquilla@arm.com>2015-05-27 13:50:01 +0100
committerRekai Gonzalez Alberquilla <Rekai.GonzalezAlberquilla@arm.com>2015-05-27 13:50:01 +0100
commita3bf4aa6ec9caa68a558f7347d55991f7a254fa5 (patch)
tree119e12016b32ddc297e52524ae5ad9c7ab9a83b8 /src/mem/cache/base.hh
parentc75ff71139d6358678835cca63e35d1135eaf466 (diff)
downloadgem5-a3bf4aa6ec9caa68a558f7347d55991f7a254fa5.tar.xz
mem: Add unused prefetch counter in caches
Added stat to the cache to account for HardPF'ed blocks that are evicted before being referenced (over-prefetching).
Diffstat (limited to 'src/mem/cache/base.hh')
-rw-r--r--src/mem/cache/base.hh3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mem/cache/base.hh b/src/mem/cache/base.hh
index cd21bce91..9275eb453 100644
--- a/src/mem/cache/base.hh
+++ b/src/mem/cache/base.hh
@@ -387,6 +387,9 @@ class BaseCache : public MemObject
/** The number of cache copies performed. */
Stats::Scalar cacheCopies;
+ /** The number of times a HW-prefetched block is evicted w/o reference. */
+ Stats::Scalar unusedPrefetches;
+
/** Number of blocks written back per thread. */
Stats::Vector writebacks;