mem-cache: Fixed a bug in MRU replacement policy
The lastTouchTick is set to 0 when instantiate. This will cause the
candidate[0] to get evicted over and over again in MRU replacement
policy. To resolve this, break the search loop whenever it finds a
cold cache line.
Change-Id: I33aa57ebe0efca15986f62c3ae10a146bd2b779f
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/20881
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
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