changeset 6ef7d715d583 in /z/repo/gem5
details: http://repo.gem5.org/gem5?cmd=changeset;node=6ef7d715d583
description:
config: Update memtest to stress test clean writebacks
This patch adds yet another twist to the memtest cache hierarchy, in
that
the writeback_clean option is toggled at every level to match the
clusivity of the downstream cache.
diffstat:
configs/example/memtest.py | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diffs (21 lines):
diff -r 929fd978ab4e -r 6ef7d715d583 configs/example/memtest.py
--- a/configs/example/memtest.py Fri Nov 06 03:26:43 2015 -0500
+++ b/configs/example/memtest.py Fri Nov 06 03:26:44 2015 -0500
@@ -177,7 +177,8 @@
# Define a prototype L1 cache that we scale for all successive levels
proto_l1 = Cache(size = '32kB', assoc = 4,
hit_latency = 1, response_latency = 1,
- tgts_per_mshr = 8, clusivity = 'mostly_incl')
+ tgts_per_mshr = 8, clusivity = 'mostly_incl',
+ writeback_clean = True)
if options.blocking:
proto_l1.mshrs = 1
@@ -201,6 +202,7 @@
# Swap the inclusivity/exclusivity at each level. L2 is mostly
# exclusive with respect to L1, L3 mostly inclusive, L4 mostly
# exclusive etc.
+ next.writeback_clean = not prev.writeback_clean
if (prev.clusivity.value == 'mostly_incl'):
next.clusivity = 'mostly_excl'
else:
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