changeset d958fc5f4a00 in /z/repo/gem5
details: http://repo.gem5.org/gem5?cmd=changeset;node=d958fc5f4a00
description:
mem: Increase the default buffer sizes for the DDR4 controller
This patch increases the default read/write buffer sizes for the DDR4
controller config to values that are more suitable for the high
bandwidth and high bank count.
diffstat:
src/mem/DRAMCtrl.py | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diffs (15 lines):
diff -r bac38d2a4acb -r d958fc5f4a00 src/mem/DRAMCtrl.py
--- a/src/mem/DRAMCtrl.py Fri Jul 03 10:14:46 2015 -0400
+++ b/src/mem/DRAMCtrl.py Fri Jul 03 10:14:48 2015 -0400
@@ -522,6 +522,11 @@
# constraints incurred by the bank groups
banks_per_rank = 16
+ # override the default buffer sizes and go for something larger to
+ # accommodate the larger bank count
+ write_buffer_size = 128
+ read_buffer_size = 64
+
# 1200 MHz
tCK = '0.833ns'
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