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authorAndreas Hansson <andreas.hansson@arm.com>2015-05-15 13:38:46 -0400
committerAndreas Hansson <andreas.hansson@arm.com>2015-05-15 13:38:46 -0400
commita45c9508ea3382f54d53f74bea48a61572343a4f (patch)
treebf3074af9645d4004691e5257e1ff000ff0d2cfe /configs
parent20978ee697e8ebe0428685fb86ce2aa0a249efad (diff)
downloadgem5-a45c9508ea3382f54d53f74bea48a61572343a4f.tar.xz
config: Use null memory for DRAM sweep script
Do not waste time when we do not care about the data.
Diffstat (limited to 'configs')
-rw-r--r--configs/dram/sweep.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/configs/dram/sweep.py b/configs/dram/sweep.py
index 228a9c64b..46c0b3d9a 100644
--- a/configs/dram/sweep.py
+++ b/configs/dram/sweep.py
@@ -93,6 +93,9 @@ system.clk_domain = SrcClockDomain(clock = '1.5GHz',
mem_range = AddrRange('256MB')
system.mem_ranges = [mem_range]
+# do not worry about reserving space for the backing store
+mmap_using_noreserve = True
+
# force a single channel to match the assumptions in the DRAM traffic
# generator
options.mem_channels = 1
@@ -104,6 +107,9 @@ MemConfig.config_mem(options, system)
if not isinstance(system.mem_ctrls[0], m5.objects.DRAMCtrl):
fatal("This script assumes the memory is a DRAMCtrl subclass")
+# there is no point slowing things down by saving any data
+system.mem_ctrls[0].null = True
+
# Set the address mapping based on input argument
# Default to RoRaBaCoCh
if options.addr_map == 0: