latency_project_files

fileloop.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+echo "Thold  ReadsOver" >> PEBS.txt
+for ((i = 1; i <= 250; i++))
+do
+    for ((n = 1; n <= 1; n++))
+    do
+    export PEBS_LD_LAT_THRESHOLD=0x3F6
+    export CPU=18
+    export CPU_MASK=0x40000
+    wrmsr -p ${CPU} ${PEBS_LD_LAT_THRESHOLD} 0
+    wrmsr -p ${CPU} ${PEBS_LD_LAT_THRESHOLD} $i
+    ./laten2_proj.sh
+    done
+done

laten_proj.sh

@@ -0,0 +1,93 @@
+#!/bin/bash
+
+# (Architectural Version 1)
+export PMC0=0x0C1
+export PMC1=0x0C2
+export PMC2=0x0C3
+export PMC3=0x0C4
+export PERFEVTSEL0=0x186
+export PERFEVTSEL1=0x187
+export PERFEVTSEL2=0x188
+export PERFEVTSEL3=0x189
+
+# (Architectural Version 2)
+export PERF_GLOBAL_CTRL=0x38F
+export PERF_GLOBAL_STATUS=0x38E
+export PERF_GLOBAL_OVF_CTRL=0x390
+export DEBUGCTL=0x1D9
+export FIXED_CTR_CTRL=0x38D
+
+# (Sandy Bridge Specific)
+export PEBS_ENABLE=0x3F1
+#export PEBS_LD_LAT_THRESHOLD=0x3F6
+export MISC_ENABLE=0x1A0
+export PERF_CAPABILITIES=0x345
+
+#Extra counters
+#Instructions Retired/Any
+export FIXED_CTR0=0x309
+#CPU Clock / unhalted core
+export FIXED_CTR1=0x30A
+#CPU Clock / unhalted ref
+export FIXED_CTR2=0x30B
+export D5_AREA=0x600
+
+#Using isolated cpu18
+#export CPU=18
+#export CPU_MASK=0x40000
+
+#echo "Turning everyting off..."
+
+wrmsr -p ${CPU} ${PERF_GLOBAL_CTRL} 0
+wrmsr -p ${CPU} ${PERF_GLOBAL_OVF_CTRL} 0
+
+wrmsr -p ${CPU} ${PERFEVTSEL0} 0
+wrmsr -p ${CPU} ${PERFEVTSEL1} 0
+wrmsr -p ${CPU} ${PERFEVTSEL2} 0
+wrmsr -p ${CPU} ${PERFEVTSEL3} 0
+
+wrmsr -p ${CPU} ${FIXED_CTR_CTRL} 0
+wrmsr -p ${CPU} ${FIXED_CTR0} 0
+wrmsr -p ${CPU} ${FIXED_CTR1} 0
+wrmsr -p ${CPU} ${FIXED_CTR2} 0
+
+wrmsr -p ${CPU} ${PEBS_ENABLE} 0
+#wrmsr -p ${CPU} ${PEBS_LD_LAT_THRESHOLD} 0
+
+#echo "Sleeping for 5 seconds..."
+#sleep 5
+
+
+#echo "Enabling fixed function counters and running stomp (~20 seconds)."
+wrmsr -p ${CPU} ${FIXED_CTR_CTRL} 0x222
+wrmsr -p ${CPU} ${PERF_GLOBAL_CTRL} 0x700000000
+wrmsr -p ${CPU} ${PERF_GLOBAL_CTRL} 0
+wrmsr -p ${CPU} ${FIXED_CTR_CTRL} 0
+#echo "Instructions Retired (any):  " `rdmsr -p ${CPU} ${FIXED_CTR0}`
+#echo "Unhalted core clocks:        " `rdmsr -p ${CPU} ${FIXED_CTR1}`
+#echo "Unhalted reference clocks:   " `rdmsr -p ${CPU} ${FIXED_CTR2}`
+
+wrmsr -p ${CPU} ${FIXED_CTR0} 0
+wrmsr -p ${CPU} ${FIXED_CTR1} 0
+wrmsr -p ${CPU} ${FIXED_CTR2} 0
+
+#echo "Enabling PEBS Load Latency and Fixed Function Counters on PMC0."
+#wrmsr -p ${CPU} ${PEBS_LD_LAT_THRESHOLD} 385
+wrmsr -p ${CPU} ${PERFEVTSEL0} 0x4101CD
+wrmsr -p ${CPU} ${PEBS_ENABLE} 0x100000001
+wrmsr -p ${CPU} ${PERF_GLOBAL_CTRL} 0x1i
+#echo "Running Toy Program (~20 seconds)."
+taskset ${CPU_MASK} ./a.out
+wrmsr -p ${CPU} ${PERF_GLOBAL_CTRL} 0
+#echo "Threshold                   " `rdmsr -p ${CPU} ${PEBS_LD_LAT_THRESHOLD}`
+
+#echo "Tagged reads over threshold " `rdmsr -p ${CPU} ${PMC0}`
+echo `rdmsr -p ${CPU} ${PEBS_LD_LAT_THRESHOLD}` `rdmsr -d -p ${CPU} ${PMC0}` >> PEBS.txt 
+wrmsr -p ${CPU} ${PEBS_ENABLE} 0
+wrmsr -p ${CPU} ${PEBS_LD_LAT_THRESHOLD} 0
+wrmsr -p ${CPU} ${PERFEVTSEL0} 0
+wrmsr -p ${CPU} ${PMC0} 0
+
+
+
+