benchmarks/gem_latency: Measure fence wakeup latencies

Useful for comparing the cost of explict fences versus implicit.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 20 insertions, 4 deletions

diff --git a/benchmarks/ezbench.d/gem_latency.test b/benchmarks/ezbench.d/gem_latency.test
index a62e1026..22d91b2e 100644
--- a/benchmarks/ezbench.d/gem_latency.test
+++ b/benchmarks/ezbench.d/gem_latency.test
@@ -33,47 +33,63 @@ done
 # Measure the wakeup delay (each wakeup should be uncontended)
 __gem:latency:wait__() {
     for (( c=0; c<$1; c++ )); do
-        sudo $IGT_BENCHMARKS/gem_latency -t 2 -w 2 -p $2 -f 2
+        sudo $IGT_BENCHMARKS/gem_latency -t 2 -w 2 -p $2 -f 2 $3
     done
 }
 for p in 1 2 4 8 16 32 64 128 256 512 1024; do
 	name="gem:latency:wait:$p"
 	test_name="$test_name $name"
 	eval "${name}_run() { __gem:latency:wait__ \$1 $p ; } "
+
+	name="gem:latency:wait:$p:fence"
+	test_name="$test_name $name"
+	eval "${name}_run() { __gem:latency:wait__ \$1 $p -F ; } "
 done
 
 # Measure the total CPU cycles for the uncontended wakeups
 __gem:latency:cpu__() {
     for (( c=0; c<$1; c++ )); do
-        sudo $IGT_BENCHMARKS/gem_latency -t 2 -w 2 -p $2 -f 4
+        sudo $IGT_BENCHMARKS/gem_latency -t 2 -w 2 -p $2 -f 4 $3
     done
 }
 for p in 1 2 4 8 16 32 64 128 512 1024; do
 	name="gem:latency:cpu:$p"
 	test_name="$test_name $name"
 	eval "${name}_run() { __gem:latency:cpu__ \$1 $p ; } "
+
+	name="gem:latency:cpu:$p:fence"
+	test_name="$test_name $name"
+	eval "${name}_run() { __gem:latency:cpu__ \$1 $p -F ; } "
 done
 
 # Measure the wakeup delay for contended wakeups (multiple waiters per request)
 __gem:latency:herd__() {
     for (( c=0; c<$1; c++ )); do
-        sudo $IGT_BENCHMARKS/gem_latency -t 2 -w 1 -c $2 -f 2
+        sudo $IGT_BENCHMARKS/gem_latency -t 2 -w 1 -c $2 -f 2 $3
     done
 }
 for p in 0 1 2 4 8 16 32 64 128 512 1024; do
 	name="gem:latency:herd:$p"
 	test_name="$test_name $name"
 	eval "${name}_run() { __gem:latency:herd__ \$1 $p ; } "
+
+	name="gem:latency:herd:$p:fence"
+	test_name="$test_name $name"
+	eval "${name}_run() { __gem:latency:herd__ \$1 $p -F ; } "
 done
 
 # Measure the impact of contended wakeups on the RealTime waiter
 __gem:latency:realtime__() {
     for (( c=0; c<$1; c++ )); do
-        sudo $IGT_BENCHMARKS/gem_latency -t 2 -w 1 -c $2 -R -f 3
+        sudo $IGT_BENCHMARKS/gem_latency -t 2 -w 1 -c $2 -R -f 3 $3
     done
 }
 for p in 0 1 2 4 8 16 32 64 128 512 1024; do
 	name="gem:latency:realtime:$p"
 	test_name="$test_name $name"
 	eval "${name}_run() { __gem:latency:realtime__ \$1 $p ; } "
+
+	name="gem:latency:realtime:$p:fence"
+	test_name="$test_name $name"
+	eval "${name}_run() { __gem:latency:realtime__ \$1 $p -F ; } "
 done