From 05ca171aa9a6902614241f9685de2f62f30126d8 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 3 Jun 2016 10:43:09 +0100
Subject: benchmarks/gem_exec_nop: Extend submission to check write
 inter-engine sync

Currently, we look at the throughput for submitting a read batch to a
single engine or any. The kernel optimises for this by allowing multiple
engine to read at the same time, but writes are exclusive to a single
engine. So lets try to measure the impact of inserting the barriers
between writes on different engines.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 benchmarks/ezbench.d/gem_exec_nop.test | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

(limited to 'benchmarks/ezbench.d')

diff --git a/benchmarks/ezbench.d/gem_exec_nop.test b/benchmarks/ezbench.d/gem_exec_nop.test
index 7f6cc00e..1c3c4b56 100644
--- a/benchmarks/ezbench.d/gem_exec_nop.test
+++ b/benchmarks/ezbench.d/gem_exec_nop.test
@@ -2,17 +2,28 @@
 sudo -n true || return 1
 
 for ring in rcs bcs vcs vecs all; do
-    name="gem:exec:nop:$ring:single"
+while read label mode; do
+    name="gem:exec:$label:$ring:single"
     test_name="$test_name $name"
-    eval "${name}_run() { sudo $IGT_BENCHMARKS/gem_exec_nop -s -e $ring -r \$1 ; }"
+    eval "${name}_run() { sudo $IGT_BENCHMARKS/gem_exec_nop $mode -s -e $ring -r \$1 ; }"
 
-    name="gem:exec:nop:$ring:forked"
+    name="gem:exec:$label:$ring:single:forked"
     test_name="$test_name $name"
-    eval "${name}_run() { sudo $IGT_BENCHMARKS/gem_exec_nop -f -s -e $ring -r \$1 ; }"
+    eval "${name}_run() { sudo $IGT_BENCHMARKS/gem_exec_nop $mode -f -s -e $ring -r \$1 ; }"
 
-    name="gem:exec:nop:$ring:continuous"
+    name="gem:exec:$label:$ring:continuous"
     test_name="$test_name $name"
-    eval "${name}_run() { sudo $IGT_BENCHMARKS/gem_exec_nop -e $ring -r \$1 ; }"
+    eval "${name}_run() { sudo $IGT_BENCHMARKS/gem_exec_nop $mode -e $ring -r \$1 ; }"
+
+    name="gem:exec:$label:$ring:continuous:forked"
+    test_name="$test_name $name"
+    eval "${name}_run() { sudo $IGT_BENCHMARKS/gem_exec_nop $mode -f -e $ring -r \$1 ; }"
+done<<MODES
+nop
+write		-W
+read		-R
+rw		-R -W
+MODES
 done
 
 test_exec_time=3
-- 
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