From 2d0409ba61f03cde66a5c614eb3037d267af9a8e Mon Sep 17 00:00:00 2001
From: Iustin Pop <iustin@k1024.org>
Date: Sat, 16 May 2015 10:19:22 +0200
Subject: [PATCH] Make the run more flexible

Moves some programs to be configurable via env vars, for easier customisation.
---
 Makefile | 4 +++-
 run.sh   | 5 ++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 75fdbfe..2c261bb 100644
--- a/Makefile
+++ b/Makefile
@@ -37,6 +37,8 @@ EXTRA_RUN = /bin/true
 
 REPS = 100
 
+PERF ?= perf
+
 all: $(PROGS) java/Null.class
 
 $(PROGS): Makefile
@@ -94,7 +96,7 @@ log: $(PROGS) $(SCRIPTS) java/Null.class Makefile
 	for prog in $(PROGS:%=./%) $(SCRIPTS:%=./%) $(EXTRA_RUN) $(JAVA_INVOCS); do \
 	  echo $$prog; \
 	  for metric in $(METRICS); do \
-	    LC_ALL=C perf stat -e "$$metric" -r $(REPS) -o log --append $$prog; \
+	    LC_ALL=C $(PERF) stat -e "$$metric" -r $(REPS) -o log --append $$prog; \
 	  done; \
 	done
 
diff --git a/run.sh b/run.sh
index 9872d17..b2733dd 100755
--- a/run.sh
+++ b/run.sh
@@ -1,10 +1,13 @@
 #!/bin/sh
 
+CHRT=${CHRT:-chrt -r 5}
+TASKSET=${TASKSET:-taskset -c 0}
+
 # rebuild everything
 make clean
 make
 # preseed filesystem cache
 make log REPS=2
 # now do the real run
-chrt -r 5 taskset -c 0 make log REPS=500
+$CHRT $TASKSET make log REPS=500
 LC_ALL=en_US.UTF-8 awk -f dump.awk log
-- 
2.39.2