[Buildroot] [PATCH] cachebench: new package
Gregory CLEMENT
gregory.clement at free-electrons.com
Fri Aug 3 07:43:27 UTC 2012
This patch adds the cachebench package.
Cachebench presents itself as a program to empirically determine some
parameters about an architectures memory subsystem. It can be used to
have an idea of the performance of the cache support. It has been
integrated into LLCbench (Low Level Characterization Benchmarks), but
currently only Cachebench is supported by Buildroot. The only
difference with mainline is a patch which add a script to be able to
generate data ready to bu used by gnuplot without having to use 'make'
which is usually not present on embedded target.
Signed-off-by: Gregory CLEMENT <gregory.clement at free-electrons.com>
---
package/Config.in | 1 +
package/cachebench/Config.in | 13 ++++
...ipt-rules-of-Makefile-to-run-it-on-target.patch | 65 ++++++++++++++++++++
package/cachebench/cachebench.mk | 30 +++++++++
4 files changed, 109 insertions(+)
create mode 100644 package/cachebench/Config.in
create mode 100644 package/cachebench/cachebench-0001-Convert-script-rules-of-Makefile-to-run-it-on-target.patch
create mode 100644 package/cachebench/cachebench.mk
diff --git a/package/Config.in b/package/Config.in
index f308de7..163f1a7 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -17,6 +17,7 @@ source "package/xz/Config.in"
endmenu
menu "Debugging, profiling and benchmark"
+source "package/cachebench/Config.in"
source "package/bonnie/Config.in"
source "package/dhrystone/Config.in"
source "package/dstat/Config.in"
diff --git a/package/cachebench/Config.in b/package/cachebench/Config.in
new file mode 100644
index 0000000..b97c9ad
--- /dev/null
+++ b/package/cachebench/Config.in
@@ -0,0 +1,13 @@
+config BR2_PACKAGE_CACHEBENCH
+ bool "cachebench"
+ help
+
+ Cachebench presents itself as a program to empirically determine
+ some parameters about an architectures memory subsystem. It can
+ be used to have an idea of the performance of the cache
+ support. It has been integrated into LLCbench (Low Level
+ Characterization Benchmarks), but currently only Cachebench is
+ supported by Buildroot.
+
+ http://icl.cs.utk.edu/projects/llcbench/cachebench.html
+
diff --git a/package/cachebench/cachebench-0001-Convert-script-rules-of-Makefile-to-run-it-on-target.patch b/package/cachebench/cachebench-0001-Convert-script-rules-of-Makefile-to-run-it-on-target.patch
new file mode 100644
index 0000000..505a4fe
--- /dev/null
+++ b/package/cachebench/cachebench-0001-Convert-script-rules-of-Makefile-to-run-it-on-target.patch
@@ -0,0 +1,65 @@
+From 6daded62de221ca0d97360523575b1c7230c8800 Mon Sep 17 00:00:00 2001
+From: Gregory CLEMENT <gregory.clement at free-electrons.com>
+Date: Thu, 2 Aug 2012 22:33:36 +0200
+Subject: [PATCH] Convert script rules of Makefile to run it on target
+
+The benchmark is supposed to be run using the Makefile to be able to
+get data ready to be used by gnuplot. On some target we don't have
+Makefile available, so this script exctracted from the Makefile can be
+used directly to run the benchmark, format data and make a tarball of
+the result.
+---
+ cachebench/do_bench.sh | 40 ++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 40 insertions(+)
+ create mode 100644 cachebench/do_bench.sh
+
+diff --git a/cachebench/do_bench.sh b/cachebench/do_bench.sh
+new file mode 100644
+index 0000000..a80dcde
+--- /dev/null
++++ b/cachebench/do_bench.sh
+@@ -0,0 +1,40 @@
++#!/bin/sh
++# Prefix of the output files produced by each benchmark
++
++# if this fails, replace it with a regular name!
++Result_Prefix=$(hostname)-$(uname -m)
++# Datatype used for each memory reference.
++# Legal values are DOUBLE, CHAR, INT, FLOAT
++CB_Datatype=DOUBLE
++
++# The number of seconds each test runs.
++CB_SecondsPerIteration=5
++
++# The number of times each test is run.
++CB_RepeatCount=1
++
++# Log base 2 of the maximum problem size tested in bytes
++CB_Memsize=29
++
++# The number of test sizes measured between powers of two
++CB_Resolution=2
++
++CBOPTS="-m $CB_Memsize -e $CB_RepeatCount -x $CB_Resolution -d $CB_SecondsPerIteration
++DATA=$CB_Datatype"
++mkdir -p results
++
++cachebench $CBOPTS -r > results/${Result_Prefix}_cache_read.dat
++cachebench $CBOPTS -w > results/${Result_Prefix}_cache_write.dat
++cachebench $CBOPTS -b > results/${Result_Prefix}_cache_rmw.dat
++cachebench $CBOPTS -tr > results/${Result_Prefix}_cache_handread.dat
++cachebench $CBOPTS -tw > results/${Result_Prefix}_cache_handwrite.dat
++cachebench $CBOPTS -tb > results/${Result_Prefix}_cache_handrmw.dat
++cachebench $CBOPTS -s > results/${Result_Prefix}_cache_memset.dat
++cachebench $CBOPTS -p > results/${Result_Prefix}_cache_memcpy.dat
++
++sed -e "s|TITLE|Memory Hierarchy Performance of ${Result_Prefix}|g" < /usr/share/cachebench/cachegraph.gp > results/${Result_Prefix}_cache.gp; echo "plot \"${Result_Prefix}_cache_read\" title 'read' with linespoints \\" >> results/${Result_Prefix}_cache.gp; for i in write rmw handread handwrite handrmw memset memcpy; do echo ", \"${Result_Prefix}_cache_$i.dat\" title '$i' with linespoints \\" >> results/${Result_Prefix}_cache.gp; done;
++
++cd results; tar cf ${Result_Prefix}-cachebench-datafiles.tar ${Result_Prefix}_cache*.dat ${Result_Prefix}_cache.gp
++echo ""
++echo "Datafiles and GNUplot scripts are located in the results directory."
++echo ""
+\ No newline at end of file
+--
+1.7.9.5
+
diff --git a/package/cachebench/cachebench.mk b/package/cachebench/cachebench.mk
new file mode 100644
index 0000000..efe95d9
--- /dev/null
+++ b/package/cachebench/cachebench.mk
@@ -0,0 +1,30 @@
+#############################################################
+#
+# cachebench
+#
+#############################################################
+CACHEBENCH_VERSION = 1.11
+CACHEBENCH_SOURCE = llcbench.tar.gz
+CACHEBENCH_SITE = http://icl.cs.utk.edu/projects/llcbench/
+CACHEBENCH_LICENSE = GPLv3
+CACHEBENCH_LICENSE_FILES = COPYING
+
+define CACHEBENCH_CONFIGURE_CMDS
+ $(MAKE) -C $(@D) linux-lam
+endef
+
+define CACHEBENCH_BUILD_CMDS
+ $(MAKE) BB_CC="$(TARGET_CC) $(TARGET_CFLAGS) $(TARGET_LDFLAGS)" -C $(@D) cache-bench
+endef
+
+define CACHEBENCH_INSTALL_TARGET_CMDS
+ $(INSTALL) -m 0755 -D $(@D)/cachebench/cachebench $(TARGET_DIR)/usr/bin/cachebench
+ $(INSTALL) -m 0755 -D $(@D)/cachebench/do_bench.sh $(TARGET_DIR)/usr/share/cachebench/do_bench.sh
+ cp $(@D)/cachebench/cachegraph.gp $(TARGET_DIR)/usr/share/cachebench/cachegraph.gp
+endef
+
+define CACHEBENCH_UNINSTALL_TARGET_CMDS
+ $(RM) $(TARGET_DIR)/usr/bin/cachebench
+endef
+
+$(eval $(generic-package))
--
1.7.9.5
More information about the buildroot
mailing list