[Buildroot] [PATCH v3] New package: cache-calibrator

Peter Korsgaard jacmet at uclibc.org
Tue Jan 29 20:33:52 UTC 2013


>>>>> "Stephan" == Stephan Hoffmann <sho at relinux.de> writes:

 Stephan> The Calibrator is a small C program that is supposed to analyze
 Stephan> a computers (cache-) memory system and extract the following
 Stephan> parameters:

 Stephan>     number of cache levels
 Stephan>     for each cache level:
 Stephan>         its size
 Stephan>         its linesize
 Stephan>         its access/miss latency
 Stephan>     main memory access latency
 Stephan>     number of TLB levels
 Stephan>     for each TLB level:
 Stephan>         its capacity (i.e. number of entries)
 Stephan>         the pagesize used
 Stephan>         the TLB miss latency

 Stephan> http://homepages.cwi.nl/~manegold/Calibrator/

 Stephan> It is also recommended as a load generator for realtime testing in:

 Stephan> https://rt.wiki.kernel.org/index.php/RT_PREEMPT_HOWTO#Benchmarking

 Stephan> Signed-off-by: Stephan Hoffmann <sho at relinux.de>
 Stephan> ---
 Stephan> v2: Review by Arnout Vandecappelle
 Stephan> 	Fix License
 Stephan> 	Use $(TARGET_CFLAGS) and $(TARGET_LDFLAGS)
 Stephan> 	Fix Typo
 Stephan> 	Remove $(CACHE_CALIBRATOR_DIR) 
 Stephan> v3: Review by Thomas Petazzoni
 Stephan> 	Fix CACHE_CALIBRATOR_EXTRACT_CMDS

 Stephan> @@ -0,0 +1,13 @@
 Stephan> +config BR2_PACKAGE_CACHE_CALIBRATOR
 Stephan> +	bool "cache-calibrator"
 Stephan> +	help
 Stephan> +	  Cache calibrator is a small C program that is
 Stephan> +	  supposed to analyze a computers (cache-) memory
 Stephan> +	  system and extract useful information
 Stephan> +
 Stephan> +	  http://homepages.cwi.nl/~manegold/Calibrator/
 Stephan> +
 Stephan> +	  It is also recommended as a load generator for
 Stephan> +	  realtime testing in:

We normally wrap help text around col 70, not 50. I've reformatted this
to better fit menuconfig.


 Stephan> +++ b/package/cache-calibrator/cache-calibrator.mk
 Stephan> @@ -0,0 +1,24 @@
 Stephan> +#############################################################
 Stephan> +#
 Stephan> +# cache-calibrator
 Stephan> +#
 Stephan> +#############################################################
 Stephan> +
 Stephan> +CACHE_CALIBRATOR_SOURCE = calibrator.c
 Stephan> +CACHE_CALIBRATOR_SITE = http://homepages.cwi.nl/~manegold/Calibrator/src
 Stephan> +CACHE_CALIBRATOR_LICENSE = Cache calibrator license
 Stephan> +CACHE_CALIBRATOR_LICENSE_FILES = calibrator.c
 Stephan> +
 Stephan> +define CACHE_CALIBRATOR_EXTRACT_CMDS
 Stephan> +	cp $(DL_DIR)/$(CACHE_CALIBRATOR_SOURCE) $(D)

Did you test this? It is $(@D) not $(D) (which expands to the empty
string)

Committed with these fixes, thanks.

-- 
Bye, Peter Korsgaard



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