[OE-core] [PATCH] image_types.bbclass: set parallelism for compression

[Peter Kjellerstedt]

> -----Original Message-----
> From: openembedded-core-bounces at lists.openembedded.org <openembedded-
> core-bounces at lists.openembedded.org> On Behalf Of Trevor Woerner
> Sent: den 15 september 2018 17:47
> To: openembedded-core at lists.openembedded.org
> Subject: [OE-core] [PATCH] image_types.bbclass: set parallelism for
> compression
> 
> Make use of BB_NUMBER_THREADS when setting the parallelism for
> compression.

Shouldn't this rather use the number from PARALLEL_MAKE? If I have a 
build that creates multiple images, bitbake may already have 
BB_NUMBER_THREADS images building in parallel. I would then rather 
expect the parallelism for ach bitbake thread to match PARALLEL_MAKE.

> Signed-off-by: Trevor Woerner <trevor at toganlabs.com>
> ---
>  meta/classes/image_types.bbclass | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/meta/classes/image_types.bbclass
> b/meta/classes/image_types.bbclass
> index 00a00d318f..35ba775cca 100644
> --- a/meta/classes/image_types.bbclass
> +++ b/meta/classes/image_types.bbclass
> @@ -281,8 +281,8 @@ COMPRESSIONTYPES ?= ""
> 
>  CONVERSIONTYPES = "gz bz2 lzma xz lz4 lzo zip sum md5sum sha1sum sha224sum sha256sum sha384sum sha512sum bmap u-boot vmdk vdi qcow2 ${COMPRESSIONTYPES}"
>  CONVERSION_CMD_lzma = "lzma -k -f -7 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
> -CONVERSION_CMD_gz = "pigz -f -9 -n -c ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.gz"
> -CONVERSION_CMD_bz2 = "pbzip2 -f -k ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
> +CONVERSION_CMD_gz = "pigz -f -9 -n -c -p${BB_NUMBER_THREADS} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.gz"
> +CONVERSION_CMD_bz2 = "pbzip2 -f -k -p${BB_NUMBER_THREADS} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
>  CONVERSION_CMD_xz = "xz -f -k -c ${XZ_COMPRESSION_LEVEL} ${XZ_THREADS} --check=${XZ_INTEGRITY_CHECK} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.xz"
>  CONVERSION_CMD_lz4 = "lz4 -9 -z -l ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.lz4"
>  CONVERSION_CMD_lzo = "lzop -9 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
> --
> 2.17.0.582.gccdcbd54c

//Peter