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[yocto-autobuilder-helper][PATCH] config.json: track system load with PARALLEL_MAKE
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Trevor Gamblin
This adds the "-l" option to PARALLEL_MAKE in config.json with an
initial testing value of 100 (100% system load). This option is supported by both Make and Ninja. However, we also require the "--debug=j" option to be passed to Make in order for the latter to report perceived system load in the do_compile logs, and since this option is not supported by Ninja, also add EXTRA_OEMAKE to the EXTRAVARS so that we can determine if the target load percentage needs to be adjusted. Signed-off-by: Trevor Gamblin <trevor.gamblin@...> --- config.json | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/config.json b/config.json index f54081b..7fc89ea 100644 --- a/config.json +++ b/config.json @@ -44,7 +44,7 @@ "PREMIRRORS = ''", "BB_GENERATE_MIRROR_TARBALLS = '1'", "BB_NUMBER_THREADS = '16'", - "PARALLEL_MAKE = '-j 16'", + "PARALLEL_MAKE = '-j 16 -l 100'", "XZ_MEMLIMIT = '5%'", "XZ_THREADS = '8'", "BB_TASK_NICE_LEVEL = '5'", @@ -61,7 +61,8 @@ "RUNQEMU_TMPFS_DIR = '/home/pokybuild/tmp'", "BB_HEARTBEAT_EVENT = '60'", "BB_LOG_HOST_STAT_ON_INTERVAL = '1'", - "BB_LOG_HOST_STAT_CMDS_INTERVAL = 'oe-time-dd-test.sh 100'" + "BB_LOG_HOST_STAT_CMDS_INTERVAL = 'oe-time-dd-test.sh 100'", + "EXTRA_OEMAKE = ' --debug=j'" ] }, "templates" : { -- 2.31.1 |
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Alexander Kanavin
I seem to vaguely remember that -l is not actually taking a percentage, but an absolute value that is specific to the amount of CPU cores a system has. Have you verified your assumption? Alex On Mon, 12 Jul 2021 at 14:11, Trevor Gamblin <trevor.gamblin@...> wrote: This adds the "-l" option to PARALLEL_MAKE in config.json with an |
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Trevor Gamblin
On 2021-07-12 12:04 p.m., Alexander
Kanavin wrote:
You are right that it's not actually a percentage and is instead tied to the number of cores. I'll correct the patch body to reflect this when I inevitably send a v2. With the latest testing on the AB, my suspicion that "-l 100" is too generous for most machines is being confirmed...
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