Re: [PATCH v2 4/6] dts: Rework DPDK Attributes In SUT Node Config

[Dean Marx <dmarx@iol.unh.edu>]

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On Fri, Jul 5, 2024 at 2:32 PM Nicholas Pratte <npratte@iol.unh.edu> wrote:

> Rework 'lcores' and 'memory_channels' into a new 'dpdk_config'
> subsection in an effort to make these attributes SUT specific; the
> traffic generator, more often than not, does not need this information.
> Ideally, if such information is needed, then it will be listed in the
> 'traffic_generator' component in TG Node configuration. Such logic is
> not introduced in this patch, but the framework can be rewritten to do
> so without any implications of extreme effort.
>
> To make this work, use_first_core has been removed from the framework
> entirely in favor of doing this within the LogicalCoreListFilter object.
> Since use_first_core was only ever activated when logical core 0 was
> explicitly defined, core 0 can be removed from the list of total logical
> cores assuming that it was not listed within filter_specifier.
>
> This patch also removes 'vdevs' from 'system_under_test_node' and moves
> it into 'executions.'
>
> Bugzilla ID: 1360
> Signed-off-by: Nicholas Pratte <npratte@iol.unh.edu>
>
<snip>

> -    memory_channels: 4 # tells DPDK to use 4 memory channels
> -    hugepages_2mb: # optional; if removed, will use system hugepage
> configuration
> -        number_of: 256
> -        force_first_numa: false
>

Just curious, is there a reason 256 is the default value?

Reviewed-by: Dean Marx <dmarx@iol.unh.edu>

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