da9946a7c0
Setup boils down to selecting CPUs for exclusive use by SPDK app(s). Signed-off-by: Michal Berger <michalx.berger@intel.com> Change-Id: Ie3af44d16f3f220aeca97b2d65a99297016884dc Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5739 Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com> Reviewed-by: Karol Latecki <karol.latecki@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
46 lines
1.3 KiB
Bash
46 lines
1.3 KiB
Bash
# Select cores for the test
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xtrace_disable
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source "$testdir/common.sh"
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# Number of cpus to include in the mask
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NUM_CPUS=${NUM_CPUS:-8}
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map_cpus
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# Build core mask. Avoid all CPUs that may be offline and skip cpu0
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# (and all its potential thread siblings) as it's already doing an
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# extra work for the kernel.
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denied_list $(get_cpus "${cpu_node_map[0]}" "${cpu_core_map[0]}")
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# If there are any isolated cpus (as defined on the kernel cmdline
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# with isolcpus) they take the priority. We fill up the list up to
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# NUM_CPUS, applying filtering as per the denied list. All cpus are
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# taken from node0.
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allowed_list "$NUM_CPUS" 0
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# Assign proper resources to the cpuset/spdk
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spdk_cpus=("${allowed[@]}")
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spdk_cpus_csv=$(fold_array_onto_string "${spdk_cpus[@]}")
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spdk_cpusmask=$(mask_cpus "${spdk_cpus[@]}")
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spdk_main_core=${spdk_cpus[0]}
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spdk_cpus_mems=0
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# Build list of remaining cpus for posterity
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denied_list "${spdk_cpus[@]}"
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fold_list_onto_array allowed "${cpus[@]}"
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filter_allowed_list
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all_cpus=("${allowed[@]}")
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all_cpus_csv=$(fold_array_onto_string "${all_cpus[@]}")
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all_cpusmask=$(mask_cpus "${all_cpus[@]}")
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export \
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"spdk_cpusmask=$spdk_cpusmask" \
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"spdk_cpus_csv=$spdk_cpus_csv" \
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"spdk_cpus_no=${#spdk_cpus[@]}" \
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"spdk_main_core=$spdk_main_core" \
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"all_cpusmask=$all_cpusmask" \
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"all_cpus_csv=$all_cpus_csv"
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xtrace_restore
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