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RTLA runtime tests that check workload processes (currently the test case "verify -P/--priority" of timerlat.t and "verify the --priority/-P param" of osnoise.t) use "pgrep timerlatu/" or "pgrep osnoise/" respectively to identify the workload. Make them more robust by adding a get_workload_pids() helper that finds the main rtla process and returns the PIDs of all siblings other than the test script itself, plus all child processes of kthreadd that have the osnoise/timerlat kthread pattern comm. This filters out any spurious processes not related to the running test that happen to have "timerlatu/" or "osnoise/" in their command, for example, a user grepping the same names at the time of the running of the test. Reviewed-by: Wander Lairson Costa <wander@redhat.com> Link: https://lore.kernel.org/r/20260423130558.882022-3-tglozar@redhat.com Signed-off-by: Tomas Glozar <tglozar@redhat.com>
9 lines
311 B
Bash
Executable File
9 lines
311 B
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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. "$(dirname $0)/lib/get_workload_pids.sh"
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for pid in $(get_workload_pids)
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do
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chrt -p $pid | cut -d ':' -f 2 | head -n1 | grep "^ $1\$" >/dev/null
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chrt -p $pid | cut -d ':' -f 2 | tail -n1 | grep "^ $2\$" >/dev/null
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done && echo "Priorities are set correctly"
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