kernel.git/tools/tracing/rtla/src/timerlat_top.c, branch master

rtla: Remove unused headers

2026-01-07T14:57:55Z

Remove unused includes for and to clean up the code and reduce unnecessary dependencies. Signed-off-by: Wander Lairson Costa Link: https://lore.kernel.org/r/20260106133655.249887-12-wander@redhat.com Signed-off-by: Tomas Glozar

tools/rtla: Consolidate -H/--house-keeping option parsing

2026-01-07T14:57:17Z

Each rtla tool duplicates parsing of -H/--house-keeping. Migrate the option parsing from individual tools to the common_parse_options(). Signed-off-by: Costa Shulyupin Link: https://lore.kernel.org/r/20251209100047.2692515-8-costa.shul@redhat.com Signed-off-by: Tomas Glozar

tools/rtla: Consolidate -P/--priority option parsing

2026-01-07T14:57:17Z

Each rtla tool duplicates parsing of -P/--priority. Migrate the option parsing from individual tools to the common_parse_options(). Signed-off-by: Costa Shulyupin Link: https://lore.kernel.org/r/20251209100047.2692515-7-costa.shul@redhat.com Signed-off-by: Tomas Glozar

tools/rtla: Consolidate -e/--event option parsing

2026-01-07T14:57:17Z

Each rtla tool duplicates parsing of -e/--event. Migrate the option parsing from individual tools to the common_parse_options(). Signed-off-by: Costa Shulyupin Link: https://lore.kernel.org/r/20251209100047.2692515-6-costa.shul@redhat.com Signed-off-by: Tomas Glozar

tools/rtla: Consolidate -d/--duration option parsing

2026-01-07T14:57:17Z

Each rtla tool duplicates parsing of -d/--duration. Migrate the option parsing from individual tools to the common_parse_options(). Signed-off-by: Costa Shulyupin Link: https://lore.kernel.org/r/20251209100047.2692515-5-costa.shul@redhat.com Signed-off-by: Tomas Glozar

tools/rtla: Consolidate -D/--debug option parsing

2026-01-07T14:57:17Z

Each rtla tool duplicates parsing of -D/--debug. Migrate the option parsing from individual tools to the common_parse_options(). Signed-off-by: Costa Shulyupin Link: https://lore.kernel.org/r/20251209100047.2692515-4-costa.shul@redhat.com Signed-off-by: Tomas Glozar

tools/rtla: Consolidate -C/--cgroup option parsing

2026-01-07T14:57:17Z

Each rtla tool duplicates parsing of -C/--cgroup. Migrate the option parsing from individual tools to the common_parse_options(). Signed-off-by: Costa Shulyupin Link: https://lore.kernel.org/r/20251209100047.2692515-3-costa.shul@redhat.com Signed-off-by: Tomas Glozar

tools/rtla: Consolidate -c/--cpus option parsing

2026-01-07T14:57:16Z

Each rtla tool duplicates parsing of -c/--cpus. Migrate the option parsing from individual tools to the common_parse_options(). Signed-off-by: Costa Shulyupin Link: https://lore.kernel.org/r/20251209100047.2692515-2-costa.shul@redhat.com Signed-off-by: Tomas Glozar

tools/rtla: Add common_parse_options()

2026-01-07T14:57:16Z

Each rtla tool duplicates parsing of many common options. This creates maintenance overhead and risks inconsistencies when updating these options. Add common_parse_options() to centralize parsing of options used across all tools. Common options to be migrated in future patches. Changes since v1: - restore opterr Signed-off-by: Costa Shulyupin Link: https://lore.kernel.org/r/20251209100047.2692515-1-costa.shul@redhat.com Signed-off-by: Tomas Glozar

rtla/timerlat: Add --bpf-action option

2026-01-07T14:57:16Z

Add option --bpf-action that allows the user to attach an external BPF program that will be executed via BPF tail call on latency threshold overflow. Executing additional BPF code on latency threshold overflow allows doing low-latency and in-kernel troubleshooting of the cause of the overflow. The option takes an argument, which is a path to a BPF ELF file expected to contain a function named "action_handler" in a section named "tp/timerlat_action" (the section is necessary for libbpf to assign the correct BPF program type to it). Link: https://lore.kernel.org/r/20251126144205.331954-3-tglozar@redhat.com Signed-off-by: Tomas Glozar