new tool hrtimersnoop #2
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@danobi @ajor @viktormalik - Should the instruction/description file with these scripts be in markdown? |
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Sorry for the delay in getting back to you. We're going to request that new scripts be licensed under a GPLv2-compatible license so that they are able to use the full BPF functionality by calling into GPL-only functions in the Linux kernel.
The list of accepted licenses is described in the kernel docs here: https://docs.kernel.org/process/license-rules.html#id1
- GPL v2
- Dual MIT/GPL v2
- Dual BSD/GPL v2
- Dual MPL/GPL v2
We're also going to start using SPDX identifiers to avoid large license boilerplate. An example would be:
// SPDX-License-Identifier: GPL-2.0-or-later
or:
// SPDX-License-Identifier: MIT OR GPL-2.0-or-later
timer/hrtimersnoop.bt
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| * Copyright 2024 Red Hat, Inc. | ||
| * Licensed under the Apache License, Version 2.0 (the "License"). | ||
| * | ||
| * 4-Apr-2024 Costa Shulyupin Initial release |
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We're also not going to maintain a pseudo-changelog in the script headers in this repository as it's not a reliable source of information (some people update it, some don't) and to avoid debates on what changes are worth including. The Git logs should provide a complete history.
The copyright notice will of course remain.
| * 4-Apr-2024 Costa Shulyupin Initial release |
The tool attaches to timer tracepoints hrtimer_expire_entry, hrtimer_expire_exit and measures delay of timer expiration and duration of timer handler execution.
The tool attaches to timer tracepoints
hrtimer_expire_entry,hrtimer_expire_exitand measures delay of timer expiration and duration of timer handler execution.