From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Alexei Starovoitov <ast@plumgrid.com>
Cc: Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Wang Nan <wangnan0@huawei.com>,
davem@davemloft.net, masami.hiramatsu.pt@hitachi.com,
jolsa@kernel.org, lizefan@kernel.org,
linux-kernel@vger.kernel.org, pi3orama@163.com,
hekuang@huawei.com, bgregg@netflix.com
Subject: Re: [RFC PATCH 00/22] perf tools: introduce 'perf bpf' command to load eBPF programs.
Date: Tue, 5 May 2015 12:39:52 -0300 [thread overview]
Message-ID: <20150505153952.GV10475@kernel.org> (raw)
In-Reply-To: <5543B037.9070504@plumgrid.com>
Em Fri, May 01, 2015 at 09:56:23AM -0700, Alexei Starovoitov escreveu:
> Anyway, back to my original question about long term home.
> where to land 'perf/bpf' branch ?
I don't care, but for me to merge it, please go on addressing the
comments made in this thread (perf bpf command --args, etc) and at some
point provide a small patchset that implements the most basic stuff,
like, say, a "hello, world" style proggie, together with the
tools/perf/Documentation/perf-bpf.txt file, detailed instructions on how
to use the feature, i.e. what dependencies are needed, what kernel
options should be enabled, etc.
Nice warning/error messages for when the user doesn't have those options
enabled or doesn't have appropriate permissions, etc.
I.e. just by following what is in each changeset comment log I should be
able to test patch after patch.
After we get one such, say, 10-long patchkit with a very basic feature
of eBPF exposed via 'perf bpf', we can go to the next, and so on.
Try to use 'perf trace usleep 1', 'perf trace -a usleep 1' as non-root,
for instance, to see examples on how to inform the user about what is
needed to use the tool.
- Arnaldo
next prev parent reply other threads:[~2015-05-05 16:10 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-30 10:52 [RFC PATCH 00/22] perf tools: introduce 'perf bpf' command to load eBPF programs Wang Nan
2015-04-30 10:52 ` [RFC PATCH 01/22] perf: probe: avoid segfault if passed with '' Wang Nan
2015-05-05 14:09 ` Masami Hiramatsu
2015-05-05 15:26 ` Arnaldo Carvalho de Melo
2015-05-05 16:33 ` Masami Hiramatsu
2015-04-30 10:52 ` [RFC PATCH 02/22] perf: bpf: prepare: add __aligned_u64 to types.h Wang Nan
2015-04-30 10:52 ` [RFC PATCH 03/22] perf: add bpf common operations Wang Nan
2015-04-30 10:52 ` [RFC PATCH 04/22] perf tools: Add new 'perf bpf' command Wang Nan
2015-05-11 6:28 ` Namhyung Kim
2015-04-30 10:52 ` [RFC PATCH 05/22] perf bpf: open eBPF object file and do basic validation Wang Nan
2015-04-30 10:52 ` [RFC PATCH 06/22] perf bpf: check swap according to EHDR Wang Nan
2015-04-30 10:52 ` [RFC PATCH 07/22] perf bpf: iterater over elf sections to collect information Wang Nan
2015-04-30 10:52 ` [RFC PATCH 08/22] perf bpf: collect version and license from ELF Wang Nan
2015-04-30 10:52 ` [RFC PATCH 09/22] perf bpf: collect map definitions Wang Nan
2015-05-11 6:32 ` Namhyung Kim
2015-04-30 10:52 ` [RFC PATCH 10/22] perf bpf: collect config section in object Wang Nan
2015-04-30 10:52 ` [RFC PATCH 11/22] perf bpf: collect symbol table in object files Wang Nan
2015-04-30 10:52 ` [RFC PATCH 12/22] perf bpf: collect bpf programs from " Wang Nan
2015-04-30 10:52 ` [RFC PATCH 13/22] perf bpf: collects relocation sections from object file Wang Nan
2015-04-30 10:52 ` [RFC PATCH 14/22] perf bpf: config eBPF programs based on their names Wang Nan
2015-04-30 10:52 ` [RFC PATCH 15/22] perf bpf: config eBPF programs using config section Wang Nan
2015-04-30 10:52 ` [RFC PATCH 16/22] perf bpf: create maps needed by object file Wang Nan
2015-04-30 10:52 ` [RFC PATCH 17/22] perf bpf: relocation programs Wang Nan
2015-04-30 10:52 ` [RFC PATCH 18/22] perf bpf: load eBPF programs into kernel Wang Nan
2015-04-30 10:52 ` [RFC PATCH 19/22] perf bpf: dump eBPF program before loading Wang Nan
2015-04-30 10:52 ` [RFC PATCH 20/22] perf bpf: clean elf memory after loading Wang Nan
2015-04-30 10:52 ` [RFC PATCH 21/22] perf bpf: probe at kprobe points Wang Nan
2015-05-05 16:34 ` Masami Hiramatsu
2015-05-06 2:36 ` Wang Nan
2015-04-30 10:52 ` [RFC PATCH 22/22] perf bpf: attaches eBPF program to perf fd Wang Nan
2015-05-01 4:37 ` [RFC PATCH 00/22] perf tools: introduce 'perf bpf' command to load eBPF programs Alexei Starovoitov
2015-05-01 11:06 ` Peter Zijlstra
2015-05-01 11:49 ` Ingo Molnar
2015-05-01 16:56 ` Alexei Starovoitov
2015-05-01 17:06 ` Ingo Molnar
2015-05-05 15:39 ` Arnaldo Carvalho de Melo [this message]
2015-05-02 7:19 ` Wang Nan
2015-05-05 3:02 ` Alexei Starovoitov
2015-05-05 4:41 ` Wang Nan
2015-05-05 5:49 ` Alexei Starovoitov
2015-05-05 6:14 ` Wang Nan
2015-05-06 4:46 ` Wang Nan
2015-05-06 4:56 ` Alexei Starovoitov
2015-05-06 5:00 ` Wang Nan
2015-05-01 7:16 ` Ingo Molnar
2015-05-05 21:52 ` Brendan Gregg
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