From: "Wangnan (F)" <wangnan0@huawei.com>
To: Alexei Starovoitov <ast@plumgrid.com>, <acme@kernel.org>,
<brendan.d.gregg@gmail.com>
Cc: <a.p.zijlstra@chello.nl>, <daniel@iogearbox.net>,
<dsahern@gmail.com>, <hekuang@huawei.com>, <jolsa@kernel.org>,
<lizefan@huawei.com>, <masami.hiramatsu.pt@hitachi.com>,
<namhyung@kernel.org>, <paulus@samba.org>,
<linux-kernel@vger.kernel.org>, <pi3orama@163.com>,
<xiakaixu@huawei.com>
Subject: Re: [RFC PATCH 0/7] perf tools: Config BPF maps through perf cmdline
Date: Sun, 18 Oct 2015 07:58:34 +0800 [thread overview]
Message-ID: <5622E0AA.3030908@huawei.com> (raw)
In-Reply-To: <5622B101.9070404@plumgrid.com>
On 2015/10/18 4:35, Alexei Starovoitov wrote:
> On 10/17/15 3:48 AM, Wang Nan wrote:
>> In these 7 patches:
>>
>> 1. perf is able to put values into map:
>> # perf record -e mybpf.c/maps.values.value=1234/ ...
>>
>> 2. perf is able to control different slots in a map separately:
>> # perf record -e
>> mybpf.c/maps.values.value[1,4-6]=1234,maps.values.value[0,2-3]=5678/ ...
>>
>> 3. The second syntax can be applied to perf event also:
>> # perf record -v -a -e evt=cycles -e
>> mybpf.c/maps.pmu_map.event[0]=evt/ ...
>>
>> 4. Compatible with the old syntax:
>> # perf record -v -a -e evt=cycles -e
>> mybpf.c/maps.pmu_map.event=evt/ ...
>
> The concept looks good and solves real need.
> No opinion on implementation.
>
Can I translate these words into an acked-by?
And what's your PERF_COUNT_SW_BPF_OUTPUT going on? I think based on this
patchset you can test it with perf now.
Thank you.
next prev parent reply other threads:[~2015-10-18 0:04 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-17 10:48 [RFC PATCH 0/7] perf tools: Config BPF maps through perf cmdline Wang Nan
2015-10-17 10:48 ` [RFC PATCH 1/7] perf tools: Add API to config maps in bpf object Wang Nan
2015-11-20 8:13 ` Wangnan (F)
2015-11-23 11:20 ` Wangnan (F)
2015-10-17 10:48 ` [RFC PATCH 2/7] perf tools: Add API to apply config to BPF map Wang Nan
2015-10-17 10:48 ` [RFC PATCH 3/7] perf record: Apply config to BPF objects before recording Wang Nan
2015-10-17 10:48 ` [RFC PATCH 4/7] perf tools: Enable BPF object configure syntax Wang Nan
2015-10-23 4:48 ` Wangnan (F)
2015-10-17 10:48 ` [RFC PATCH 5/7] perf tools: Support setting different slots in a BPF map separately Wang Nan
2015-11-20 13:25 ` Wangnan (F)
2015-11-20 15:34 ` Arnaldo Carvalho de Melo
2015-11-23 2:01 ` Wangnan (F)
2015-11-23 5:45 ` Wangnan (F)
2015-10-17 10:48 ` [RFC PATCH 6/7] perf tools: Enable indics setting syntax for BPF maps Wang Nan
2015-10-17 10:48 ` [RFC PATCH 7/7] perf tools: Enable passing event to BPF object Wang Nan
2015-10-17 20:35 ` [RFC PATCH 0/7] perf tools: Config BPF maps through perf cmdline Alexei Starovoitov
2015-10-17 23:58 ` Wangnan (F) [this message]
2015-10-18 0:07 ` Alexei Starovoitov
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