linux-kernel - Re: [PATCH v11 00/24] Introduce threaded trace streaming for basic perf record operation

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Message-ID: <YT5mnDjsuU0tcNy8@krava>
Date:   Sun, 12 Sep 2021 22:44:12 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Alexey Bayduraev <alexey.v.bayduraev@...ux.intel.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Andi Kleen <ak@...ux.intel.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Alexander Antonov <alexander.antonov@...ux.intel.com>,
        Alexei Budankov <abudankov@...wei.com>,
        Riccardo Mancini <rickyman7@...il.com>
Subject: Re: [PATCH v11 00/24] Introduce threaded trace streaming for basic
 perf record operation

On Tue, Aug 17, 2021 at 11:23:03AM +0300, Alexey Bayduraev wrote:

SNIP

> 
> Alexey Bayduraev (24):
>   perf record: Introduce thread affinity and mmap masks
>   tools lib: Introduce fdarray duplicate function
>   perf record: Introduce thread specific data array
>   perf record: Introduce function to propagate control commands
>   perf record: Introduce thread local variable
>   perf record: Stop threads in the end of trace streaming
>   perf record: Start threads in the beginning of trace streaming
>   perf record: Introduce data file at mmap buffer object
>   perf record: Introduce bytes written stats to support --max-size
>     option
>   perf record: Introduce data transferred and compressed stats
>   perf record: Init data file at mmap buffer object
>   perf record: Introduce --threads command line option
>   perf record: Extend --threads command line option
>   perf record: Implement compatibility checks
>   perf report: Output non-zero offset for decompressed records
>   perf report: Output data file name in raw trace dump

following patches:

>   perf session: Move reader structure to the top
>   perf session: Introduce reader_state in reader object
>   perf session: Introduce reader objects in session object
>   perf session: Introduce decompressor into trace reader object
>   perf session: Move init into reader__init function
>   perf session: Move map/unmap into reader__mmap function
>   perf session: Load single file for analysis

up to here 

are changing the core of processing perf.data files,
I think they should be submitted in separate patchset
first and some tests for that would be great

jirka