linux-kernel - Re: [PATCH v5] binder: transaction latency tracking for user build

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Date:   Thu, 2 Jul 2020 21:25:57 +0800
From:   Frankie Chang <Frankie.Chang@...iatek.com>
To:     Todd Kjos <tkjos@...gle.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     Joel Fernandes <joel@...lfernandes.org>,
        Martijn Coenen <maco@...roid.com>,
        Arve Hjønnevåg <arve@...roid.com>,
        Christian Brauner <christian@...uner.io>,
        LKML <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        wsd_upstream <wsd_upstream@...iatek.com>,
        Jian-Min Liu <Jian-Min.Liu@...iatek.com>
Subject: Re: [PATCH v5] binder: transaction latency tracking for user build

Hi Greg, Todd and all

Gentle remind of this patch set

Thanks.
Frankie

On Wed, 2020-06-10 at 20:23 +0800, Frankie Chang wrote:
> Frankie.Chang (3):
>   binder: move structs from core file to header file
>   binder: add trace at free transaction.
>   binder: add transaction latency tracer
> 
>  drivers/android/Kconfig                 |   8 +
>  drivers/android/Makefile                |   1 +
>  drivers/android/binder.c                | 408 +----------------------
>  drivers/android/binder_internal.h       | 416 ++++++++++++++++++++++++
>  drivers/android/binder_latency_tracer.c | 108 ++++++
>  drivers/android/binder_trace.h          |  49 +++
>  6 files changed, 586 insertions(+), 404 deletions(-)  create mode 100644 drivers/android/binder_latency_tracer.c
> 
> Change from v5:
>   - change config name to the proper one, CONFIG_BINDER_TRANSACTION_LATENCY_TRACKING.
>   - change tracepoint name to more descriptive one, trace_binder_txn_latency_(alloc|info|free)
>   - enhance some lock protection.
> 
> Change from v4:
>   - split up into patch series.
> 
> Change from v3:
>   - use tracepoints for binder_update_info and print_binder_transaction_ext,
>     instead of custom registration functions.
> 
> Change from v2:
>   - create transaction latency module to monitor slow transaction.
> 
> Change from v1:
>   - first patchset.