From: "Beckius, Mikael via lttng-dev" <lttng-dev@lists.lttng.org>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
"lttng-dev@lists.lttng.org" <lttng-dev@lists.lttng.org>
Subject: Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization
Date: Mon, 6 Feb 2023 16:15:36 +0000 [thread overview]
Message-ID: <PH0PR11MB49043811E60B4E2AE3C58EBD92DA9@PH0PR11MB4904.namprd11.prod.outlook.com> (raw)
In-Reply-To: <ea3518a5-e539-1616-432c-b7fe7fcada2f@efficios.com>
Hello Mathieu!
I added your latest implementation to my test and it seems to perform well on both arm and arm64. Since the test was written in C++ I had to make a small change to the cast in order for the test to compile.
Micke
> -----Ursprungligt meddelande-----
> Från: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> Skickat: den 2 februari 2023 17:26
> Till: Beckius, Mikael <mikael.beckius@windriver.com>; lttng-
> dev@lists.lttng.org
> Ämne: Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch
> specific optimization
>
> CAUTION: This email comes from a non Wind River email account!
> Do not click links or open attachments unless you recognize the sender and
> know the content is safe.
>
> Hi Mikael,
>
> I just tried another approach to fix this issue, see:
>
> https://review.lttng.org/c/lttng-ust/+/9413 Fix: use unaligned pointer
> accesses for lttng_inline_memcpy
>
> It is less intrusive than other approaches, and does not change the generated
> code on the
> most relevant architectures.
>
> Feedback is welcome,
>
> Thanks,
>
> Mathieu
>
>
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> https://www.efficios.com
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next prev parent reply other threads:[~2023-02-06 16:26 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-30 6:50 Beckius, Mikael via lttng-dev
2023-01-31 16:08 ` Mathieu Desnoyers via lttng-dev
2023-01-31 16:18 ` Mathieu Desnoyers via lttng-dev
2023-01-31 16:32 ` Mathieu Desnoyers via lttng-dev
2023-02-02 16:26 ` Mathieu Desnoyers via lttng-dev
2023-02-06 15:21 ` Beckius, Mikael via lttng-dev
2023-02-06 16:15 ` Beckius, Mikael via lttng-dev [this message]
2023-02-06 16:39 ` Mathieu Desnoyers via lttng-dev
[not found] <CAF2baFfZ+sxAGfxGY_or7=JJMxDngZTtfrzruUC5=RnZFD4tvA@mail.gmail.com>
[not found] ` <954909194.21985.1511551181212.JavaMail.zimbra@efficios.com>
[not found] ` <CAF2baFecVMCenooHSMcNChMEkevz1taF0VWUxWAyxbUq8kVXSg@mail.gmail.com>
2023-01-25 12:25 ` Mathieu Desnoyers via lttng-dev
2023-01-26 19:32 ` Anders Wallin via lttng-dev
2023-01-26 19:47 ` Mathieu Desnoyers via lttng-dev
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