linux-kernel - Re: [PATCH-tip 00/22] locking/rwsem: Rework rwsem-xadd & enable new rwsem features

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Date:   Thu, 7 Feb 2019 15:00:24 -0500
From:   Waiman Long <longman@...hat.com>
To:     Davidlohr Bueso <dave@...olabs.net>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Will Deacon <will.deacon@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, linux-alpha@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-hexagon@...r.kernel.org, linux-ia64@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-sh@...r.kernel.org,
        sparclinux@...r.kernel.org, linux-xtensa@...ux-xtensa.org,
        linux-arch@...r.kernel.org, x86@...nel.org,
        Arnd Bergmann <arnd@...db.de>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Tim Chen <tim.c.chen@...ux.intel.com>
Subject: Re: [PATCH-tip 00/22] locking/rwsem: Rework rwsem-xadd & enable new
 rwsem features

On 02/07/2019 02:51 PM, Davidlohr Bueso wrote:
> On Thu, 07 Feb 2019, Waiman Long wrote:
>> 30 files changed, 1197 insertions(+), 1594 deletions(-)
>
> Performance numbers on numerous workloads, pretty please.
>
> I'll go and throw this at my mmap_sem intensive workloads
> I've collected.
>
> Thanks,
> Davidlohr

Thanks for getting some of the performance numbers. This is the initial
draft after more than 1 years of hibernation. I will also get other
performance numbers in subsequent revision of the patch.

Cheers,
Longman