From: Waiman Long <longman@redhat.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Baoquan He <bhe@redhat.com>
Cc: Zhipeng Shi <zhipeng.shi0@gmail.com>,
linux-mm@kvack.org, linux-rt-users@vger.kernel.org,
tglx@linutronix.de, shengjian.xu@horizon.ai, schspa@gmail.com,
peterz@infradead.org
Subject: Re: [Question] vmalloc latency in RT-Linux
Date: Fri, 24 Jun 2022 22:27:14 -0400 [thread overview]
Message-ID: <0b08a52a-b348-ca3f-6ea2-4e75498a76b1@redhat.com> (raw)
In-Reply-To: <YrVdtvZgH2aLreOG@linutronix.de>
On 6/24/22 02:46, Sebastian Andrzej Siewior wrote:
> On 2022-06-24 10:39:43 [+0800], Baoquan He wrote:
>> Then this is a good chance to reconsider it, maybe with a test from Zhipeng.
> I reconsidered and it was dropped purpose, see
> https://lore.kernel.org/lkml/YT80AB8%2FG59QBSVq@hirez.programming.kicks-ass.net/
I do agree that is_contended may not that useful for rwlock, but it can
be useful for spinlock. Will you consider a version just for rt_spinlock?
Cheers,
Longman
prev parent reply other threads:[~2022-06-25 2:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-21 12:15 [Question] vmalloc latency in RT-Linux Zhipeng Shi
2022-06-23 10:51 ` Baoquan He
2022-06-23 18:04 ` Waiman Long
2022-06-24 2:39 ` Baoquan He
2022-06-24 5:56 ` Zhipeng Shi
2022-06-24 6:46 ` Sebastian Andrzej Siewior
2022-06-25 2:27 ` Waiman Long [this message]
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