From: Peter Zijlstra <peterz@infradead.org>
To: Leonardo Bras <leonardo@linux.ibm.com>
Cc: "Song Liu" <songliubraving@fb.com>,
"Michal Hocko" <mhocko@suse.com>,
"Dmitry V. Levin" <ldv@altlinux.org>,
"Keith Busch" <keith.busch@intel.com>,
linux-mm@kvack.org, "Paul Mackerras" <paulus@samba.org>,
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"Ira Weiny" <ira.weiny@intel.com>,
"Dan Williams" <dan.j.williams@intel.com>,
"Elena Reshetova" <elena.reshetova@intel.com>,
linux-arch@vger.kernel.org,
"Santosh Sivaraj" <santosh@fossix.org>,
"Davidlohr Bueso" <dave@stgolabs.net>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
"Bartlomiej Zolnierkiewicz" <b.zolnierkie@samsung.com>,
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linux-kernel@vger.kernel.org,
"Logan Gunthorpe" <logang@deltatee.com>,
"Souptick Joarder" <jrdr.linux@gmail.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
linuxppc-dev@lists.ozlabs.org, "Roman Gushchin" <guro@fb.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
"Al Viro" <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH v5 00/11] Introduces new count-based method for tracking lockless pagetable walks
Date: Fri, 4 Oct 2019 14:57:56 +0200 [thread overview]
Message-ID: <20191004125756.GA32620@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20191004114236.GD19463@hirez.programming.kicks-ass.net>
On Fri, Oct 04, 2019 at 01:42:36PM +0200, Peter Zijlstra wrote:
> If you can find anything there that isn't right, please explain that in
> detail and we'll need to look hard at fixing _that_.
Also, I can't imagine Nick is happy with 128 CPUs banging on that atomic
counter, esp. since atomics are horrifically slow on Power.
next prev parent reply other threads:[~2019-10-04 12:59 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191003013325.2614-1-leonardo@linux.ibm.com>
[not found] ` <20191003072952.GN4536@hirez.programming.kicks-ass.net>
2019-10-03 20:36 ` [PATCH v5 00/11] Introduces new count-based method for tracking lockless pagetable walks Leonardo Bras
[not found] ` <99754d82-33c5-a54f-8607-b6bf151069d4@nvidia.com>
2019-10-03 21:38 ` Leonardo Bras
2019-10-04 11:42 ` Peter Zijlstra
2019-10-04 12:57 ` Peter Zijlstra [this message]
[not found] ` <20191003013325.2614-11-leonardo@linux.ibm.com>
[not found] ` <20191003074432.GO4536@hirez.programming.kicks-ass.net>
2019-10-03 20:40 ` [PATCH v5 10/11] mm/Kconfig: Adds config option to track " Leonardo Bras
[not found] ` <20191003013325.2614-2-leonardo@linux.ibm.com>
[not found] ` <20191003071145.GM4536@hirez.programming.kicks-ass.net>
[not found] ` <20191003115141.GJ4581@hirez.programming.kicks-ass.net>
2019-10-03 21:24 ` [PATCH v5 01/11] asm-generic/pgtable: Adds generic functions to monitor lockless pgtable walks Leonardo Bras
2019-10-04 11:28 ` Peter Zijlstra
2019-10-09 18:09 ` Leonardo Bras
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