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From: Pavel Machek <pavel@denx.de>
To: Jonathan Adams <jwadams@google.com>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	netdev@vger.kernel.org, kvm@vger.kernel.org,
	Paolo Bonzini <pbonzini@redhat.com>,
	Greg KH <gregkh@linuxfoundation.org>,
	Jim Mattson <jmattson@google.com>,
	David Rientjes <rientjes@google.com>
Subject: Re: [RFC PATCH 0/7] metricfs metric file system and examples
Date: Mon, 10 Aug 2020 11:23:22 +0200	[thread overview]
Message-ID: <20200810092322.GA12913@localhost> (raw)
In-Reply-To: <20200807212916.2883031-1-jwadams@google.com>

On Fri 2020-08-07 14:29:09, Jonathan Adams wrote:
> [resending to widen the CC lists per rdunlap@infradead.org's suggestion
> original posting to lkml here: https://lkml.org/lkml/2020/8/5/1009]
> 
> To try to restart the discussion of kernel statistics started by the
> statsfs patchsets (https://lkml.org/lkml/2020/5/26/332), I wanted
> to share the following set of patches which are Google's 'metricfs'
> implementation and some example uses.  Google has been using metricfs
> internally since 2012 as a way to export various statistics to our
> telemetry systems (similar to OpenTelemetry), and we have over 200
> statistics exported on a typical machine.
> 
> These patches have been cleaned up and modernized v.s. the versions
> in production; I've included notes under the fold in the patches.
> They're based on v5.8-rc6.
> 
> The statistics live under debugfs, in a tree rooted at:
> 
> 	/sys/kernel/debug/metricfs

Is debugfs right place for this? It looks like something where people
would expect compatibility guarantees...

								Pavel

-- 

      parent reply	other threads:[~2020-08-10  9:23 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-07 21:29 Jonathan Adams
2020-08-07 21:29 ` [RFC PATCH 1/7] core/metricfs: Create metricfs, standardized files under debugfs Jonathan Adams
2020-08-08  5:41   ` Greg KH
2020-08-07 21:29 ` [RFC PATCH 2/7] core/metricfs: add support for percpu metricfs files Jonathan Adams
2020-08-08  5:43   ` Greg KH
2020-08-07 21:29 ` [RFC PATCH 3/7] core/metricfs: metric for kernel warnings Jonathan Adams
2020-08-08  5:45   ` Greg KH
2020-08-07 21:29 ` [RFC PATCH 4/7] core/metricfs: expose softirq information through metricfs Jonathan Adams
2020-08-08  5:46   ` Greg KH
2020-08-07 21:29 ` [RFC PATCH 5/7] core/metricfs: expose scheduler stat " Jonathan Adams
2020-08-07 21:29 ` [RFC PATCH 6/7] core/metricfs: expose x86-specific irq " Jonathan Adams
2020-08-13 10:11   ` Thomas Gleixner
2020-08-13 11:47     ` Paolo Bonzini
2020-08-13 12:13       ` Thomas Gleixner
2020-08-13 14:10         ` Paolo Bonzini
2020-08-13 14:21           ` Thomas Gleixner
2020-08-07 21:29 ` [RFC PATCH 7/7] net-metricfs: Export /proc/net/dev via metricfs Jonathan Adams
2020-08-08  2:06 ` [RFC PATCH 0/7] metricfs metric file system and examples Andrew Lunn
2020-08-08 15:59   ` David Ahern
2020-08-10 18:20     ` Jakub Kicinski
2020-08-10  9:23 ` Pavel Machek [this message]

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