From: Ingo Molnar <mingo@elte.hu>
To: Kay Sievers <kay.sievers@vrfy.org>
Cc: Peter Zijlstra <peterz@infradead.org>, Greg KH <gregkh@suse.de>,
LKML <linux-kernel@vger.kernel.org>,
Lin Ming <ming.m.lin@intel.com>,
Stephane Eranian <eranian@google.com>,
"robert.richter" <robert.richter@amd.com>,
Corey Ashford <cjashfor@linux.vnet.ibm.com>,
fweisbec <fweisbec@gmail.com>, paulus <paulus@samba.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: sysfs: Add an 'events' class. (was: Re: [RFC][PATCH] perf: sysfs type id)
Date: Wed, 10 Nov 2010 16:00:57 +0100 [thread overview]
Message-ID: <20101110150057.GB14496@elte.hu> (raw)
In-Reply-To: <AANLkTikkV1pdseitAPkXTyK529vsvbaVb-RMiMY4Ao-+@mail.gmail.com>
* Kay Sievers <kay.sievers@vrfy.org> wrote:
> > Same here - calling events a 'bus' is like totally brain-dead IMHO. It implies
> > something hardware, while many events are not related to any hardware component
> > but are pure software abstractions: such as context-switches, or syscall
> > entries, or VM events.
>
> Please use a bus, regardless of the name, class is dead and you will need stuff
> tha can only happen at bus. We'll fix the name later.
When is that 'later' supposed to happen? git annotate says that the
renaming/unification comments/plans were added:
46336009 (Kay Sievers 2007-06-08 13:36:37 -0700 105) symlinks pointing to the unified /sys/devices tree.
... about 3 and a half years ago.
> [...] No, /sys/devices/ is and stays as a hierarchy and will not be flat.
Great :-)
Btw., where will thinks like /sys/kernel/slab/ end up? It would be useful (in the
long run) to have:
/sys/kernel/slab/uid_cache/events/
To describe/control events for the uid_cache SLAB cache alone.
Ingo
next prev parent reply other threads:[~2010-11-10 15:01 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-09 21:45 [RFC][PATCH] perf: sysfs type id Peter Zijlstra
2010-11-09 22:11 ` Kay Sievers
2010-11-09 22:22 ` Peter Zijlstra
2010-11-09 22:40 ` Kay Sievers
2010-11-09 22:13 ` Greg KH
2010-11-09 23:36 ` Michael Ellerman
[not found] ` <AANLkTi=UftgQn0ydRd2wszqFtpRrkEcW7dzfapKKix_V@mail.gmail.com>
[not found] ` <1289350360.22787.9.camel@concordia>
[not found] ` <AANLkTikGHNkUN6t9rPhdE6XOQiqb5xAzH_9eY6L9h2H2@mail.gmail.com>
2010-11-10 1:10 ` Michael Ellerman
2010-11-10 1:19 ` Kay Sievers
2010-11-10 1:45 ` Michael Ellerman
2010-11-10 1:59 ` Kay Sievers
2010-11-10 3:37 ` Michael Ellerman
2010-11-10 2:11 ` Kay Sievers
2010-11-10 17:31 ` Greg KH
2010-11-10 12:27 ` Peter Zijlstra
2010-11-10 13:36 ` sysfs: Add an 'events' class. (was: Re: [RFC][PATCH] perf: sysfs type id) Ingo Molnar
2010-11-10 14:14 ` Kay Sievers
2010-11-10 15:00 ` Ingo Molnar [this message]
2010-11-11 6:39 ` Kay Sievers
2010-11-10 13:01 ` [RFC][PATCH] perf: sysfs type id Stephane Eranian
2010-11-10 14:10 ` Peter Zijlstra
2010-11-10 14:19 ` Peter Zijlstra
2010-11-10 20:08 ` Stephane Eranian
2010-11-10 20:32 ` Peter Zijlstra
2010-11-10 20:53 ` Stephane Eranian
2010-11-10 21:05 ` Peter Zijlstra
2010-11-17 2:35 ` Corey Ashford
2010-11-17 7:02 ` Kyle Moffett
2010-11-17 11:30 ` Peter Zijlstra
2010-11-17 11:25 ` Peter Zijlstra
2010-11-17 19:47 ` Corey Ashford
2010-11-17 19:57 ` Peter Zijlstra
2010-11-17 20:01 ` Peter Zijlstra
2010-11-17 21:39 ` Corey Ashford
2010-11-10 14:24 ` Stephane Eranian
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