From: Peter Zijlstra <peterz@infradead.org>
To: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: "Joel Fernandes" <joel@joelfernandes.org>,
"Qais Yousef" <qais.yousef@arm.com>,
"Valentin Schneider" <valentin.schneider@arm.com>,
"Radim Krčmář" <rkrcmar@redhat.com>,
LKML <linux-kernel@vger.kernel.org>,
"Ingo Molnar" <mingo@redhat.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Borislav Petkov" <bp@alien8.de>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
"Steven Rostedt" <rostedt@goodmis.org>,
"H. Peter Anvin" <hpa@zytor.com>,
"Andy Lutomirski" <luto@kernel.org>,
"Jirka Hladký" <jhladky@redhat.com>,
"Jiří Vozár" <jvozar@redhat.com>, "X86 ML" <x86@kernel.org>
Subject: Re: [PATCH 2/2] sched/debug: add sched_update_nr_running tracepoint
Date: Wed, 4 Sep 2019 19:47:07 +0200 [thread overview]
Message-ID: <20190904174707.GV2332@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <CAADnVQK+bSzFdZmgTnDSgibhJ81pR19P6hFArqmZa_xKA1r1VQ@mail.gmail.com>
On Wed, Sep 04, 2019 at 08:51:21AM -0700, Alexei Starovoitov wrote:
> Anything in tracing can be deleted.
> Tracing is about debugging and introspection.
> When underlying kernel code changes the introspection points change as well.
Right; except when it breaks widely used tools; like say powertop. Been
there, done that.
next prev parent reply other threads:[~2019-09-04 17:47 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-03 15:43 [PATCH 0/2] " Radim Krčmář
2019-09-03 15:43 ` [PATCH 1/2] x86/mm/tlb: include tracepoints from tlb.c instead of mmu_context.h Radim Krčmář
2019-09-03 15:43 ` [PATCH 2/2] sched/debug: add sched_update_nr_running tracepoint Radim Krčmář
2019-09-03 16:05 ` Valentin Schneider
2019-09-04 4:23 ` Joel Fernandes
2019-09-04 8:14 ` Peter Zijlstra
2019-09-04 10:52 ` Qais Yousef
2019-09-04 13:11 ` Joel Fernandes
2019-09-04 15:26 ` Alexei Starovoitov
2019-09-04 15:33 ` Joel Fernandes
2019-09-04 15:37 ` Alexei Starovoitov
2019-09-04 15:41 ` Joel Fernandes
2019-09-04 10:43 ` Qais Yousef
2019-09-04 13:06 ` Joel Fernandes
2019-09-04 14:20 ` Qais Yousef
2019-09-04 14:41 ` Joel Fernandes
2019-09-04 14:57 ` Qais Yousef
2019-09-04 15:46 ` Joel Fernandes
2019-09-04 15:25 ` Alexei Starovoitov
2019-09-04 15:40 ` Joel Fernandes
2019-09-04 15:51 ` Alexei Starovoitov
2019-09-04 17:47 ` Peter Zijlstra [this message]
2019-09-04 17:53 ` Alexei Starovoitov
2019-09-05 8:13 ` Ingo Molnar
2019-09-05 16:49 ` Alexei Starovoitov
2019-09-04 6:55 ` chengjian (D)
2019-09-04 13:13 ` Peter Zijlstra
2019-09-04 13:21 ` Valentin Schneider
2019-09-04 14:37 ` Qais Yousef
2019-09-04 17:48 ` Peter Zijlstra
2019-09-09 10:59 ` Qais Yousef
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