linux-kernel - Re: Should perf version match kernel version?

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Message-ID: <20200802115124.GA1044@bug>
Date:   Sun, 2 Aug 2020 13:51:24 +0200
From:   Pavel Machek <pavel@....cz>
To:     Vitaly Chikunov <vt@...linux.org>
Cc:     Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>,
        peterz@...radead.org, Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        linux-kernel@...r.kernel.org, "Dmitry V. Levin" <ldv@...linux.org>
Subject: Re: Should perf version match kernel version?

Hi!

> > >We strive to have it all compatible, older perf should work on newer
> > >kernel and newer perf should work on older kernel.
> > >
> > >How well it's all tested is another.
> > >
> > >Personally I often use a very old perf.
> > 
> > Yeah, never was a requirement, if you find some problem using a new perf on an old kernel or the other way around, please report.
> 
> That's great to know. Thanks for the answers!

Someone should tell debian, AFAICT they believe perf version == kernel version is a 
requirement...and so says their manpage.

										Pavel

-- 
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