From: Nadav Amit <namit@vmware.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>, Borislav Petkov <bp@alien8.de>,
Linux List Kernel Mailing <linux-kernel@vger.kernel.org>,
Andy Lutomirski <luto@kernel.org>,
Dave Hansen <dave.hansen@intel.com>
Subject: Re: [PATCH] x86/tlb: Revert: Align TLB invalidation info
Date: Wed, 17 Apr 2019 04:52:39 +0000 [thread overview]
Message-ID: <265A9BFA-8111-4ED8-8B49-0A15BA4EF9BA@vmware.com> (raw)
In-Reply-To: <20190416182831.GU4038@hirez.programming.kicks-ass.net>
> On Apr 16, 2019, at 11:28 AM, Peter Zijlstra <peterz@infradead.org> wrote:
>
> On Tue, Apr 16, 2019 at 10:45:05AM -0700, Linus Torvalds wrote:
>> So very much Ack on that patch, but maybe we could do a bit more cleanup here?
>
> Yeah, Nadav was going to try and clean that up. But I figured we should
> get this revert in and backported while it's hot :-)
I will get to it hopefully next week. I need to do some benchmarking to see
the impact of getting it off the stack, although usually the IPI itself
dominates the TLB shootdown performance overhead.
prev parent reply other threads:[~2019-04-17 4:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-16 8:03 Peter Zijlstra
2019-04-16 8:13 ` [tip:x86/urgent] x86/mm/tlb: Revert "x86/mm: Align TLB invalidation info" tip-bot for Peter Zijlstra
2019-04-16 17:45 ` [PATCH] x86/tlb: Revert: Align TLB invalidation info Linus Torvalds
2019-04-16 18:28 ` Peter Zijlstra
2019-04-17 4:52 ` Nadav Amit [this message]
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