From: Dave Hansen <dave.hansen@intel.com>
To: Wangyang Guo <wangyang.guo@intel.com>,
Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: Tianyou Li <tianyou.li@intel.com>, Tim Chen <tim.c.chen@linux.intel.com>
Subject: Re: [PATCH RESEND^2] x86/paravirt: add backoff mechanism to virt_spin_lock
Date: Wed, 13 Aug 2025 07:23:39 -0700 [thread overview]
Message-ID: <a79307f2-e6be-4e59-a74e-16e09ed69e8f@intel.com> (raw)
In-Reply-To: <20250813005043.1528541-1-wangyang.guo@intel.com>
On 8/12/25 17:50, Wangyang Guo wrote:
> The optimization can improves SpecCPU2017 502.gcc_r benchmark by ~4% for
> 288 cores VM on Intel Xeon 6 E-cores platform.
Which specific locks are getting contended?
next prev parent reply other threads:[~2025-08-13 14:23 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-13 0:50 [PATCH RESEND^2] x86/paravirt: add backoff mechanism to virt_spin_lock Wangyang Guo
2025-08-13 14:23 ` Dave Hansen [this message]
2025-08-14 1:14 ` Guo, Wangyang
2025-08-13 14:33 ` Peter Zijlstra
2025-08-14 1:26 ` Guo, Wangyang
2025-08-14 3:10 ` [????] " Li,Rongqing
2025-08-14 10:41 ` Peter Zijlstra
2025-08-15 2:47 ` Guo, Wangyang
2025-08-14 10:39 ` Peter Zijlstra
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