Date: Mon, 20 Apr 2020 10:53:00 +0200 From: Andrea Venturoli <ml@netfence.it> To: freebsd-virtualization@freebsd.org Cc: Michael Reifenberger <Michael@reifenberger.com>, Harry Schmalzbauer <freebsd@omnilan.de> Subject: Re: bhyve win-guest benchmark comparing Message-ID: <69553fba-4ee5-67dc-a052-b58bb8100061@netfence.it> In-Reply-To: <20200419172345.Horde.alwm2Bn67wrcUt5a0zVjQ9f@app.eeeit.de> References: <9e7f4c01-6cd1-4045-1a5b-69c804b3881b@omnilan.de> <f5a78199-9306-bccc-606a-23c30f56b0f1@omnilan.de> <20200419172345.Horde.alwm2Bn67wrcUt5a0zVjQ9f@app.eeeit.de>
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On 2020-04-19 19:23, Michael Reifenberger wrote: > Hi, > r358848 has been MFC'd to stable/12 Hello. Can I ask some questions about this? First: this patch seems to apply cleanly to 12.1. Is it safe? At least worth testing? Second. IIUIC it's useless to test this on an AMD system, since the patch only involves Intel CPUs. Right? Xeon are not affected, since they have vAPIC, so they should be already running as fast as possible. Correct? The description says "APIC virtualization is a Xeon feature that is missing on most (all?) desktop CPUs". Is there a way to check? Should it be reported as a CPU feature at boot? With which string? bye & Thanks av.
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