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From: | Richard Henderson |
Subject: | Re: [Qemu-devel] [PATCH v3 0/6] trace: [tcg] Optimize per-vCPU tracing states with separate TB caches |
Date: | Fri, 23 Dec 2016 10:05:53 -0800 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 |
On 12/22/2016 10:35 AM, Lluís Vilanova wrote: > To handle both issues, this series replicates the shared physical TB cache, > creating a separate physical TB cache for every combination of event states > (those with the 'vcpu' and 'tcg' properties). Then, all vCPUs tracing the same > events will use the same physical TB cache. Why do we need to "split the physical TB cache" as opposed to simply including the trace state into the TB hash function? r~
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