From: Eric Blake <eblake@redhat.com>
To: "Lluís Vilanova" <vilanova@ac.upc.edu>, qemu-devel@nongnu.org
Cc: "Eduardo Habkost" <ehabkost@redhat.com>,
"Peter Crosthwaite" <crosthwaite.peter@gmail.com>,
"Stefan Hajnoczi" <stefanha@gmail.com>,
"Riku Voipio" <riku.voipio@iki.fi>,
"Markus Armbruster" <armbru@redhat.com>,
"Luiz Capitulino" <lcapitulino@redhat.com>,
"Blue Swirl" <blauwirbel@gmail.com>,
"Stefan Hajnoczi" <stefanha@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Andreas Färber" <afaerber@suse.de>,
"Richard Henderson" <rth@twiddle.net>
Subject: Re: [Qemu-devel] [PATCH v4 8/9] trace: [tcg] Add per-vCPU tracing states for events with the 'vcpu' property
Date: Tue, 19 Jan 2016 15:06:23 -0700 [thread overview]
Message-ID: <569EB35F.6070707@redhat.com> (raw)
In-Reply-To: <145287591675.11400.12508957244344480632.stgit@localhost>
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On 01/15/2016 09:38 AM, Lluís Vilanova wrote:
> Each event with the 'vcpu' property gets a per-vCPU dynamic tracing state.
>
> The set of enabled events with the 'vcpu' and 'tcg' properties is used
> to select a per-vCPU physical TB cache. The number of events with both
> properties is used to select the number of physical TB caches, and a
> bitmap of the identifiers of such enabled events is used to select a
> physical TB cache.
>
> Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
> ---
> +++ b/qmp-commands.hx
> @@ -4594,6 +4599,13 @@ trace-event-set-state
>
> Set the state of events.
>
> +Arguments:
> +
> +- "name": Event name pattern (json-string).
> +- "enable": Whether to enable or disable the event (json-bool).
> +- "ignore-unavailable": Whether to ignore errors for events that cannot be changed (json-bool, optional).
Long line; wrap to keep it in 80 columns.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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next prev parent reply other threads:[~2016-01-19 22:06 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-15 16:37 [Qemu-devel] [PATCH v4 0/9] trace: Per-vCPU tracing states Lluís Vilanova
2016-01-15 16:37 ` [Qemu-devel] [PATCH v4 1/9] trace: Add support for vCPU pointers in trace events Lluís Vilanova
2016-01-15 16:38 ` [Qemu-devel] [PATCH v4 2/9] trace: Add 'vcpu' event property Lluís Vilanova
2016-01-15 16:38 ` [Qemu-devel] [PATCH v4 3/9] trace: [tcg] Identify events with the 'vcpu' property Lluís Vilanova
2016-01-15 16:38 ` [Qemu-devel] [PATCH v4 4/9] exec: [tcg] Refactor flush of per-CPU virtual TB cache Lluís Vilanova
2016-01-15 16:38 ` [Qemu-devel] [PATCH v4 5/9] exec: [tcg] Use multiple physical TB caches Lluís Vilanova
2016-01-15 16:38 ` [Qemu-devel] [PATCH v4 6/9] exec: [tcg] Track which vCPU is performing translation and execution Lluís Vilanova
2016-01-15 16:38 ` [Qemu-devel] [PATCH v4 7/9] disas: Remove unused macro '_' Lluís Vilanova
2016-01-15 16:38 ` [Qemu-devel] [PATCH v4 8/9] trace: [tcg] Add per-vCPU tracing states for events with the 'vcpu' property Lluís Vilanova
2016-01-18 10:50 ` Paolo Bonzini
2016-01-18 11:55 ` Lluís Vilanova
2016-01-19 22:06 ` Eric Blake [this message]
2016-01-15 16:38 ` [Qemu-devel] [PATCH v4 9/9] trace: [tcg] Generate TCG code to trace guest events on a per-vCPU basis Lluís Vilanova
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