This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


[Xen-devel] Re: [PATCH 04/15] xen/trace: add multicall tracing

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: [Xen-devel] Re: [PATCH 04/15] xen/trace: add multicall tracing
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Tue, 21 Jun 2011 10:11:25 -0700
Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>, Xen Devel <Xen-devel@xxxxxxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>
Delivery-date: Tue, 21 Jun 2011 10:12:45 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <20110621135256.GA28229@xxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <cover.1308607697.git.jeremy.fitzhardinge@xxxxxxxxxx> <a0fe82ae10c0a00c31e60ffacbeec6f49eba93a5.1308607697.git.jeremy.fitzhardinge@xxxxxxxxxx> <20110621135256.GA28229@xxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20110428 Fedora/3.1.10-1.fc15 Lightning/1.0b3pre Thunderbird/3.1.10
On 06/21/2011 06:52 AM, Konrad Rzeszutek Wilk wrote:
>> +TRACE_EVENT(xen_mc_entry,
>> +        TP_PROTO(struct multicall_entry *mc, unsigned nargs),
>> +        TP_ARGS(mc, nargs),
>> +        TP_STRUCT__entry(
>> +                __field(unsigned short, op)
>> +                __field(unsigned short, nargs)
>> +                __array(unsigned long, args, 6)
> Not 'unsigned long' for op?

I wanted to save space in the trace buffer.  I think hypercall numbers
are all small?


Xen-devel mailing list

<Prev in Thread] Current Thread [Next in Thread>