From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: carsteno-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org
Cc: Jimi Xenidis <jimix-aZOuKsOsJu3MbYB6QlFGEg@public.gmane.org>,
Stephen Rothwell <sfr-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org>,
Xen Mailing List
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<jmk-zzFmDc4TPjtKvsKVC3L/VUEOCMrvLtNR@public.gmane.org>,
Herbert Xu
<herbert-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>,
kvm-devel
<kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
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virtualization
<virtualization-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
Suzanne McIntosh
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Christian Borntraeger
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Subject: Re: [PATCH RFC 3/3] virtio infrastructure: example block driver
Date: Thu, 31 May 2007 20:36:24 +0300 [thread overview]
Message-ID: <465F0798.2070708@qumranet.com> (raw)
In-Reply-To: <465EFF72.5070100-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
Carsten Otte wrote:
> Troy Benjegerdes wrote:
>
>> This kind of a claim needs some benchmark data to document it.
>>
> We've implemented both for our vdisk driver on 390. At least on our
> platform, merging in the host is preferable because vmenter/vmexit is
> very fast and we would merge twice because we submit the result via
> io_submit() system call from host userland.
>
If a single hypercall can submit multiple requests, then this may work
well for the newcomer archs too.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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next prev parent reply other threads:[~2007-05-31 17:36 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-31 12:19 [PATCH RFC 1/3] virtio infrastructure Rusty Russell
[not found] ` <1180613947.11133.58.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-05-31 12:20 ` [PATCH RFC 2/3] virtio infrastructure: example net driver Rusty Russell
2007-05-31 12:21 ` [PATCH RFC 3/3] virtio infrastructure: example block driver Rusty Russell
[not found] ` <1180614044.11133.61.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-05-31 12:21 ` Rusty Russell
[not found] ` <1180614091.11133.63.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-05-31 12:57 ` Carsten Otte
2007-05-31 15:02 ` [kvm-devel] " Troy Benjegerdes
2007-05-31 23:39 ` Rusty Russell
[not found] ` <465EC637.7020504-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2007-05-31 15:02 ` Troy Benjegerdes
[not found] ` <20070531150206.GB6474-na1kE3HDu0idQnJuSAr7PQ@public.gmane.org>
2007-05-31 17:01 ` Carsten Otte
2007-05-31 17:36 ` [kvm-devel] " Avi Kivity
[not found] ` <465EFF72.5070100-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2007-05-31 17:36 ` Avi Kivity [this message]
2007-05-31 17:01 ` Carsten Otte
2007-05-31 23:39 ` Rusty Russell
2007-06-01 7:10 ` [kvm-devel] " Carsten Otte
[not found] ` <1180654765.10999.6.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-01 7:10 ` Carsten Otte
[not found] ` <465FC65C.6020905-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2007-06-01 13:13 ` Jens Axboe
[not found] ` <20070601131315.GW32105-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
2007-06-04 13:40 ` Carsten Otte
2007-06-04 13:43 ` [kvm-devel] " Jens Axboe
[not found] ` <4664164A.40604-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2007-06-04 13:43 ` Jens Axboe
[not found] ` <20070604134322.GC32105-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
2007-06-04 13:52 ` Rusty Russell
[not found] ` <1180965161.25878.47.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-04 13:54 ` Jens Axboe
[not found] ` <20070604135433.GG32105-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
2007-06-04 14:12 ` Carsten Otte
[not found] ` <46641DC9.5050600-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2007-06-04 14:31 ` Jens Axboe
2007-06-04 14:31 ` [kvm-devel] " Jens Axboe
2007-06-04 14:12 ` Carsten Otte
2007-06-04 13:54 ` Jens Axboe
2007-06-04 13:52 ` Rusty Russell
2007-06-04 13:40 ` Carsten Otte
2007-06-02 9:28 ` Rusty Russell
[not found] ` <1180776482.9228.22.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-04 12:53 ` Carsten Otte
2007-06-04 12:53 ` [kvm-devel] " Carsten Otte
2007-06-01 13:13 ` Jens Axboe
2007-06-02 9:28 ` Rusty Russell
2007-05-31 12:57 ` Carsten Otte
2007-05-31 12:53 ` [PATCH RFC 1/3] virtio infrastructure Carsten Otte
2007-05-31 13:01 ` Dor Laor
2007-06-02 6:30 ` Avi Kivity
2007-06-02 9:50 ` [kvm-devel] " Rusty Russell
[not found] ` <46610E8D.10706-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-06-02 9:50 ` Rusty Russell
2007-06-03 5:28 ` [kvm-devel] " Avi Kivity
[not found] ` <1180777836.9228.44.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-03 5:28 ` Avi Kivity
[not found] ` <46625192.5020108-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-06-03 10:29 ` Rusty Russell
2007-06-03 11:39 ` [Xen-devel] Re: [kvm-devel] " Avi Kivity
[not found] ` <1180866540.17442.74.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-03 11:39 ` [Xen-devel] " Avi Kivity
2007-06-03 23:53 ` [Xen-devel] Re: [kvm-devel] " Rusty Russell
[not found] ` <4662A86A.7010706-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-06-03 23:53 ` [Xen-devel] " Rusty Russell
[not found] ` <1180914836.17442.104.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-04 9:55 ` Avi Kivity
2007-06-04 10:32 ` [Xen-devel] Re: [kvm-devel] " Herbert Xu
2007-06-04 11:19 ` Rusty Russell
[not found] ` <4663E18D.4030007-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-06-04 10:32 ` [Xen-devel] " Herbert Xu
2007-06-04 11:19 ` Rusty Russell
[not found] ` <1180955964.25878.27.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-04 11:25 ` Avi Kivity
2007-06-04 11:40 ` [kvm-devel] " Rusty Russell
[not found] ` <4663F6AC.7070100-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-06-04 11:40 ` Rusty Russell
2007-06-04 12:17 ` Herbert Xu
2007-06-04 12:17 ` [kvm-devel] " Herbert Xu
2007-06-04 11:25 ` Avi Kivity
2007-06-04 9:55 ` [Xen-devel] " Avi Kivity
2007-06-03 10:29 ` Rusty Russell
2007-05-31 12:20 ` [PATCH RFC 2/3] virtio infrastructure: example net driver Rusty Russell
2007-05-31 12:53 ` [kvm-devel] [PATCH RFC 1/3] virtio infrastructure Carsten Otte
2007-05-31 13:01 ` Dor Laor
2007-06-01 23:35 ` Santos, Jose Renato G
2007-06-02 10:12 ` [Xen-devel] " Rusty Russell
2007-06-02 10:12 ` Rusty Russell
2007-06-04 21:14 ` [Xen-devel] " Santos, Jose Renato G
[not found] ` <1180779167.9228.66.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-04 21:14 ` Santos, Jose Renato G
2007-06-04 21:19 ` Jeremy Fitzhardinge
2007-06-05 1:44 ` Rusty Russell
[not found] ` <08CA2245AFCF444DB3AC415E47CC40AFBD2FD4-VylnnfFjWmASZAcGdq5asR6epYMZPwEe5NbjCUgZEJk@public.gmane.org>
2007-06-04 21:19 ` Jeremy Fitzhardinge
2007-06-05 2:05 ` Santos, Jose Renato G
[not found] ` <466481ED.8050209-TSDbQ3PG+2Y@public.gmane.org>
2007-06-05 2:05 ` Santos, Jose Renato G
2007-06-05 2:27 ` Rusty Russell
[not found] ` <08CA2245AFCF444DB3AC415E47CC40AFBD30B4-VylnnfFjWmASZAcGdq5asR6epYMZPwEe5NbjCUgZEJk@public.gmane.org>
2007-06-05 2:27 ` Rusty Russell
2007-06-05 2:49 ` Santos, Jose Renato G
2007-06-05 2:49 ` [Xen-devel] " Santos, Jose Renato G
2007-06-05 1:44 ` Rusty Russell
2007-06-05 2:39 ` Santos, Jose Renato G
[not found] ` <1181007892.25878.112.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-05 2:39 ` Santos, Jose Renato G
2007-06-01 23:35 ` Santos, Jose Renato G
2007-06-02 6:30 ` [kvm-devel] " Avi Kivity
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