From: Avi Kivity <avi@redhat.com>
To: v.tolstov@selfip.ru
Cc: kvm@vger.kernel.org
Subject: Re: virtio module question...
Date: Sun, 01 Aug 2010 20:04:28 +0300 [thread overview]
Message-ID: <4C55A91C.7000605@redhat.com> (raw)
In-Reply-To: <1280481216.1336.1.camel@vase.work>
On 07/30/2010 12:13 PM, Vasiliy G Tolstov wrote:
> Good night or morning....
>
> If i need to some kvm module, that runs in virtualized environment and
> reports some statistics to qemu (disk free space, memory usage, cpu
> utilization) what i need to write?
> I need kernel module, because userspace utilities under heavy load can't send such information via
> network (for example snmp under load does not respond).
>
> Does kvm have skeleton module, what i can use and append code needed
> for me?
I recommend using virtio-serial in userspace. If your load is very
high, you can use mlockall() and sched_setscheduler() to keep the
process in memory and on a cpu.
If you absolutely need a kernel module, you can base it off virtio-serial.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
prev parent reply other threads:[~2010-08-01 17:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-30 9:13 virtio module question Vasiliy G Tolstov
2010-08-01 17:04 ` Avi Kivity [this message]
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