From: Joe Buehler <aspam@cox.net>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: kvm@vger.kernel.org
Subject: Re: probable vm exit latency issue?
Date: Fri, 15 Dec 2017 15:24:37 -0500 [thread overview]
Message-ID: <5A342F85.9070406@cox.net> (raw)
In-Reply-To: <mL8E1w02Z1iuWrx01L8FMi>
Konrad Rzeszutek Wilk wrote:
> Um. Don't use IDE? Use VirtIO.
I will revert to virtio. It was virtio originally, I changed it to ide since that is what is used on the box the works.
Perhaps the difference between boxes is not the driver but the fact that the working box has an SSD disk and the new box has rotating disks.
To eliminate disk I/O entirely I am trying Ubuntu's "overlayroot". However, I am still getting enormous latency from ata_bmdma_start calls, just nowhere near as often.
Joe Buehler
next prev parent reply other threads:[~2017-12-15 20:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-15 19:36 probable vm exit latency issue? Joe Buehler
2017-12-15 20:08 ` Konrad Rzeszutek Wilk
[not found] ` <mL8E1w02Z1iuWrx01L8FMi>
2017-12-15 20:24 ` Joe Buehler [this message]
2017-12-15 20:48 ` Joe Buehler
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