From: "Michael Büsch" <m@bues.ch>
To: Amos Kong <akong@redhat.com>
Cc: herbert@gondor.apana.org.au, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org, mpm@selenic.com,
amit.shah@redhat.com
Subject: Re: [PATCH v2 3/3] hw_random: increase schedule timeout in rng_dev_read()
Date: Tue, 16 Sep 2014 17:01:16 +0200 [thread overview]
Message-ID: <20140916170116.65f8d883@wiggum> (raw)
In-Reply-To: <20140916002740.GA5671@zen>
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On Tue, 16 Sep 2014 08:27:40 +0800
Amos Kong <akong@redhat.com> wrote:
> Set timeout to 10:
> non-smp guest with quick backend (1.2M/s) -> about 490K/s)
That sounds like an awful lot. This is a 60% loss in throughput.
I don't think we can live with that.
--
Michael
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next prev parent reply other threads:[~2014-09-16 15:01 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-15 16:02 [PATCH v2 0/3] fix stuck in accessing hwrng attributes Amos Kong
2014-09-15 16:02 ` [PATCH v2 1/3] virtio-rng cleanup: move some code out of mutex protection Amos Kong
2014-09-15 16:13 ` Michael Büsch
[not found] ` <20140915181320.28f642d6@wiggum>
2014-09-16 0:30 ` Amos Kong
2014-09-15 16:02 ` [PATCH v2 2/3] hw_random: fix stuck in catting hwrng attributes Amos Kong
2014-09-18 2:43 ` Rusty Russell
2014-09-18 2:48 ` [PATCH 1/5] hw_random: place mutex around read functions and buffers Rusty Russell
2014-09-18 2:48 ` [PATCH 2/5] hw_random: use reference counts on each struct hwrng Rusty Russell
2014-09-18 2:48 ` [PATCH 3/5] hw_random: fix unregister race Rusty Russell
2014-10-21 14:15 ` Herbert Xu
2014-11-03 15:24 ` Amos Kong
2014-09-18 2:48 ` [PATCH 4/5] hw_random: don't double-check old_rng Rusty Russell
2014-09-18 2:48 ` [PATCH 5/5] hw_random: don't init list element we're about to add to list Rusty Russell
[not found] ` <1411008506-28349-2-git-send-email-rusty@rustcorp.com.au>
2014-09-18 12:22 ` [PATCH 2/5] hw_random: use reference counts on each struct hwrng Amos Kong
2014-09-18 12:47 ` [PATCH v2 2/3] hw_random: fix stuck in catting hwrng attributes Amos Kong
2014-09-15 16:02 ` [PATCH v2 3/3] hw_random: increase schedule timeout in rng_dev_read() Amos Kong
[not found] ` <1410796949-2221-4-git-send-email-akong@redhat.com>
2014-09-15 16:13 ` Michael Büsch
[not found] ` <20140915181331.4e3f5fed@wiggum>
2014-09-16 0:27 ` Amos Kong
2014-09-16 15:01 ` Michael Büsch [this message]
2014-09-17 9:30 ` [PATCH v2 0/3] fix stuck in accessing hwrng attributes Herbert Xu
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