From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754066AbaIPPBp (ORCPT ); Tue, 16 Sep 2014 11:01:45 -0400 Received: from bues.ch ([80.190.117.144]:42701 "EHLO bues.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753000AbaIPPBo (ORCPT ); Tue, 16 Sep 2014 11:01:44 -0400 Date: Tue, 16 Sep 2014 17:01:16 +0200 From: Michael =?UTF-8?B?QsO8c2No?= To: Amos Kong Cc: virtualization@lists.linux-foundation.org, kvm@vger.kernel.org, herbert@gondor.apana.org.au, mpm@selenic.com, rusty@rustcorp.com.au, amit.shah@redhat.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 3/3] hw_random: increase schedule timeout in rng_dev_read() Message-ID: <20140916170116.65f8d883@wiggum> In-Reply-To: <20140916002740.GA5671@zen> References: <1410796949-2221-1-git-send-email-akong@redhat.com> <1410796949-2221-4-git-send-email-akong@redhat.com> <20140915181331.4e3f5fed@wiggum> <20140916002740.GA5671@zen> X-Mailer: Claws Mail 3.10.1 (GTK+ 2.24.24; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; boundary="Sig_/7=Ee=1KEUuR5Fsm=4e3N5nX"; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/7=Ee=1KEUuR5Fsm=4e3N5nX Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Tue, 16 Sep 2014 08:27:40 +0800 Amos Kong 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. --=20 Michael --Sig_/7=Ee=1KEUuR5Fsm=4e3N5nX Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBAgAGBQJUGFC8AAoJEPUyvh2QjYsO1rQP/3BUqE2P6lKKSVE6J0l47J/1 dgNKWEyQBPEa4wz7jcaQkniVEfTRbn5xZVFuVtdWGVLcLa3XCYWgveo3Jo4f/Aon 6t0nUZXEeENbi4hBYYrZ8LnG+12SqcYvaVSNCrTL4fCmfcYEv3OUdUiEYh5iw1Py iFKDfUzohhbKlObgm2rMOCNXTv3ZPwKalE6cxvbKpbaAe/wVXHgVWhK9rGnQmzpA Lk56gn/G7cDJ7G+HMT06p0qe2/QyFAJLNKVr8aOqCHMftRBkw8VhFYKX6P0EW7RI ARH100K8ZPjxyyYjy3+rPbBSTEGX5ioddqAm1nwzMlRkXc9xB/Q34rlt0eoMRKmF eiU9DcKu5DvrVsnmvj8cO1Htz2lYUMQsYRn2K5RIw0Ogej4buZHf0fkiSDwUupAV CdTnekusbz58CwQSjAnikBvL0HykytmiQmjt43/BW41D4J5v6AETmO9pcqPORxle CNTnPvAdeRlO5iEhyw3XTKzBidDHVi4h8uH311gWeXtq/NcfRcUpRHYWHBd6BB8w pEYw0ukyxNkHFIDu0a7h88DgcwfvmViK5Cvl3z1djkIKaPRrONCkaXv+mLCz6LrO kcf9lM8LMhWvyzo8/+gs3miFMROCNG+u7W3r1cBraZ8MlD+ZOp1Je9rvEuXFHe1M 45cPqwNkbt4hswTlBjCl =8+vG -----END PGP SIGNATURE----- --Sig_/7=Ee=1KEUuR5Fsm=4e3N5nX--