Date: Thu, 8 Jul 2010 18:44:38 +0200 From: Roland Smith <rsmith@xs4all.nl> To: Jozsi Avadkan <jozsi.avadkan@gmail.com> Cc: FreeBSD Mailing list <freebsd-questions@freebsd.org> Subject: Re: slow down dd - how? Message-ID: <20100708164437.GA21881@slackbox.erewhon.net> In-Reply-To: <1278604252.12047.13.camel@localhost> References: <1278604252.12047.13.camel@localhost>
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--AqsLC8rIMeq19msA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jul 08, 2010 at 05:50:52PM +0200, Jozsi Avadkan wrote: > How can I slow down dd? Play with the block size parameter (bs). Smaller block sizes means more reads. The default is 512 bytes, which is very small. =20 > I don't want to slow down the pc, when generating a big file [~40 > GByte]. >=20 > Does ionice work properly? I think ionice only works on Linux. Why not use nice(1)? Roland --=20 R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) --AqsLC8rIMeq19msA Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (FreeBSD) iEYEARECAAYFAkw2AHUACgkQEnfvsMMhpyVj4ACfQSN8mTpig2V+x/9S9yGb2zWK /K8An2ruZV6BaAONg2PFEczzm4w3Uqmq =LaIz -----END PGP SIGNATURE----- --AqsLC8rIMeq19msA--
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