Date: Thu, 12 Nov 2009 16:05:15 +1100 From: Peter Jeremy <peterjeremy@acm.org> To: Bruce Evans <brde@optusnet.com.au> Cc: svn-src-head@freebsd.org, Xin LI <delphij@freebsd.org>, svn-src-all@freebsd.org, src-committers@freebsd.org, d@delphij.net Subject: Re: svn commit: r198848 - head/bin/ps Message-ID: <20091112050515.GA15002@server.vk2pj.dyndns.org> In-Reply-To: <20091111230915.B3510@besplex.bde.org> References: <200911030928.nA39SjLx085597@svn.freebsd.org> <20091103214231.H23957@delplex.bde.org> <4AF4B6B2.3090706@delphij.net> <20091111230915.B3510@besplex.bde.org>
next in thread | previous in thread | raw e-mail | index | archive | help
--d6Gm4EdcadzBjdND Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2009-Nov-11 23:22:36 +1100, Bruce Evans <brde@optusnet.com.au> wrote: >On Fri, 6 Nov 2009, Xin LI wrote: >> Will it sound reasonable to divide pcpu by ncpu and cap the number at 10= 0? > >I don't like that. It would break scripts even more than units changes. >It is hard for users to interpret too. Suddenly, processes taking >100% of 1 CPU would take 12.5% of 8 CPUs on a system with 8 CPUs, and >different %CPU on systems with a different number of CPUs. Solaris does this. I found it particularly annoying for identifying spinning, single-threaded processes - it's not as immediately obvious that 1.6% CPU means a spinning process on a T5000, and the granularity gets worse. >Just print %CPU in %4.0f format when it is >=3D 99.5 (or whatever rounds >to 100.0). This works up to 999.5 %CPU. Actually, %4.0f works up to 9999.5 %CPU because there's no '.' in the result. I think this is an excellent solution. And since FreeBSD currently has a hard limit of 64 CPUs, it's unlikely to be exceeded for a while. --=20 Peter Jeremy --d6Gm4EdcadzBjdND Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.13 (FreeBSD) iEYEARECAAYFAkr7l4sACgkQ/opHv/APuIcj9ACfR+Ducpm4YRXDe3PfwM1D+H7E MbkAn0xiVXD1VR6SOsBdDzKmwK2oyvCd =1XgZ -----END PGP SIGNATURE----- --d6Gm4EdcadzBjdND--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20091112050515.GA15002>