Date: Sun, 31 Mar 1996 10:02:27 +0200 (MET DST) From: Andreas Klemm <andreas@knobel.gun.de> To: Terry Lambert <terry@lambert.org> Cc: j@uriah.heep.sax.de, current@FreeBSD.org Subject: Re: FreeBSD performance vs BSD/OS Message-ID: <Pine.BSF.3.92.960331094228.215A-100000@knobel.gun.de> In-Reply-To: <199603302008.NAA09522@phaeton.artisoft.com>
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-----BEGIN PGP SIGNED MESSAGE----- On Sat, 30 Mar 1996, Terry Lambert wrote: > > > > > HZ values? > > > > > > > > Hi Terry ! > > > > > > > > Did nothing special ... only compiled and installed perl, and > > > > after that I did a make test in the ports directory... > > > > > > > > So it's just the normal one I think... > > > > > > The tests may assume HZ=60 (it does on most machines). HZ on BSD > > > is 100. > > > > > > This would make BSD seem to perform 40% slower than other systems. > > > > Ah, now I get it ... ;-) But I thought, HZ on BSD is about 128 ... ?! > > Hmmmm.... > > It should be, since it would mean we could move the HZ clock of the > TOD clock, but I don't think it is. Morning Terry ! If I remember right this was discussed already some months ago and the result was, that freebsd has 128 HZ. BTW, I think it was Joerg, whi told me that. And if you run a benchmark like ssba (I think it was this one) that tries to figure out HZ itself, then you get values about 128 or 130... Perhaps someone else can make this more clear ?! I digged around in the kernel sources in microtime and some other places, but didn't find the right place... Perhaps this should go into a manpage ?! rtc for real time clock or somewhere else ??? Andreas /// - -- andreas@knobel.gun.de /\/\___ Wiechers & Partner Datentechnik GmbH Andreas Klemm ___/\/\/ $$ Support Unix - aklemm@wup.de $$ pgp p-key http://www-swiss.ai.mit.edu/~bal/pks-toplev.html >>> powered by <<< ftp://sunsite.unc.edu/pub/Linux/system/Printing/aps-491.tgz >>> FreeBSD <<< -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMV48FPMLpmkD/U+FAQGfrgP/fyk7nT76uKoSJnI6+CTii8fDUicNHqMJ BsAItjJuavWXwoJcNkBv+6q9gwdI4l/gObytpr0Detw1tnHgB5K31VYfGoUQyiJC TOJE4sNHe/BFNnwBo/5YOGQ6IYFX++65oxmGtpu8XdZ1ISomVDoFR3cLpUHbnYSn eo5qBKroqy4= =1ouB -----END PGP SIGNATURE-----
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