Date: Tue, 10 Feb 2009 19:57:06 +0100 From: Sebastiaan van Erk <sebster@sebster.com> Cc: freebsd-scsi@freebsd.org Subject: Re: Disk performance on ESXi with FreeBSD 7.1 Message-ID: <4991CE02.4060202@sebster.com> In-Reply-To: <4991C6D5.4050400@samsco.org> References: <4991BD19.1000409@sebster.com> <4991C6D5.4050400@samsco.org>
next in thread | previous in thread | raw e-mail | index | archive | help
[-- Attachment #1 --] Hi Scott, >> <n> 1 2 4 >> freebsd 12.0009 13.6348 12.9402 (MB/s) >> linux 376.145 651.314 634.649 (MB/s) >> >> Thus there is approx a factor 30 difference for dbench 1, and I cannot >> imagine linux being that much faster just due to some performance >> tuning kernel parameters. > sudo camcontrol tags da0 > > If it returns something like this: > > (pass0:mpt0:0:0:0): device openings: 1 Yep, exactly that; the bt0 driver returned 2. > then run the following command: > > sudo camcontrol tags da0 -N 64 (pass0:mpt0:0:0:0): tagged openings now 64 (pass0:mpt0:0:0:0): device openings: 64 > If this works in improving performance, it can be put into a startup > script. I have no idea why the controller is misbehaving with this yet, > but I'm working on it. > > Scott Unfortunately I'm still stuck at around 12-14MB/s on both the bt0 and mpt0 controllers, so the performance is not up. Thanks a lot though for the help, if I can do/test anything else, I'm right on it. Regards, Sebastiaan [-- Attachment #2 --] 0 *H 01 0 + 0 *H Q00lS| 6$1-~j0 *H 0b1 0 UZA1%0#U Thawte Consulting (Pty) Ltd.1,0*U#Thawte Personal Freemail Issuing CA0 080630135157Z 090630135157Z0h10Uvan Erk10U* Sebastiaan10USebastiaan van Erk1"0 *H sebster@sebster.com0"0 *H 0 Va\bEnݚa<M8ʄ^tv>x73bohi2oqS_¶Bm^p* I x"9 pt!j ar#)n)^? 'z<).+Ѐ4ig R'UP*\Ւ ,?.;?f BܯTzM IDվCK*3Yŧ mcaztxʐsq/ 00.0 U 0sebster@sebster.com0 U 0 0 *H KT4W6ӽq] tS` %f1 G:H b zJj$EjE'JV~-VbVnJZ E/`@@04!+T: c پf`$Z=1#|oG[OB RG00lS| 6$1-~j0 *H 0b1 0 UZA1%0#U Thawte Consulting (Pty) Ltd.1,0*U#Thawte Personal Freemail Issuing CA0 080630135157Z 090630135157Z0h10Uvan Erk10U* Sebastiaan10USebastiaan van Erk1"0 *H sebster@sebster.com0"0 *H 0 Va\bEnݚa<M8ʄ^tv>x73bohi2oqS_¶Bm^p* I x"9 pt!j ar#)n)^? 'z<).+Ѐ4ig R'UP*\Ւ ,?.;?f BܯTzM IDվCK*3Yŧ mcaztxʐsq/ 00.0 U 0sebster@sebster.com0 U 0 0 *H KT4W6ӽq] tS` %f1 G:H b zJj$EjE'JV~-VbVnJZ E/`@@04!+T: c پf`$Z=1#|oG[OB RG0?0 0 *H 01 0 UZA10U Western Cape10U Cape Town10U Thawte Consulting1(0&U Certification Services Division1$0"UThawte Personal Freemail CA1+0) *H personal-freemail@thawte.com0 030717000000Z 130716235959Z0b1 0 UZA1%0#U Thawte Consulting (Pty) Ltd.1,0*U#Thawte Personal Freemail Issuing CA00 *H 0 Ħ<UsUNʙZ hup [v :aQP 0cZ,p+Z?qV˯< 6$*+w=+>@dקe*TH<a@ dr` 00U 0 0CU <0:08642http://crl.thawte.com/ThawtePersonalFreemailCA.crl0 U 0)U "0 0 10UPrivateLabel2-1380 *H HP . fgCL!6 -6/ P p<ab:~ t%Pb'qW%ݩ9 Oe_N4[5MwV!x!5$ F]_eO1q0m0v0b1 0 UZA1%0#U Thawte Consulting (Pty) Ltd.1,0*U#Thawte Personal Freemail Issuing CAS| 6$1-~j0 + 0 *H 1 *H 0 *H 1 090210185706Z0# *H 1o*ٚHK2'3ęXWA0_ *H 1R0P0 `He0 *H 0*H 0 *H @0+0 *H (0 +71x0v0b1 0 UZA1%0#U Thawte Consulting (Pty) Ltd.1,0*U#Thawte Personal Freemail Issuing CAS| 6$1-~j0 *H 1xv0b1 0 UZA1%0#U Thawte Consulting (Pty) Ltd.1,0*U#Thawte Personal Freemail Issuing CAS| 6$1-~j0 *H : _u7kvYT!+; j8Nk|\],gW ﭏle?q5$j^P̀a$[ H\WL{i R:;<@wzIv{[SSނg#!ls7yBpKP w!E:PdP]S 78>h!xXƈej 4mQ skg?9pfK{q|ꩀ'kpIyb%0d TP^_
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4991CE02.4060202>