Date: Sun, 15 Nov 2009 17:30:47 -0600 From: CyberLeo Kitsana <cyberleo@cyberleo.net> To: James Phillips <anti_spam256@yahoo.ca> Cc: freebsd-questions@freebsd.org Subject: Re: freebsd-questions Digest, Vol 284, Issue 11 Message-ID: <4B008F27.4030903@cyberleo.net> In-Reply-To: <393905.86009.qm@web65508.mail.ac4.yahoo.com> References: <393905.86009.qm@web65508.mail.ac4.yahoo.com>
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James Phillips wrote: >> Date: Sat, 14 Nov 2009 20:29:59 -0600 >> From: CyberLeo Kitsana <cyberleo@cyberleo.net> >> Subject: [FreeBSD Questions] Filesystem image as root >> >> The single IDE connector is accessible via the legacy ISA >> ports, and is >> thus limited to PIO modes (about 1.6MB/sec max, even with >> an actual hard >> drive instead of a CF card). > > You are off by an order of magnitude (base 2 or 10): > Pio mode 0 is ~3.3 MB/s > Pio mode 4 is ~16.7 MB/s > > http://www.pcguide.com/ref/hdd/if/ide/modesPIO-c.html > > You can probably set PIO mode 4 for with: > # atacontrol mode ad0 PIO4 If only that were true in this case. (85eef1f3)[root@ss4200 ~]# atacontrol mode ad0 PIO4 current mode = PIO2 (85eef1f3)[root@ss4200 ~]# atacontrol mode ad0 PIO4 current mode = PIO2 (85eef1f3)[root@ss4200 ~]# dd if=/dev/ad0 of=/dev/null bs=4096 count=4096 4096+0 records in 4096+0 records out 16777216 bytes transferred in 10.111748 secs (1659181 bytes/sec) Nothing I've tried seems to boost the throughput, hence the desire to use a compressed cached filesystem image. Thanks for the suggestions, though! -- Fuzzy love, -CyberLeo Technical Administrator CyberLeo.Net Webhosting http://www.CyberLeo.Net <CyberLeo@CyberLeo.Net> Furry Peace! - http://wwww.fur.com/peace/
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