Date: Mon, 05 Oct 1998 22:48:54 +0000 From: Alex Farber <alex@kawo2.rwth-aachen.de> To: aic7xxx Mailing List <AIC7xxx@FreeBSD.ORG> Subject: Re: Ultra2 transfer mode? - why only 40 MB/s ? Message-ID: <36194CD6.191CF4D4@kawo2.rwth-aachen.de> References: <36190ABA.C835F0B8@ivw.de> <13849.7607.119459.475917@bofh.me.umn.edu>
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Richard Kaszeta wrote:
> Device using Wide/Sync transfers at
> 80.0 MByte/sec, offset 15
Hi guys,
unfortunately I can't follow you all very well, what does it
mean "sync/async"? I am using pre15 and it works fine, but
I have a feeling that it is slower than win95 on the same
ultra-wide scsi drive... I would appreciate if someone gives
me a tip - should I use some comand line switch or smth. else?
Thank you!
Alex
PS: Here's what I get from cat /proc/scsi/aic7xxx/0:
Adaptec AIC7xxx driver version: 5.1.0pre15/3.2.4
Compile Options:
AIC7XXX_RESET_DELAY : 5
AIC7XXX_TAGGED_QUEUEING: Adapter Support Enabled
Check below to see which
devices use tagged queueing
AIC7XXX_PAGE_ENABLE : Enabled (This is no longer an option)
AIC7XXX_PROC_STATS : Disabled
Adapter Configuration:
SCSI Adapter: Adaptec AIC-7890/1 Ultra2 SCSI host adapter
Ultra2-LVD/SE Wide Controller
PCI MMAPed I/O Base: 0xe1000000
Adapter SEEPROM Config: SEEPROM found and used.
Adaptec SCSI BIOS: Enabled
IRQ: 11
SCBs: Active 0, Max Active 1,
Allocated 15, HW 32, Page 255
Interrupts: 3937
BIOS Control Word: 0x18a6
Adapter Control Word: 0x005c
Extended Translation: Enabled
Disconnect Enable Flags: 0xffff
Ultra Enable Flags: 0x0000
Tag Queue Enable Flags: 0x0000
Ordered Queue Tag Flags: 0x0000
Default Tag Queue Depth: 8
Tagged Queue By Device array for aic7xxx host instance 0:
{255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255}
Actual queue depth per device for aic7xxx host instance 0:
{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}
Statistics:
(scsi0:0:0:0)
Device using Wide/Sync transfers at
40.0 MByte/sec, offset 15
Device Negotiation Settings
Period Offset Bus Width
User 010 127 1
Goal 010 127 1
Current 012 015 1
Total transfers 3882 (3537 read;345 written)
blks(512) rd=34041; blks(512) wr=1068
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