Date: Mon, 27 Sep 1999 21:20:23 +0200 (MET DST) From: Gerard Roudier <groudier@club-internet.fr> To: Kevin Street <street@iname.com> Cc: scsi@FreeBSD.ORG Subject: Re: sym driver 0.3.0 Message-ID: <Pine.LNX.3.95.990927211018.392A-100000@localhost> In-Reply-To: <87puz5q8xg.fsf@mired.eh.local>
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Hello, You test is not serious. If you only can provide 1.5MB/second throughput for a benchmark of SCSI driver, please go away or make comparison with an AHA 1542. I consider your posting to be a bad joke and hope that it is not intentionnaly just bad taste.=20 G=E9rard. On 27 Sep 1999, Kevin Street wrote: > Gerard Roudier <groudier@club-internet.fr> writes: >=20 > > I have made available revision 0.3.0 of the sym_hipd driver for > > FreeBSD-CAM. This driver version behaves correctly on QUEUE FULL > > condition and has been rock solid for me.=20 >=20 > > Latest revision: > > sym-0.3.0-1990925 >=20 > I decided to give this a try on an ASUS SC-875 (since I don't have an > 896) to see what it would do. It's stable and seems to give similar=20 > performance to the ncr driver on make buildworld's (src on scsi, obj on i= de). =20 >=20 > It's about 30% slower than the ncr driver with dump however. =20 > I was dumping from file systems on da1 to files on da0 > (a syquest syjet removable scsi). >=20 > The sym driver gave me about 1125 - 1250 KBytes per second throughput. > The ncr driver gave about 1550 - 1725 KBytes per second as reported by=20 > dump. I tried these dumps a couple of times each with similar > numbers. These are medium size (400M - 750M) dumps. Small file systems= =20 > (eg root) were closer in speed with a slight edge to the ncr. > =20 > Info from dmesg: >=20 > ncr0: <ncr 53c875 fast20 wide scsi> irq 19 at device 9.0 on pci0 >=20 > or for the sym: >=20 > sym0: <875> irq 19 at device 9.0 on pci0 > sym0: Symbios NVRAM, ID 7, Fast-20, parity checking > sym0: open drain IRQ line driver, using on-chip SRAM > ... > sym0: Downloading SCSI SCRIPTS. > (noperiph:sym0:0:-1:-1): SCSI bus reset delivered. > changing root device to da1s1a > da0 at sym0 bus 0 target 0 lun 0 > da0: <SyQuest SyJet-S 0095> Removable Direct Access SCSI-2 device=20 > da0: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing Enabled > da0: 1430MB (2929800 512 byte sectors: 255H 63S/T 182C) > da1 at sym0 bus 0 target 8 lun 0 > da1: <IBM DNES-309170W SA30> Fixed Direct Access SCSI-3 device=20 > da1: 40.000MB/s transfers (20.000MHz, offset 16, 16bit), Tagged Queueing = Enabled > da1: 8748MB (17916240 512 byte sectors: 255H 63S/T 1115C) >=20 > --=20 > Kevin Street > street@iname.com >=20 >=20 > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-scsi" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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