Re: Things left to do for release.
Ben Gertzfield wrote:
> Herbert> I will upload 2.0.36 to potato on Saturday or Sunday. I
> Herbert> will also make a release of 2.0.35 with the AIC7xxx
> Herbert> driver in 36 around the same time for slink.
>
> Sounds good.
I saw messages on the aic7xxx list today like:
| From: vk@spies.com (Venkatesh Krishnamurthi)
| Subject: Is the aic7xxx 5.1.4 slower than 5.1.2? (fwd)
| To: AIC7xxx@FreeBSD.ORG
| Date: Fri, 20 Nov 1998 04:53:01 -0800 (PST)
|
| The 5.1.4 version of the aic7xxx driver in linux kernel 2.0.36 (and linux
| kernel 2.1.128) seems to cause the drives to return lower values with hdparm.
|
| On my system (2 x PII 350 Mhz on a ASUS-P2BDS with 2 IBM 9ZX UW drives):
|
| Combination hdparm -tT /dev/sda values:
| ----------- --------------------------
| 5.1.2 / kernel 2.0.35 16.16 MB/sec
| 5.1.4 / kernel 2.0.36 14.45 MB/sec
| 5.1.4 / kernel 2.1.128 14.45 MB/sec
|
| Also the 5.1.2 driver identified the drive as:
|
| Vendor: IBM Model: DGVS09U Rev: 0
| Type: Direct-Access ANSI SCSI revision: 03
| Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
| (scsi0:0:0:0) Synchronous at 40.0 Mbyte/sec, offset 15
|
| while the 5.1.4 driver reports:
|
| Vendor: IBM Model: DGVS09U Rev: 0
| Direct-Access ANSI SCSI revision: 03
| Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
| (scsi0:0:0:0) Synchronous at 20.0 Mbyte/sec, offset 15
|
| i.e. the interface speed is correctly shown as 40 Mbyte/sec in 5.1.2 while
| it shows up as 20 Mbyte/sec in 5.1.4.
Perhaps the aic7xxx driver isn't out of the woods just yet (although I have
no problems with mine). Still, the latest aic driver is better than the
stock one.
Peter
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