Yea, yea, i know, replying to myself is lame.... I did a bit more digging and it seems that the newer aic7xxx driver is not all that its cracked up to be. Some recent traffic on a Debian devel NG reported some rather poor results (data xfer rates etc) using the newer aic7xxx, as compared to the older aic7xxx_old, plus the max tag count does not appear to get throttled down with the older driver. The thread is here: http://groups.google.com/groups?hl=en&threadm=15340.14898.405416.452033%40em2.my.own.domain&rnum=15&prev=/groups%3Fq%3D%2B%2522locking%2Bmax%2Btag%2Bcount%2Bat%2522%26hl%3Den%26start%3D10%26sa%3DN
--- Net Llama <[EMAIL PROTECTED]> wrote: > Well, its occuring because the new aic7xxx driver utilizes a maximum > tag > queue depth of 255 tags. Your devices are supporting only a maximum > tag > count of 110, so it's throttling it downward. Also these 'error' > messages should only appear once and no more (until a reboot). > > I know this isnt' really answering your quesion, but its all i can > come > up with at the moment. Unfortunately, i only have 1 box here at home > that is SCSI, and it has a Symbios controller, not an Adaptec. Later > this week, when i'm back at work, i can poke around on one of the > boxes > that has an Adaptec controller, and see if i can find some kind of > /proc > setting for this. Which kernel version is this, anyway? > > --- Douglas J Hunley <[EMAIL PROTECTED]> wrote: > > during boot-up I see 'locking max tag count at 110' a couple of > times > > during > > the boot. I know what this message is, but I'm wondering if there is > > anywhere > > I can set this value such that the kernel doesn't have to guess it. > > In other words, when the SCSI subsystem is loaded, it says 'enabling > > tagged > > queue operatios (256)' and then a little later it says 'locking max > > tag count > > at 110'. is there some lilo parameter or something that I can set so > > that the > > value is 110 from the start? thanks ===== ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Lonni J. Friedman [EMAIL PROTECTED] Linux Step-by-step help: http://netllama.ipfox.com . __________________________________________________ Do You Yahoo!? Send your FREE holiday greetings online! http://greetings.yahoo.com _______________________________________________ Linux-users mailing list Archives, Digests, etc at http://linux.nf/mailman/listinfo/linux-users
