From: Jeff Garzik <jeff@garzik.org>
To: Trent George <trent@norwalkdist.com>
Cc: Tejun Heo <htejun@gmail.com>, linux-ide@vger.kernel.org
Subject: Re: multiple irqs per card on the sata_sil24
Date: Tue, 26 Sep 2006 20:46:04 -0400 [thread overview]
Message-ID: <4519C9CC.6060701@garzik.org> (raw)
In-Reply-To: <KMS--2046545466-1840@mail.norwalkdist.com>
Trent George wrote:
> While reading the specs, I noticed that the pci-x cards support splitting each port to a unique irq pin.
> If you have 6 cards with 4 ports, can you spread the load over 24 irqs ?
> I dont know if the motherboard can support this, or the driver could be modified to do this.
> It would be nice when there is a lot of of disk traffic on lots of drives.... adding port multiplier drives to each channel.
> I am trying to build a VERY large duplication system using LOTS of bandwidth. the irq can really put stress on the system.
>
> the final system would be 100+ drives all going over 22mb/s.
> It should give a nice supermicro board with 3 buses a real workout.
You're still going to max out PCI bus bandwidth first. Best solution is
PCI Express with MSI...
Jeff
next prev parent reply other threads:[~2006-09-27 0:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-27 0:31 multiple irqs per card on the sata_sil24 Trent George
2006-09-27 0:46 ` Jeff Garzik [this message]
2006-09-27 1:07 ` Tejun Heo
2006-09-27 1:09 ` Tejun Heo
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