| To: | xfs@xxxxxxxxxxx |
|---|---|
| Subject: | Re: Questions about XFS |
| From: | Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx> |
| Date: | Sat, 26 Oct 2013 05:41:25 -0500 |
| Delivered-to: | xfs@xxxxxxxxxxx |
| In-reply-to: | <526A86F2.9070400@xxxxxxxxxxx> |
| References: | <CAD+1EGPG1G9Q8kwaSUjxVjvx73UByLb3G0rmUbgJr+zD-CnjEw@xxxxxxxxxxxxxx> <20131025164255.46d2829c@xxxxxxxxxxxxxxxxxxxx> <526A86F2.9070400@xxxxxxxxxxx> |
| Reply-to: | stan@xxxxxxxxxxxxxxxxx |
| User-agent: | Mozilla/5.0 (Windows NT 5.1; rv:24.0) Gecko/20100101 Thunderbird/24.0.1 |
On 10/25/2013 9:57 AM, Eric Sandeen wrote: > allocator, but it doesn't have GRIO (Guaranteed Realtime I/O) like > IRIX does. Wasn't it called "Guaranteed-Rate I/O"? And required the Origin ccNUMA hardware including the HUB and XBow ASICs? IIRC this had no real-time guarantee, but simply reserved X amount of bandwidth from the XBow through the HUB to the processor, and finally the kernel and process. Whether the attached disks could sustain the reserved bandwidth was another matter. -- Stan |
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