Re: [PATCH] try parent numa_node at first before using default

On 7/12/07, Greg KH <[email protected]> wrote:

On Thu, Jul 12, 2007 at 10:59:53AM -0700, Yinghai Lu wrote:
Please split this into two separate patches, as they are doing two
different things.  One for the driver core, and one for pci devices.

they need to applied together, otherwise all pci_dev numa_node will be
change to device_add to -1 after pci_device_add.

Also, what kind of performance issues have you seen with this patch in
place?  As your previous patches were incorrect, I am guessing that you
are not able to test this?

forcedeth on second node. without this patch in addition to
get_mpbus_to_node patch, the numa_node is always 0.


LBsuse91AMD64:/sys/devices/pci0000:80/0000:80:08.0 # cat numa_node
1
LBsuse91AMD64:/sys/devices/pci0000:80/0000:80:08.0 # cat net/eth2/numa_node
1

and after initialization

LBsuse91AMD64:~ # tail -10 /var/log/messages
Jul 13 03:05:16 LBsuse91AMD64 kernel: forcedeth 0000:00:08.0: YHLU
gart_map_single - !need_iommu: ffff81011d33d010, 11d33d010, 670
Jul 13 03:05:26 LBsuse91AMD64 kernel: forcedeth 0000:00:08.0: YHLU
gart_map_single - !need_iommu: ffff81011d322010, 11d322010, 670
Jul 13 03:05:29 LBsuse91AMD64 kernel: forcedeth 0000:00:08.0: YHLU
gart_map_single - !need_iommu: ffff81011d33a810, 11d33a810, 670
Jul 13 03:05:31 LBsuse91AMD64 kernel: forcedeth 0000:00:08.0: YHLU
gart_map_single - !need_iommu: ffff81011d33e810, 11d33e810, 670
Jul 13 03:05:31 LBsuse91AMD64 kernel: forcedeth 0000:00:08.0: YHLU
gart_map_single - !need_iommu: ffff81011d358810, 11d358810, 670
Jul 13 03:05:31 LBsuse91AMD64 kernel: forcedeth 0000:00:08.0: YHLU
gart_map_single - !need_iommu: ffff81011cfe1010, 11cfe1010, 670
Jul 13 03:05:31 LBsuse91AMD64 kernel: forcedeth 0000:00:08.0: YHLU
gart_map_single - !need_iommu: ffff81011cfe1810, 11cfe1810, 670
Jul 13 03:05:31 LBsuse91AMD64 kernel: forcedeth 0000:00:08.0: YHLU
gart_map_single - !need_iommu: ffff81011c7f9010, 11c7f9010, 670
Jul 13 03:05:31 LBsuse91AMD64 kernel: forcedeth 0000:00:08.0: YHLU
gart_map_single - !need_iommu: ffff81011c7f9810, 11c7f9810, 670
Jul 13 03:05:34 LBsuse91AMD64 kernel: forcedeth 0000:00:08.0: YHLU
gart_map_single - !need_iommu: ffff81011c2a7010, 11c2a7010, 670

gart_map_single is used all the time via netdev_alloc_skb for forcedth.

YH
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• Follow-Ups:
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    • From: Yinghai Lu <[email protected]>
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    • From: Greg KH <[email protected]>

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