On Thu, Jul 06, 2017 at 11:14:00AM -0700, Ray Jui wrote:
> On 7/6/17 8:08 AM, Will Deacon wrote:
> > On Wed, Jul 05, 2017 at 04:24:22PM -0700, Ray Jui wrote:
> >> However, with the fix patch, I can still see the deadlock message when I
> >> have > 32 iperf TX threads active in the system:
> >
> >
Hi Will,
On 7/6/17 8:08 AM, Will Deacon wrote:
> Hi Ray,
>
> Thanks for testing this, and sorry it didn't help.
>
> On Wed, Jul 05, 2017 at 04:24:22PM -0700, Ray Jui wrote:
>> On 7/5/17 1:41 AM, Will Deacon wrote:
>>> On Tue, Jul 04, 2017 at 06:45:17PM -0700, Ray Jui wrote:
Has anything fun
Hi Ray,
Thanks for testing this, and sorry it didn't help.
On Wed, Jul 05, 2017 at 04:24:22PM -0700, Ray Jui wrote:
> On 7/5/17 1:41 AM, Will Deacon wrote:
> > On Tue, Jul 04, 2017 at 06:45:17PM -0700, Ray Jui wrote:
> >> Has anything functionally changed between PATCH v2 and v1? I'm seeing a
> >
Hi Will,
On 7/5/17 1:41 AM, Will Deacon wrote:
> On Tue, Jul 04, 2017 at 06:45:17PM -0700, Ray Jui wrote:
>> Hi Will/Robin,
>>
>> Has anything functionally changed between PATCH v2 and v1? I'm seeing a
>> very different L2 throughput with v2 (in general a lot worse with v2 vs.
>> v1); however, I'm
On Tue, Jul 04, 2017 at 06:45:17PM -0700, Ray Jui wrote:
> Hi Will/Robin,
>
> Has anything functionally changed between PATCH v2 and v1? I'm seeing a
> very different L2 throughput with v2 (in general a lot worse with v2 vs.
> v1); however, I'm currently unable to reproduce the TLB sync timed out
Hi Will/Robin,
Has anything functionally changed between PATCH v2 and v1? I'm seeing a
very different L2 throughput with v2 (in general a lot worse with v2 vs.
v1); however, I'm currently unable to reproduce the TLB sync timed out
issue with v2 (without the patch from Will's email).
It could also
Hi Will,
On 7/4/17 10:31 AM, Will Deacon wrote:
> Ray,
>
> On Wed, Jun 28, 2017 at 10:02:35AM -0700, Ray Jui wrote:
>> On 6/28/17 4:46 AM, Will Deacon wrote:
>>> Robin and I have been bashing our heads against the tlb_sync_pending flag
>>> this morning, and we reckon it could have something to do
Ray,
On Wed, Jun 28, 2017 at 10:02:35AM -0700, Ray Jui wrote:
> On 6/28/17 4:46 AM, Will Deacon wrote:
> > Robin and I have been bashing our heads against the tlb_sync_pending flag
> > this morning, and we reckon it could have something to do with your timeouts
> > on MMU-500.
> >
> > On Tue, Jun
Hi Will/Robin,
On 6/28/17 4:46 AM, Will Deacon wrote:
> Hi Ray,
>
> Robin and I have been bashing our heads against the tlb_sync_pending flag
> this morning, and we reckon it could have something to do with your timeouts
> on MMU-500.
>
> On Tue, Jun 27, 2017 at 09:43:19AM -0700, Ray Jui wrote:
Hi Ray,
Robin and I have been bashing our heads against the tlb_sync_pending flag
this morning, and we reckon it could have something to do with your timeouts
on MMU-500.
On Tue, Jun 27, 2017 at 09:43:19AM -0700, Ray Jui wrote:
> >> Also, in a few occasions, I observed the following message durin
Hi Robin,
On 6/20/17 6:37 AM, Robin Murphy wrote:
> On 15/06/17 01:40, Ray Jui wrote:
>> Hi Robin,
>>
>> I have applied this patch series on top of v4.12-rc4, and ran various
>> Ethernet and NVMf target throughput tests on it.
>>
>> To give you some background of my setup:
>>
>> The system is a AR
On Wed, Jun 14, 2017 at 05:40:30PM -0700, Ray Jui wrote:
> With the NVMf target test with 4 SSDs, fio based test, random read, 4k,
> 8 jobs:
>
> Without IOMMU:
>
> IOPS = 1080K
>
> With IOMMU, but without your latest patch:
>
> IOPS = 520K
>
> With IOMMU and your latest patch:
>
> IOPS = 500K
On 15/06/17 01:40, Ray Jui wrote:
> Hi Robin,
>
> I have applied this patch series on top of v4.12-rc4, and ran various
> Ethernet and NVMf target throughput tests on it.
>
> To give you some background of my setup:
>
> The system is a ARMv8 based system with 8 cores. It has various PCIe
> root
On 15/06/2017 01:40, Ray Jui via iommu wrote:
Hi Robin,
wangzhou tested this patchset on our SMMUv3-based development board with
a 10G PCI NIC card.
Currently we see a ~17% performance (throughput) drop when enabling the
SMMU, but only a ~8% drop with your patchset.
FYI, for our integrated
Hi Robin,
I have applied this patch series on top of v4.12-rc4, and ran various
Ethernet and NVMf target throughput tests on it.
To give you some background of my setup:
The system is a ARMv8 based system with 8 cores. It has various PCIe
root complexes that can be used to connect to PCIe endpoi
Hi Robin,
On 6/8/2017 7:51 AM, Robin Murphy wrote:
Hi all,
Here's the cleaned up nominally-final version of the patches everybody's
keen to see. #1 is just a non-critical thing-I-spotted-in-passing fix,
#2-#4 do some preparatory work (and bid farewell to everyone's least
favourite bit of code,
Hi all,
Here's the cleaned up nominally-final version of the patches everybody's
keen to see. #1 is just a non-critical thing-I-spotted-in-passing fix,
#2-#4 do some preparatory work (and bid farewell to everyone's least
favourite bit of code, hooray!), and #5-#8 do the dirty deed itself.
The bra
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