Re: performance regression noted in v5.11-rc after c062db039f40

On 2021/1/23 1:38, Robin Murphy wrote: I kind of believe it's due to the indirect calls. This is also reported on ARM. https://lore.kernel.org/linux-iommu/1610376862-927-1-git-send-email-isa...@codeaurora.org/ Maybe we can try changing indirect calls to static ones to verify this problem.

Re: performance regression noted in v5.11-rc after c062db039f40

> On Jan 22, 2021, at 12:38 PM, Robin Murphy wrote: > > On 2021-01-22 16:18, Chuck Lever wrote: >>> On Jan 21, 2021, at 10:00 PM, Lu Baolu wrote: >>> >>> +Isaac >>> >>> On 1/22/21 3:09 AM, Chuck Lever wrote: > On Jan 18, 2021, at 1:00 PM, Robin Murphy wrote: > > On 2021-01-18

Re: performance regression noted in v5.11-rc after c062db039f40

On 2021-01-22 16:18, Chuck Lever wrote: On Jan 21, 2021, at 10:00 PM, Lu Baolu wrote: +Isaac On 1/22/21 3:09 AM, Chuck Lever wrote: On Jan 18, 2021, at 1:00 PM, Robin Murphy wrote: On 2021-01-18 16:18, Chuck Lever wrote: On Jan 12, 2021, at 9:38 AM, Will Deacon wrote: [Expanding cc

Re: performance regression noted in v5.11-rc after c062db039f40

> On Jan 21, 2021, at 10:00 PM, Lu Baolu wrote: > > +Isaac > > On 1/22/21 3:09 AM, Chuck Lever wrote: >>> On Jan 18, 2021, at 1:00 PM, Robin Murphy wrote: >>> >>> On 2021-01-18 16:18, Chuck Lever wrote: > On Jan 12, 2021, at 9:38 AM, Will Deacon wrote: > > [Expanding cc list

Re: performance regression noted in v5.11-rc after c062db039f40

+Isaac On 1/22/21 3:09 AM, Chuck Lever wrote: On Jan 18, 2021, at 1:00 PM, Robin Murphy wrote: On 2021-01-18 16:18, Chuck Lever wrote: On Jan 12, 2021, at 9:38 AM, Will Deacon wrote: [Expanding cc list to include DMA-IOMMU and intel IOMMU folks] On Fri, Jan 08, 2021 at 04:18:36PM

Re: performance regression noted in v5.11-rc after c062db039f40

> On Jan 18, 2021, at 1:00 PM, Robin Murphy wrote: > > On 2021-01-18 16:18, Chuck Lever wrote: >>> On Jan 12, 2021, at 9:38 AM, Will Deacon wrote: >>> >>> [Expanding cc list to include DMA-IOMMU and intel IOMMU folks] >>> >>> On Fri, Jan 08, 2021 at 04:18:36PM -0500, Chuck Lever wrote:

Re: performance regression noted in v5.11-rc after c062db039f40

> On Jan 19, 2021, at 9:11 PM, Lu Baolu wrote: > > On 1/19/21 10:37 PM, Chuck Lever wrote: >>> On Jan 18, 2021, at 8:22 PM, Lu Baolu wrote: >>> >>> Do you mind posting the cap and ecap of the iommu used by your device? >>> >>> You can get it via sysfs, for example: >>> >>>

Re: performance regression noted in v5.11-rc after c062db039f40

On 1/19/21 10:37 PM, Chuck Lever wrote: On Jan 18, 2021, at 8:22 PM, Lu Baolu wrote: Do you mind posting the cap and ecap of the iommu used by your device? You can get it via sysfs, for example: /sys/bus/pci/devices/:00:14.0/iommu/intel-iommu# ls address cap domains_supported

Re: performance regression noted in v5.11-rc after c062db039f40

> On Jan 18, 2021, at 8:22 PM, Lu Baolu wrote: > > Do you mind posting the cap and ecap of the iommu used by your device? > > You can get it via sysfs, for example: > > /sys/bus/pci/devices/:00:14.0/iommu/intel-iommu# ls > address cap domains_supported domains_used ecap version

Re: performance regression noted in v5.11-rc after c062db039f40

Hi Chuck, On 1/19/21 4:09 AM, Chuck Lever wrote: On Jan 18, 2021, at 1:00 PM, Robin Murphy wrote: On 2021-01-18 16:18, Chuck Lever wrote: On Jan 12, 2021, at 9:38 AM, Will Deacon wrote: [Expanding cc list to include DMA-IOMMU and intel IOMMU folks] On Fri, Jan 08, 2021 at 04:18:36PM

Re: performance regression noted in v5.11-rc after c062db039f40

> On Jan 18, 2021, at 1:00 PM, Robin Murphy wrote: > > On 2021-01-18 16:18, Chuck Lever wrote: >>> On Jan 12, 2021, at 9:38 AM, Will Deacon wrote: >>> >>> [Expanding cc list to include DMA-IOMMU and intel IOMMU folks] >>> >>> On Fri, Jan 08, 2021 at 04:18:36PM -0500, Chuck Lever wrote:

Re: performance regression noted in v5.11-rc after c062db039f40

On 2021-01-18 16:18, Chuck Lever wrote: On Jan 12, 2021, at 9:38 AM, Will Deacon wrote: [Expanding cc list to include DMA-IOMMU and intel IOMMU folks] On Fri, Jan 08, 2021 at 04:18:36PM -0500, Chuck Lever wrote: Hi- [ Please cc: me on replies, I'm not currently subscribed to iommu@lists

Re: performance regression noted in v5.11-rc after c062db039f40

> On Jan 12, 2021, at 9:38 AM, Will Deacon wrote: > > [Expanding cc list to include DMA-IOMMU and intel IOMMU folks] > > On Fri, Jan 08, 2021 at 04:18:36PM -0500, Chuck Lever wrote: >> Hi- >> >> [ Please cc: me on replies, I'm not currently subscribed to >> iommu@lists ]. >> >> I'm running

Re: performance regression noted in v5.11-rc after c062db039f40

> On Jan 13, 2021, at 9:07 AM, Chuck Lever wrote: > > > >> On Jan 12, 2021, at 9:25 PM, Lu Baolu wrote: >> >> Hi, >> >> On 1/12/21 10:38 PM, Will Deacon wrote: >>> [Expanding cc list to include DMA-IOMMU and intel IOMMU folks] >>> On Fri, Jan 08, 2021 at 04:18:36PM -0500, Chuck Lever

Re: performance regression noted in v5.11-rc after c062db039f40

> On Jan 12, 2021, at 9:25 PM, Lu Baolu wrote: > > Hi, > > On 1/12/21 10:38 PM, Will Deacon wrote: >> [Expanding cc list to include DMA-IOMMU and intel IOMMU folks] >> On Fri, Jan 08, 2021 at 04:18:36PM -0500, Chuck Lever wrote: >>> Hi- >>> >>> [ Please cc: me on replies, I'm not currently

Re: performance regression noted in v5.11-rc after c062db039f40

Hi, On 1/12/21 10:38 PM, Will Deacon wrote: [Expanding cc list to include DMA-IOMMU and intel IOMMU folks] On Fri, Jan 08, 2021 at 04:18:36PM -0500, Chuck Lever wrote: Hi- [ Please cc: me on replies, I'm not currently subscribed to iommu@lists ]. I'm running NFS performance tests on

Re: performance regression noted in v5.11-rc after c062db039f40

[Expanding cc list to include DMA-IOMMU and intel IOMMU folks] On Fri, Jan 08, 2021 at 04:18:36PM -0500, Chuck Lever wrote: > Hi- > > [ Please cc: me on replies, I'm not currently subscribed to > iommu@lists ]. > > I'm running NFS performance tests on InfiniBand using CX-3 Pro cards > at