Re: [PATCH v2 0/4] Optimise 64-bit IOVA allocations

2017-08-08 Thread Leizhen (ThunderTown)
On 2017/8/9 11:24, Ganapatrao Kulkarni wrote: > On Wed, Aug 9, 2017 at 7:12 AM, Leizhen (ThunderTown) > wrote: >> >> >> On 2017/8/8 20:03, Ganapatrao Kulkarni wrote: >>> On Wed, Jul 26, 2017 at 4:47 PM, Leizhen (ThunderTown) >>> wrote: On 2017/7/26 19:08, Joerg Roedel wrote:

Re: [PATCH v2 0/4] Optimise 64-bit IOVA allocations

2017-08-08 Thread Ganapatrao Kulkarni
On Wed, Aug 9, 2017 at 7:12 AM, Leizhen (ThunderTown) wrote: > > > On 2017/8/8 20:03, Ganapatrao Kulkarni wrote: >> On Wed, Jul 26, 2017 at 4:47 PM, Leizhen (ThunderTown) >> wrote: >>> >>> >>> On 2017/7/26 19:08, Joerg Roedel wrote: Hi Robin. On Fri, Jul 21, 2017 at 12:41:57PM +010

Re: [PATCH v2 0/4] Optimise 64-bit IOVA allocations

2017-08-08 Thread Leizhen (ThunderTown)
On 2017/8/8 20:03, Ganapatrao Kulkarni wrote: > On Wed, Jul 26, 2017 at 4:47 PM, Leizhen (ThunderTown) > wrote: >> >> >> On 2017/7/26 19:08, Joerg Roedel wrote: >>> Hi Robin. >>> >>> On Fri, Jul 21, 2017 at 12:41:57PM +0100, Robin Murphy wrote: Hi all, In the wake of the ARM SMMU

Re: [PATCH v2 0/4] Optimise 64-bit IOVA allocations

2017-08-08 Thread Ganapatrao Kulkarni
On Wed, Jul 26, 2017 at 4:47 PM, Leizhen (ThunderTown) wrote: > > > On 2017/7/26 19:08, Joerg Roedel wrote: >> Hi Robin. >> >> On Fri, Jul 21, 2017 at 12:41:57PM +0100, Robin Murphy wrote: >>> Hi all, >>> >>> In the wake of the ARM SMMU optimisation efforts, it seems that certain >>> workloads (e.

Re: [PATCH v2 0/4] Optimise 64-bit IOVA allocations

2017-07-26 Thread Leizhen (ThunderTown)
On 2017/7/26 19:08, Joerg Roedel wrote: > Hi Robin. > > On Fri, Jul 21, 2017 at 12:41:57PM +0100, Robin Murphy wrote: >> Hi all, >> >> In the wake of the ARM SMMU optimisation efforts, it seems that certain >> workloads (e.g. storage I/O with large scatterlists) probably remain quite >> heavily

Re: [PATCH v2 0/4] Optimise 64-bit IOVA allocations

2017-07-26 Thread Joerg Roedel
Hi Robin. On Fri, Jul 21, 2017 at 12:41:57PM +0100, Robin Murphy wrote: > Hi all, > > In the wake of the ARM SMMU optimisation efforts, it seems that certain > workloads (e.g. storage I/O with large scatterlists) probably remain quite > heavily influenced by IOVA allocation performance. Separatel

[PATCH v2 0/4] Optimise 64-bit IOVA allocations

2017-07-21 Thread Robin Murphy
Hi all, In the wake of the ARM SMMU optimisation efforts, it seems that certain workloads (e.g. storage I/O with large scatterlists) probably remain quite heavily influenced by IOVA allocation performance. Separately, Ard also reported massive performance drops for a graphical desktop on AMD Seatt