Re: [RFC PATCH v9 00/13] Add support for eXclusive Page Frame Ownership

2019-04-05 Thread Jon Masters
Khalid, Thanks for these patches. We will test them on x86 and investigate the Arm pieces highlighted. Jon. -- Computer Architect > On Apr 4, 2019, at 00:37, Khalid Aziz wrote: > > This is another update to the work Juerg, Tycho and Julian have > done on XPFO. After the last round of updat

[RFC PATCH v9 00/13] Add support for eXclusive Page Frame Ownership

2019-04-03 Thread Khalid Aziz
This is another update to the work Juerg, Tycho and Julian have done on XPFO. After the last round of updates, we were seeing very significant performance penalties when stale TLB entries were flushed actively after an XPFO TLB update. Benchmark for measuring performance is kernel build using para