Re: [PATCH 0/2] Disabling NMI watchdog during LPM's memory transfer

2022-06-09 Thread Laurent Dufour
On 09/06/2022, 09:45:49, Michael Ellerman wrote: > Nathan Lynch writes: >> Laurent Dufour writes: > ... >> >>> There are ongoing investigations to clarify where and how this latency is >>> happening. I'm not excluding any other issue in the Linux kernel, but right >>> now, this looks to be the b

Re: [PATCH 0/2] Disabling NMI watchdog during LPM's memory transfer

2022-06-09 Thread Michael Ellerman
Nathan Lynch writes: > Laurent Dufour writes: ... > >> There are ongoing investigations to clarify where and how this latency is >> happening. I'm not excluding any other issue in the Linux kernel, but right >> now, this looks to be the best option to prevent system crash during >> LPM. > > It w

Re: [PATCH 0/2] Disabling NMI watchdog during LPM's memory transfer

2022-06-06 Thread Nathan Lynch
Laurent Dufour writes: > On 02/06/2022, 19:58:31, Nathan Lynch wrote: >> Laurent Dufour writes: >>> When a partition is transferred, once it arrives at the destination node, >>> the partition is active but much of its memory must be transferred from the >>> start node. >>> >>> It depends on the a

Re: [PATCH 0/2] Disabling NMI watchdog during LPM's memory transfer

2022-06-03 Thread Laurent Dufour
On 02/06/2022, 19:58:31, Nathan Lynch wrote: > Laurent Dufour writes: >> When a partition is transferred, once it arrives at the destination node, >> the partition is active but much of its memory must be transferred from the >> start node. >> >> It depends on the activity in the partition, but th

Re: [PATCH 0/2] Disabling NMI watchdog during LPM's memory transfer

2022-06-02 Thread Nathan Lynch
Laurent Dufour writes: > When a partition is transferred, once it arrives at the destination node, > the partition is active but much of its memory must be transferred from the > start node. > > It depends on the activity in the partition, but the more CPU the partition > has, the more memory to b