Messages in this thread | | | Subject | Re: [PATCH 1/4] LoongArch: Use trampoline for exception handlers and kill la.abs | From | Xi Ruoyao <> | Date | Mon, 16 Jan 2023 13:41:17 +0800 |
| |
On Mon, 2023-01-16 at 09:30 +0800, Huacai Chen wrote: > On Sat, Jan 14, 2023 at 2:38 PM Jinyang He <hejinyang@loongson.cn> > wrote: > > > > Hi, Ruoyao and Youling, > > > > I care about the performance when NUMA enabled. We set CSR.EENTRY > > for each possible cpus where is NUMA-relative. So, I guess the more > > codes in NUMA-relative memory makes more performance. If we just set > > handler_trampoline as exception handler, the performance may be > > influenced. > So copying both the handlers and handler_trampoline can solve the > problem? If that is possible, please do that on top of the latest code > in > https://github.com/loongson/linux/commits/loongarch-next
Hi folks,
I just wrote the trampoline code as a PoC to show "relocatable kernel can work" and there must be some better way. But I'm too sad to write any serious code in this month, and I don't have access to a LoongArch NUMA system. So I think it's better to leave the job for you guys now :).
Best regards
-- Xi Ruoyao <xry111@xry111.site> School of Aerospace Science and Technology, Xidian University
| |