Re: [PATCH] Optimise restore memory allocation

2025-08-29 Thread Andrew Cooper
On 27/08/2025 6:23 pm, Andrew Cooper wrote: > Subject wants to be at least tools/libxc, and probably "Use superpages > where possible on migrate/resume" > > > On 27/08/2025 1:33 pm, Frediano Ziglio wrote: >> Try to allocate larger order pages. >> With some test memory program stressing TLB (many sm

Re: [PATCH] Optimise restore memory allocation

2025-08-28 Thread Oleksii Kurochko
On 8/27/25 7:23 PM, Andrew Cooper wrote: Subject wants to be at least tools/libxc, and probably "Use superpages where possible on migrate/resume" On 27/08/2025 1:33 pm, Frediano Ziglio wrote: Try to allocate larger order pages. With some test memory program stressing TLB (many small random me

Re: [PATCH] Optimise restore memory allocation

2025-08-27 Thread Andrew Cooper
Subject wants to be at least tools/libxc, and probably "Use superpages where possible on migrate/resume" On 27/08/2025 1:33 pm, Frediano Ziglio wrote: > Try to allocate larger order pages. > With some test memory program stressing TLB (many small random > memory accesses) you can get 15% performa

[PATCH] Optimise restore memory allocation

2025-08-27 Thread Frediano Ziglio
Try to allocate larger order pages. With some test memory program stressing TLB (many small random memory accesses) you can get 15% performance improves. On the first memory iteration the sender is currently sending memory in 4mb aligned chunks which allows the receiver to allocate most pages as 2m