> (1) > One is we reduce the number of lazy_max_pages (right now its around 32MB per > core worth of pages). > > diff --git a/mm/vmalloc.c b/mm/vmalloc.c > index aa3891e..2720f4f 100644 > --- a/mm/vmalloc.c > +++ b/mm/vmalloc.c > @@ -564,7 +564,7 @@ static unsigned long lazy_max_pages(void) > > log = fls(num_online_cpus()); > > - return log * (32UL * 1024 * 1024 / PAGE_SIZE); > + return log * (8UL * 1024 * 1024 / PAGE_SIZE); > }
This seems like the right fix to me. Perhaps even make it somewhat smaller. Even on larger systems it's probably fine because they have a lot more cores/threads these days, so it will be still sufficiently large. -Andi
