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#!/bin/sh
# flush memory and
# create lots of small continuous VMAs
. ./hw_vars
# vm_area_struct slab could consume a hell lot of memory for this small alloc test
# let's restrict it to 1/3 MemTotal
slab_mem_max=$((mem/3))
# vm_area_struct is 192 bytes, 1 page could host 21 vm_area_struct
# below is a line from slabinfo, where it shows 1 slab has 2 pages and 42 objects in these 2 pages.
# vm_area_struct 58264 60816 192 42 2 : tunables 0 0 0 : slabdata 1448 1448 0
vma_nr_max=$((21*slab_mem_max/4096))
size=$ROTATE_BYTES
unit_size=$((10 * pagesize))
while [ $((size/unit_size)) -gt $vma_nr_max ]
do
size=$((size>>1))
done
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