test(devtool): sextuple number of preallocated huge pages

With current number of huge pages (4096) being ok for 1GiB VMs, we need
6 times more of them for 6GiB VMs.

Signed-off-by: Nikita Kalyazin <kalyazin@amazon.com>

Author: kalyazin

tools/devtool

@@ -743,9 +743,9 @@ cmd_test() {
       # It seems that even if the tests using huge pages run sequentially on ag=1 agents, right-sizing the huge pages
       # pool to the total number of huge pages used across all tests results in spurious failures with pool depletion
       # anyway (something else on the host seems to be stealing our huge pages, and we cannot "ear mark" them for
-      # Firecracker processes). Thus, just allocate 8GB of them and call it a day.
+      # Firecracker processes). Thus, just allocate 48GB of them and call it a day.
       say "Setting up huge pages pool"
-      num_hugetlbfs_pages=4096
+      num_hugetlbfs_pages=24552
 
       huge_pages_old=$(cat /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages)
       huge_pages_new=$(echo $num_hugetlbfs_pages |sudo tee /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages)