Knightly instance flavor revision

OOD Knightly currently using m1.medium which has the following spec:

• vCPUs: 2
• RAM: 4GB
• Disk: 40GB
• Root Disk: 40GB

Confirmed on knightly:

$ free -h
              total        used        free      shared  buff/cache   available
Mem:           3.7G        375M        2.6G        190M        746M        2.9G
Swap:            0B          0B          0B

$ lsblk
NAME   MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda    253:0    0  40G  0 disk
└─vda1 253:1    0  40G  0 part /

$ df -h
Filesystem                           Size  Used Avail Use% Mounted on
devtmpfs                             1.9G     0  1.9G   0% /dev
tmpfs                                1.9G   16K  1.9G   1% /dev/shm
tmpfs                                1.9G  191M  1.7G  11% /run
tmpfs                                1.9G     0  1.9G   0% /sys/fs/cgroup
/dev/vda1                             40G  3.4G   37G   9% /

According to OOD doc:

Hardware requirements:

• 16 cores and 64GB RAM
• 150MB memory per PUN and the average CPU percentage per Per User NGINX (PUN) is 4%
• /tmp needs to be 50 GB

Tuesday at about 11am, we have 42 concurrent pun processes running on login005:

$ ps aux | grep pun | wc
     42     676    6364