cvm: Add built-in swap config #358
Conversation
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We should support the ability to update swap size before shipping it, because only allowing creation without the option to adjust swap size will seem strange to users. |
They can update the compose file and reboot the CVM. It is just not adjustable after booting at runtime. |
Does this mean the swap will always be recreated when the CVM reboots, and the mount configuration won't persist? |
The swap data is on the persistent disk, but it was always removed and create a new one on each boot. |
It will increase boot time. Can we log the time for swap processing? |
There is already timestamp in the log. It cost about 100ms to create a 16GB swap file or zvol on a new created CVM. |
Usage:
Add
swap_sizein app-compose.json:{ "swap_size": "2G", }Or
{ "swap_size": 2147483648, }